SqlExpressionFactory.Constant Metodo

Definizione

Spazio dei nomi:

Microsoft.EntityFrameworkCore.Query

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Pacchetto:

Microsoft.EntityFrameworkCore.Relational v8.0.0

Overload

Constant(Object, Type, RelationalTypeMapping)	Crea un nuovo SqlConstantExpression oggetto che rappresenta una costante in un albero SQL.
Constant(Object, RelationalTypeMapping)	Crea un nuovo SqlConstantExpression oggetto che rappresenta una costante in un albero SQL.

Constant(Object, Type, RelationalTypeMapping)

Crea un nuovo SqlConstantExpression oggetto che rappresenta una costante in un albero SQL.

public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression Constant (object? value, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Constant : obj * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression
override this.Constant : obj * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression

Public Overridable Function Constant (value As Object, type As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlConstantExpression

Parametri

value

Object

Un valore.

type

Type

Tipo per la costante. Utile quando value è Null.

typeMapping

RelationalTypeMapping

Oggetto RelationalTypeMapping associato all'espressione.

Restituisce

SqlConstantExpression

Espressione che rappresenta una costante in un albero SQL.

Implementazioni

Constant(Object, Type, RelationalTypeMapping)

Constant(Object, RelationalTypeMapping)

Crea un nuovo SqlConstantExpression oggetto che rappresenta una costante in un albero SQL.

public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression Constant (object? value, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);

abstract member Constant : obj * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression
override this.Constant : obj * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlConstantExpression

Public Overridable Function Constant (value As Object, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlConstantExpression

Parametri

value

Object

Un valore.

typeMapping

RelationalTypeMapping

Oggetto RelationalTypeMapping associato all'espressione.

Restituisce

SqlConstantExpression

Espressione che rappresenta una costante in un albero SQL.

Implementazioni

Constant(Object, RelationalTypeMapping)