SqlExpressionFactory.Convert 方法

参考

定义

命名空间:: Microsoft.EntityFrameworkCore.Query

程序集:: Microsoft.EntityFrameworkCore.Relational.dll

包:: Microsoft.EntityFrameworkCore.Relational v3.0.0

包:: Microsoft.EntityFrameworkCore.Relational v3.1.0

包:: Microsoft.EntityFrameworkCore.Relational v5.0.0

包:: Microsoft.EntityFrameworkCore.Relational v6.0.0

包:: Microsoft.EntityFrameworkCore.Relational v7.0.0

包:: Microsoft.EntityFrameworkCore.Relational v8.0.0

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

创建一个表示将 SQL 表达式强制转换为不同类型的新 SqlUnaryExpression 。

public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression Convert (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression operand, Type type, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping typeMapping = default);

public virtual Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression 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
override this.Convert : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Type * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping -> Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression

Public Overridable Function Convert (operand As SqlExpression, type As Type, Optional typeMapping As RelationalTypeMapping = Nothing) As SqlUnaryExpression