共用方式為

ISqlExpressionFactory.Convert Method

  • Reference

Definition

Namespace:
Microsoft.EntityFrameworkCore.Query
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Package:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Package:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v8.0.0
Package:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Source:
ISqlExpressionFactory.cs
Source:
ISqlExpressionFactory.cs
Source:
ISqlExpressionFactory.cs

Creates a new SqlExpression which represent casting a SQL expression to different type.

public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression Convert (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression Convert (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);
public Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression Convert (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default);
abstract member Convert : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression
abstract member Convert : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression
Public Function Convert (operand As SqlExpression, type As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlUnaryExpression
Public Function Convert (operand As SqlExpression, type As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlExpression

Parameters

operand
SqlExpression

A SqlExpression to cast.

type
Type

The return type of the expression after cast.

typeMapping
RelationalTypeMapping

A relational type mapping to use for conversion.

Returns

SqlUnaryExpression
SqlExpression

An expression representing cast operation in a SQL tree.

Applies to