通过

QuerySqlGenerator.VisitExists(ExistsExpression) 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

访问 exists 表达式的子级。

protected override System.Linq.Expressions.Expression VisitExists (Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression existsExpression);
protected override sealed System.Linq.Expressions.Expression VisitExists (Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression existsExpression);
override this.VisitExists : Microsoft.EntityFrameworkCore.Query.SqlExpressions.ExistsExpression -> System.Linq.Expressions.Expression
Protected Overrides Function VisitExists (existsExpression As ExistsExpression) As Expression
Protected Overrides NotOverridable Function VisitExists (existsExpression As ExistsExpression) As Expression

参数

existsExpression
ExistsExpression

要访问的表达式。

返回

Expression

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