ProjectionBindingExpression Costruttori

  • Riferimento

Definizione

Spazio dei nomi:
Microsoft.EntityFrameworkCore.Query
Assembly:
Microsoft.EntityFrameworkCore.dll
Pacchetto:
Microsoft.EntityFrameworkCore v3.0.0
Pacchetto:
Microsoft.EntityFrameworkCore v3.1.0
Pacchetto:
Microsoft.EntityFrameworkCore v5.0.0
Pacchetto:
Microsoft.EntityFrameworkCore v6.0.0
Pacchetto:
Microsoft.EntityFrameworkCore v7.0.0
Pacchetto:
Microsoft.EntityFrameworkCore v8.0.0

Overload

ProjectionBindingExpression(Expression, IDictionary<IProperty,Int32>)

Crea una nuova istanza della classe ProjectionBindingExpression.
ProjectionBindingExpression(Expression, IReadOnlyDictionary<IProperty,Int32>)
Obsoleti.

Crea una nuova istanza della classe ProjectionBindingExpression.
ProjectionBindingExpression(Expression, ProjectionMember, Type)

Crea una nuova istanza della classe ProjectionBindingExpression.
ProjectionBindingExpression(Expression, Int32, Type)

Crea una nuova istanza della classe ProjectionBindingExpression.

ProjectionBindingExpression(Expression, IDictionary<IProperty,Int32>)

Crea una nuova istanza della classe ProjectionBindingExpression.

public ProjectionBindingExpression (System.Linq.Expressions.Expression queryExpression, System.Collections.Generic.IDictionary<Microsoft.EntityFrameworkCore.Metadata.IProperty,int> indexMap);
new Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression : System.Linq.Expressions.Expression * System.Collections.Generic.IDictionary<Microsoft.EntityFrameworkCore.Metadata.IProperty, int> -> Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression
Public Sub New (queryExpression As Expression, indexMap As IDictionary(Of IProperty, Integer))

Parametri

queryExpression
Expression

Espressione di query da cui ottenere il valore.

indexMap
IDictionary<IProperty,Int32>

Mapping dell'indice da associare alla proiezione dell'espressione di query per ValueBuffer.

Si applica a

ProjectionBindingExpression(Expression, IReadOnlyDictionary<IProperty,Int32>)

Attenzione

The dictionary should be stored in client projection in query expression and access via index based binding.

Crea una nuova istanza della classe ProjectionBindingExpression.

[System.Obsolete("The dictionary should be stored in client projection in query expression and access via index based binding.")]
public ProjectionBindingExpression (System.Linq.Expressions.Expression queryExpression, System.Collections.Generic.IReadOnlyDictionary<Microsoft.EntityFrameworkCore.Metadata.IProperty,int> indexMap);
[<System.Obsolete("The dictionary should be stored in client projection in query expression and access via index based binding.")>]
new Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression : System.Linq.Expressions.Expression * System.Collections.Generic.IReadOnlyDictionary<Microsoft.EntityFrameworkCore.Metadata.IProperty, int> -> Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression
Public Sub New (queryExpression As Expression, indexMap As IReadOnlyDictionary(Of IProperty, Integer))

Parametri

queryExpression
Expression

Espressione di query da cui ottenere il valore.

indexMap
IReadOnlyDictionary<IProperty,Int32>

Mapping dell'indice da associare alla proiezione dell'espressione di query per ValueBuffer.

Attributi
ObsoleteAttribute

Si applica a

ProjectionBindingExpression(Expression, ProjectionMember, Type)

Crea una nuova istanza della classe ProjectionBindingExpression.

public ProjectionBindingExpression (System.Linq.Expressions.Expression queryExpression, Microsoft.EntityFrameworkCore.Query.ProjectionMember projectionMember, Type type);
new Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression : System.Linq.Expressions.Expression * Microsoft.EntityFrameworkCore.Query.ProjectionMember * Type -> Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression
Public Sub New (queryExpression As Expression, projectionMember As ProjectionMember, type As Type)

Parametri

queryExpression
Expression

Espressione di query da cui ottenere il valore.

projectionMember
ProjectionMember

Membro di proiezione da associare all'espressione di query.

type
Type

Tipo clr di valore letto.

Si applica a

ProjectionBindingExpression(Expression, Int32, Type)

Crea una nuova istanza della classe ProjectionBindingExpression.

public ProjectionBindingExpression (System.Linq.Expressions.Expression queryExpression, int index, Type type);
new Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression : System.Linq.Expressions.Expression * int * Type -> Microsoft.EntityFrameworkCore.Query.ProjectionBindingExpression
Public Sub New (queryExpression As Expression, index As Integer, type As Type)

Parametri

queryExpression
Expression

Espressione di query da cui ottenere il valore.

index
Int32

Indice da associare alla proiezione dell'espressione di query.

type
Type

Tipo clr di valore letto.

Si applica a