语言

QuerySqlGenerator.VisitLeftJoin(LeftJoinExpression) 方法

定义

为左联接生成 SQL。

protected override System.Linq.Expressions.Expression VisitLeftJoin(Microsoft.EntityFrameworkCore.Query.SqlExpressions.LeftJoinExpression leftJoinExpression);
protected virtual System.Linq.Expressions.Expression VisitLeftJoin(Microsoft.EntityFrameworkCore.Query.SqlExpressions.LeftJoinExpression leftJoinExpression);
override this.VisitLeftJoin : Microsoft.EntityFrameworkCore.Query.SqlExpressions.LeftJoinExpression -> System.Linq.Expressions.Expression
abstract member VisitLeftJoin : Microsoft.EntityFrameworkCore.Query.SqlExpressions.LeftJoinExpression -> System.Linq.Expressions.Expression
override this.VisitLeftJoin : Microsoft.EntityFrameworkCore.Query.SqlExpressions.LeftJoinExpression -> System.Linq.Expressions.Expression
Protected Overrides Function VisitLeftJoin (leftJoinExpression As LeftJoinExpression) As Expression
Protected Overridable Function VisitLeftJoin (leftJoinExpression As LeftJoinExpression) As Expression

参数

leftJoinExpression
LeftJoinExpression

LeftJoinExpression要为其生成 SQL。

返回

修改后的表达式(如果修改了该表达式或任何子表达式);否则,返回原始表达式。

适用于