EntityFrameworkQueryableExtensions.MaxAsync Method
Definition
Important
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Overloads
| MaxAsync<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>, CancellationToken) |
Asynchronously invokes a projection function on each element of a sequence and returns the maximum resulting value. |
| MaxAsync<TSource>(IQueryable<TSource>, CancellationToken) |
Asynchronously returns the maximum value of a sequence. |
MaxAsync<TSource,TResult>(IQueryable<TSource>, Expression<Func<TSource,TResult>>, CancellationToken)
Asynchronously invokes a projection function on each element of a sequence and returns the maximum resulting value.
public static System.Threading.Tasks.Task<TResult> MaxAsync<TSource,TResult> (this System.Linq.IQueryable<TSource> source, System.Linq.Expressions.Expression<Func<TSource,TResult>> selector, System.Threading.CancellationToken cancellationToken = default);static member MaxAsync : System.Linq.IQueryable<'Source> * System.Linq.Expressions.Expression<Func<'Source, 'Result>> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Result><Extension()>
Public Function MaxAsync(Of TSource, TResult) (source As IQueryable(Of TSource), selector As Expression(Of Func(Of TSource, TResult)), Optional cancellationToken As CancellationToken = Nothing) As Task(Of TResult)Type Parameters
- TSource
The type of the elements of source.
- TResult
The type of the value returned by the function represented by selector.
Parameters
- source
- IQueryable<TSource>
An IQueryable<T> that contains the elements to determine the maximum of.
- selector
- Expression<Func<TSource,TResult>>
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 maximum value in the sequence.
Exceptions
source or selector is null.
source contains no elements.
If the CancellationToken is canceled.
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. See Avoiding DbContext threading issues for more information and examples.
See Querying data with EF Core for more information and examples.
Applies to
MaxAsync<TSource>(IQueryable<TSource>, CancellationToken)
Asynchronously returns the maximum value of a sequence.
public static System.Threading.Tasks.Task<TSource> MaxAsync<TSource> (this System.Linq.IQueryable<TSource> source, System.Threading.CancellationToken cancellationToken = default);static member MaxAsync : System.Linq.IQueryable<'Source> * System.Threading.CancellationToken -> System.Threading.Tasks.Task<'Source><Extension()>
Public Function MaxAsync(Of TSource) (source As IQueryable(Of TSource), Optional cancellationToken As CancellationToken = Nothing) As Task(Of TSource)Type Parameters
- TSource
The type of the elements of source.
Parameters
- source
- IQueryable<TSource>
An IQueryable<T> that contains the elements to determine the maximum 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 maximum value in the sequence.
Exceptions
source is null.
source contains no elements.
If the CancellationToken is canceled.
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. See Avoiding DbContext threading issues for more information and examples.
See Querying data with EF Core for more information and examples.
Applies to
Entity Framework