语言

QuerySqlGenerator.VisitColumn(ColumnExpression) 方法

定义

为列生成 SQL。

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

参数

columnExpression
ColumnExpression

ColumnExpression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