SqlExpressionFactory.Constant Metodo

Definizione

Spazio dei nomi:: Microsoft.EntityFrameworkCore.Query

Assembly:: Microsoft.EntityFrameworkCore.Relational.dll

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v10.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v11.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v7.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v8.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v9.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v3.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v3.1.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v5.0.0

Pacchetto:: Microsoft.EntityFrameworkCore.Relational v6.0.0

Importante

Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.

Overload

Nome	Descrizione
Constant(Object, Type, Boolean, RelationalTypeMapping)	Crea un nuovo SqlExpression oggetto che rappresenta una costante in un albero SQL.
Constant(Object, Type, RelationalTypeMapping)	Crea un nuovo SqlExpression oggetto che rappresenta una costante in un albero SQL.
Constant(Object, RelationalTypeMapping)	Crea un nuovo SqlExpression oggetto che rappresenta una costante in un albero SQL.
Constant(Object, Boolean, RelationalTypeMapping)	Crea un nuovo SqlExpression oggetto che rappresenta una costante in un albero SQL.

Constant(Object, Type, Boolean, RelationalTypeMapping)

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

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

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

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

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

Parametri

value: Object

Un valore.

type: Type

Tipo per la costante. Utile quando il valore è Null.

sensitive: Boolean

true se l'espressione contiene valori sensibili; in caso contrario, false.

typeMapping: RelationalTypeMapping

Oggetto RelationalTypeMapping associato all'espressione.

Valori restituiti

SqlExpression

Espressione che rappresenta una costante in un albero SQL.

Implementazioni

Constant(Object, Type, Boolean, RelationalTypeMapping)

Si applica a

Constant(Object, Type, RelationalTypeMapping)

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

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

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

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

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 SqlExpression

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 il valore è Null.

typeMapping: RelationalTypeMapping

Oggetto RelationalTypeMapping associato all'espressione.

Valori restituiti

SqlExpression

SqlConstantExpression

Espressione che rappresenta una costante in un albero SQL.

Implementazioni

Constant(Object, Type, RelationalTypeMapping)

Si applica a

Constant(Object, RelationalTypeMapping)

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

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

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

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

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.SqlExpression
override this.Constant : obj * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression

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 SqlExpression

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.

Valori restituiti

SqlExpression

SqlConstantExpression

Espressione che rappresenta una costante in un albero SQL.

Implementazioni

Constant(Object, RelationalTypeMapping)

Si applica a

Constant(Object, Boolean, RelationalTypeMapping)

Origine:: SqlExpressionFactory.cs

Origine:: SqlExpressionFactory.cs

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

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

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

Public Overridable Function Constant (value As Object, sensitive As Boolean, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlExpression

Parametri

value: Object

Un valore.

sensitive: Boolean

true se l'espressione contiene valori sensibili; in caso contrario, false.

typeMapping: RelationalTypeMapping

Oggetto RelationalTypeMapping associato all'espressione.

Valori restituiti

SqlExpression

Espressione che rappresenta una costante in un albero SQL.

Implementazioni

Constant(Object, Boolean, RelationalTypeMapping)

Si applica a

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