QueryableExtensions.SumAsync Method
Definition
Important
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Overloads
| SumAsync(IQueryable<Int32>, CancellationToken) |
Asynchronously computes the sum of a sequence of Int32 values. |
| SumAsync(IQueryable<Int64>, CancellationToken) |
Asynchronously computes the sum of a sequence of Int64 values. |
| SumAsync(IQueryable<Nullable<Decimal>>, CancellationToken) |
Asynchronously computes the sum of a sequence of nullable Decimal values. |
| SumAsync(IQueryable<Nullable<Single>>, CancellationToken) |
Asynchronously computes the sum of a sequence of nullable Single values. |
| SumAsync(IQueryable<Nullable<Int32>>, CancellationToken) |
Asynchronously computes the sum of a sequence of nullable Int32 values. |
| SumAsync(IQueryable<Single>, CancellationToken) |
Asynchronously computes the sum of a sequence of Single values. |
| SumAsync(IQueryable<Double>, CancellationToken) |
Asynchronously computes the sum of a sequence of Double values. |
| SumAsync(IQueryable<Nullable<Double>>, CancellationToken) |
Asynchronously computes the sum of a sequence of nullable Double values. |
| SumAsync(IQueryable<Decimal>, CancellationToken) |
Asynchronously computes the sum of a sequence of Decimal values. |
| SumAsync(IQueryable<Nullable<Int64>>, CancellationToken) |
Asynchronously computes the sum of a sequence of nullable Int64 values. |
| SumAsync(IQueryable<Nullable<Single>>) |
Asynchronously computes the sum of a sequence of nullable Single values. |
| SumAsync(IQueryable<Single>) |
Asynchronously computes the sum of a sequence of Single values. |
| SumAsync(IQueryable<Double>) |
Asynchronously computes the sum of a sequence of Double values. |
| SumAsync(IQueryable<Int32>) |
Asynchronously computes the sum of a sequence of Int32 values. |
| SumAsync(IQueryable<Int64>) |
Asynchronously computes the sum of a sequence of Int64 values. |
| SumAsync(IQueryable<Decimal>) |
Asynchronously computes the sum of a sequence of Decimal values. |
| SumAsync(IQueryable<Nullable<Double>>) |
Asynchronously computes the sum of a sequence of nullable Double values. |
| SumAsync(IQueryable<Nullable<Int32>>) |
Asynchronously computes the sum of a sequence of nullable Int32 values. |
| SumAsync(IQueryable<Nullable<Int64>>) |
Asynchronously computes the sum of a sequence of nullable Int64 values. |
| SumAsync(IQueryable<Nullable<Decimal>>) |
Asynchronously computes the sum of a sequence of nullable Decimal values. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>, CancellationToken) |
Asynchronously computes the sum of the sequence of Single values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>, CancellationToken) |
Asynchronously computes the sum of the sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>, CancellationToken) |
Asynchronously computes the sum of the sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>, CancellationToken) |
Asynchronously computes the sum of the sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>, CancellationToken) |
Asynchronously computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>, CancellationToken) |
Asynchronously computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>, CancellationToken) |
Asynchronously computes the sum of the sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>, CancellationToken) |
Asynchronously computes the sum of the sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>, CancellationToken) |
Asynchronously computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>, CancellationToken) |
Asynchronously computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>) |
Asynchronously computes the sum of the sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>) |
Asynchronously computes the sum of the sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>) |
Asynchronously computes the sum of the sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>) |
Asynchronously computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>) |
Asynchronously computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>) |
Asynchronously computes the sum of the sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>) |
Asynchronously computes the sum of the sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>) |
Asynchronously computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>) |
Asynchronously computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence. |
| SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>) |
Asynchronously computes the sum of the sequence of Single values that is obtained by invoking a projection function on each element of the input sequence. |
SumAsync(IQueryable<Int32>, CancellationToken)
Asynchronously computes the sum of a sequence of Int32 values.
public static System.Threading.Tasks.Task<int> SumAsync (this System.Linq.IQueryable<int> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<int> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int>Parameters
- source
- IQueryable<Int32>
A sequence of Int32 values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Int64>, CancellationToken)
Asynchronously computes the sum of a sequence of Int64 values.
public static System.Threading.Tasks.Task<long> SumAsync (this System.Linq.IQueryable<long> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<int64> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>Parameters
- source
- IQueryable<Int64>
A sequence of Int64 values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Decimal>>, CancellationToken)
Asynchronously computes the sum of a sequence of nullable Decimal values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<decimal>> SumAsync (this System.Linq.IQueryable<Nullable<decimal>> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<Nullable<decimal>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<decimal>>Parameters
- source
- IQueryable<Nullable<Decimal>>
A sequence of nullable Decimal values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Single>>, CancellationToken)
Asynchronously computes the sum of a sequence of nullable Single values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<float>> SumAsync (this System.Linq.IQueryable<Nullable<float>> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<Nullable<single>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<single>>Parameters
- source
- IQueryable<Nullable<Single>>
A sequence of nullable Single values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Int32>>, CancellationToken)
Asynchronously computes the sum of a sequence of nullable Int32 values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<int>> SumAsync (this System.Linq.IQueryable<Nullable<int>> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<Nullable<int>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<int>>Parameters
- source
- IQueryable<Nullable<Int32>>
A sequence of nullable Int32 values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Single>, CancellationToken)
Asynchronously computes the sum of a sequence of Single values.
public static System.Threading.Tasks.Task<float> SumAsync (this System.Linq.IQueryable<float> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<single> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<single>Parameters
- source
- IQueryable<Single>
A sequence of Single values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Double>, CancellationToken)
Asynchronously computes the sum of a sequence of Double values.
public static System.Threading.Tasks.Task<double> SumAsync (this System.Linq.IQueryable<double> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<double> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<double>Parameters
- source
- IQueryable<Double>
A sequence of Double values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Double>>, CancellationToken)
Asynchronously computes the sum of a sequence of nullable Double values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<double>> SumAsync (this System.Linq.IQueryable<Nullable<double>> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<Nullable<double>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<double>>Parameters
- source
- IQueryable<Nullable<Double>>
A sequence of nullable Double values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Decimal>, CancellationToken)
Asynchronously computes the sum of a sequence of Decimal values.
public static System.Threading.Tasks.Task<decimal> SumAsync (this System.Linq.IQueryable<decimal> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<decimal> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<decimal>Parameters
- source
- IQueryable<Decimal>
A sequence of Decimal values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Int64>>, CancellationToken)
Asynchronously computes the sum of a sequence of nullable Int64 values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<long>> SumAsync (this System.Linq.IQueryable<Nullable<long>> source, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<Nullable<int64>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<int64>>Parameters
- source
- IQueryable<Nullable<Int64>>
A sequence of nullable Int64 values to calculate the sum of.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Single>>)
Asynchronously computes the sum of a sequence of nullable Single values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<float>> SumAsync (this System.Linq.IQueryable<Nullable<float>> source);static member SumAsync : System.Linq.IQueryable<Nullable<single>> -> System.Threading.Tasks.Task<Nullable<single>><Extension()>
Public Function SumAsync (source As IQueryable(Of Nullable(Of Single))) As Task(Of Nullable(Of Single))Parameters
- source
- IQueryable<Nullable<Single>>
A sequence of nullable Single values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Single>)
Asynchronously computes the sum of a sequence of Single values.
public static System.Threading.Tasks.Task<float> SumAsync (this System.Linq.IQueryable<float> source);static member SumAsync : System.Linq.IQueryable<single> -> System.Threading.Tasks.Task<single><Extension()>
Public Function SumAsync (source As IQueryable(Of Single)) As Task(Of Single)Parameters
- source
- IQueryable<Single>
A sequence of Single values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Double>)
Asynchronously computes the sum of a sequence of Double values.
public static System.Threading.Tasks.Task<double> SumAsync (this System.Linq.IQueryable<double> source);static member SumAsync : System.Linq.IQueryable<double> -> System.Threading.Tasks.Task<double><Extension()>
Public Function SumAsync (source As IQueryable(Of Double)) As Task(Of Double)Parameters
- source
- IQueryable<Double>
A sequence of Double values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Int32>)
Asynchronously computes the sum of a sequence of Int32 values.
public static System.Threading.Tasks.Task<int> SumAsync (this System.Linq.IQueryable<int> source);static member SumAsync : System.Linq.IQueryable<int> -> System.Threading.Tasks.Task<int><Extension()>
Public Function SumAsync (source As IQueryable(Of Integer)) As Task(Of Integer)Parameters
- source
- IQueryable<Int32>
A sequence of Int32 values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Int64>)
Asynchronously computes the sum of a sequence of Int64 values.
public static System.Threading.Tasks.Task<long> SumAsync (this System.Linq.IQueryable<long> source);static member SumAsync : System.Linq.IQueryable<int64> -> System.Threading.Tasks.Task<int64><Extension()>
Public Function SumAsync (source As IQueryable(Of Long)) As Task(Of Long)Parameters
- source
- IQueryable<Int64>
A sequence of Int64 values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Decimal>)
Asynchronously computes the sum of a sequence of Decimal values.
public static System.Threading.Tasks.Task<decimal> SumAsync (this System.Linq.IQueryable<decimal> source);static member SumAsync : System.Linq.IQueryable<decimal> -> System.Threading.Tasks.Task<decimal><Extension()>
Public Function SumAsync (source As IQueryable(Of Decimal)) As Task(Of Decimal)Parameters
- source
- IQueryable<Decimal>
A sequence of Decimal values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Double>>)
Asynchronously computes the sum of a sequence of nullable Double values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<double>> SumAsync (this System.Linq.IQueryable<Nullable<double>> source);static member SumAsync : System.Linq.IQueryable<Nullable<double>> -> System.Threading.Tasks.Task<Nullable<double>><Extension()>
Public Function SumAsync (source As IQueryable(Of Nullable(Of Double))) As Task(Of Nullable(Of Double))Parameters
- source
- IQueryable<Nullable<Double>>
A sequence of nullable Double values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Int32>>)
Asynchronously computes the sum of a sequence of nullable Int32 values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<int>> SumAsync (this System.Linq.IQueryable<Nullable<int>> source);static member SumAsync : System.Linq.IQueryable<Nullable<int>> -> System.Threading.Tasks.Task<Nullable<int>><Extension()>
Public Function SumAsync (source As IQueryable(Of Nullable(Of Integer))) As Task(Of Nullable(Of Integer))Parameters
- source
- IQueryable<Nullable<Int32>>
A sequence of nullable Int32 values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Int64>>)
Asynchronously computes the sum of a sequence of nullable Int64 values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<long>> SumAsync (this System.Linq.IQueryable<Nullable<long>> source);static member SumAsync : System.Linq.IQueryable<Nullable<int64>> -> System.Threading.Tasks.Task<Nullable<int64>><Extension()>
Public Function SumAsync (source As IQueryable(Of Nullable(Of Long))) As Task(Of Nullable(Of Long))Parameters
- source
- IQueryable<Nullable<Int64>>
A sequence of nullable Int64 values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync(IQueryable<Nullable<Decimal>>)
Asynchronously computes the sum of a sequence of nullable Decimal values.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<decimal>> SumAsync (this System.Linq.IQueryable<Nullable<decimal>> source);static member SumAsync : System.Linq.IQueryable<Nullable<decimal>> -> System.Threading.Tasks.Task<Nullable<decimal>><Extension()>
Public Function SumAsync (source As IQueryable(Of Nullable(Of Decimal))) As Task(Of Nullable(Of Decimal))Parameters
- source
- IQueryable<Nullable<Decimal>>
A sequence of nullable Decimal values to calculate the sum of.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the values in the sequence.
- Attributes
Exceptions
source
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>, CancellationToken)
Asynchronously computes the sum of the sequence of Single values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<float> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,float>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, single>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<single>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Single>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>, CancellationToken)
Asynchronously computes the sum of the sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<float>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<float>>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<single>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<single>>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Single>>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>, CancellationToken)
Asynchronously computes the sum of the sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<long>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<long>>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<int64>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<int64>>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Int64>>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>, CancellationToken)
Asynchronously computes the sum of the sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<int>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<int>>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<int>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<int>>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Int32>>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>, CancellationToken)
Asynchronously computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
public static System.Threading.Tasks.Task<Nullable<double>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<double>>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<double>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<double>>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Double>>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>, CancellationToken)
Asynchronously computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
public static System.Threading.Tasks.Task<Nullable<decimal>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<decimal>>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<decimal>>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<decimal>>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Decimal>>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>, CancellationToken)
Asynchronously computes the sum of the sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<long> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,long>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, int64>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int64>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Int64>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>, CancellationToken)
Asynchronously computes the sum of the sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<int> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,int>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, int>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<int>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Int32>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>, CancellationToken)
Asynchronously computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<decimal> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,decimal>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, decimal>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<decimal>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Decimal>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>, CancellationToken)
Asynchronously computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")]
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<double> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,double>> selector, System.Threading.CancellationToken cancellationToken);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, double>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<double>Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Double>>
A projection function to apply to each element.
- cancellationToken
- CancellationToken
A CancellationToken to observe while waiting for the task to complete.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Single>>>)
Asynchronously computes the sum of the sequence of nullable Single values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<float>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<float>>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<single>>> -> System.Threading.Tasks.Task<Nullable<single>><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Nullable(Of Single)))) As Task(Of Nullable(Of Single))Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Single>>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int64>>>)
Asynchronously computes the sum of the sequence of nullable Int64 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<long>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<long>>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<int64>>> -> System.Threading.Tasks.Task<Nullable<int64>><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Nullable(Of Long)))) As Task(Of Nullable(Of Long))Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Int64>>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Int32>>>)
Asynchronously computes the sum of the sequence of nullable Int32 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<int>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<int>>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<int>>> -> System.Threading.Tasks.Task<Nullable<int>><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Nullable(Of Integer)))) As Task(Of Nullable(Of Integer))Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Int32>>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Double>>>)
Asynchronously computes the sum of the sequence of nullable Double values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<double>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<double>>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<double>>> -> System.Threading.Tasks.Task<Nullable<double>><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Nullable(Of Double)))) As Task(Of Nullable(Of Double))Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Double>>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Nullable<Decimal>>>)
Asynchronously computes the sum of the sequence of nullable Decimal values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<Nullable<decimal>> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,Nullable<decimal>>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, Nullable<decimal>>> -> System.Threading.Tasks.Task<Nullable<decimal>><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Nullable(Of Decimal)))) As Task(Of Nullable(Of Decimal))Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Nullable<Decimal>>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int64>>)
Asynchronously computes the sum of the sequence of Int64 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<long> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,long>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, int64>> -> System.Threading.Tasks.Task<int64><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Long))) As Task(Of Long)Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Int64>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Int32>>)
Asynchronously computes the sum of the sequence of Int32 values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<int> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,int>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, int>> -> System.Threading.Tasks.Task<int><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Integer))) As Task(Of Integer)Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Int32>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Double>>)
Asynchronously computes the sum of the sequence of Double values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<double> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,double>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, double>> -> System.Threading.Tasks.Task<double><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Double))) As Task(Of Double)Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Double>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Decimal>>)
Asynchronously computes the sum of the sequence of Decimal values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<decimal> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,decimal>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, decimal>> -> System.Threading.Tasks.Task<decimal><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Decimal))) As Task(Of Decimal)Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Decimal>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
The number of elements in
source
is larger than
MaxValue
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
SumAsync<TSource>(IQueryable<TSource>, Expression<Func<TSource,Single>>)
Asynchronously computes the sum of the sequence of Single values that is obtained by invoking a projection function on each element of the input sequence.
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1006:DoNotNestGenericTypesInMemberSignatures")]
public static System.Threading.Tasks.Task<float> SumAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,float>> selector);static member SumAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, single>> -> System.Threading.Tasks.Task<single><Extension()>
Public Function SumAsync(Of TSource) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, Single))) As Task(Of Single)Type Parameters
- TSource
The type of the elements of source .
Parameters
- source
- IQueryable<TSource>
A sequence of values of type TSource .
- selector
- Expression<Func<TSource,Single>>
A projection function to apply to each element.
Returns
A task that represents the asynchronous operation. The task result contains the sum of the projected values.
- Attributes
Exceptions
source
or
selector
is
null
.
source
doesn't implement
IDbAsyncQueryProvider
.
Remarks
Multiple active operations on the same context instance are not supported. Use 'await' to ensure that any asynchronous operations have completed before calling another method on this context.
Applies to
Entity Framework