ExpressionVisitor.VisitBlock(BlockExpression) 方法

定义

访问 BlockExpression 的子级。Visits the children of the BlockExpression.

protected public:
 virtual System::Linq::Expressions::Expression ^ VisitBlock(System::Linq::Expressions::BlockExpression ^ node);
protected internal virtual System.Linq.Expressions.Expression VisitBlock (System.Linq.Expressions.BlockExpression node);
abstract member VisitBlock : System.Linq.Expressions.BlockExpression -> System.Linq.Expressions.Expression
override this.VisitBlock : System.Linq.Expressions.BlockExpression -> System.Linq.Expressions.Expression
Protected Friend Overridable Function VisitBlock (node As BlockExpression) As Expression

参数

node
BlockExpression

要访问的表达式。The expression to visit.

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。The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.

适用于