SqlExpressionVisitor.VisitSqlUnary(SqlUnaryExpression) 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。

访问 sql 一元表达式的子级。

protected abstract System.Linq.Expressions.Expression VisitSqlUnary (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression sqlCastExpression);

protected abstract System.Linq.Expressions.Expression VisitSqlUnary (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression sqlUnaryExpression);

abstract member VisitSqlUnary : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression -> System.Linq.Expressions.Expression

abstract member VisitSqlUnary : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlUnaryExpression -> System.Linq.Expressions.Expression

Protected MustOverride Function VisitSqlUnary (sqlCastExpression As SqlUnaryExpression) As Expression

Protected MustOverride Function VisitSqlUnary (sqlUnaryExpression As SqlUnaryExpression) As Expression

参数

sqlCastExpressionsqlUnaryExpression: SqlUnaryExpression

返回

如果修改了该表达式或任何子表达式，则为修改后的表达式；否则返回原始表达式。

适用于