ExpressionVisitor.VisitUnary(UnaryExpression) 方法
定义
访问 UnaryExpression 的子级。Visits the children of the UnaryExpression.
protected public:
virtual System::Linq::Expressions::Expression ^ VisitUnary(System::Linq::Expressions::UnaryExpression ^ node);
protected internal virtual System.Linq.Expressions.Expression VisitUnary (System.Linq.Expressions.UnaryExpression node);
abstract member VisitUnary : System.Linq.Expressions.UnaryExpression -> System.Linq.Expressions.Expression
override this.VisitUnary : System.Linq.Expressions.UnaryExpression -> System.Linq.Expressions.Expression
Protected Friend Overridable Function VisitUnary (node As UnaryExpression) As Expression
参数
- node
- UnaryExpression
要访问的表达式。The expression to visit.
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。The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.