Expression.VisitChildren(ExpressionVisitor) Method
Definition
Important
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Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible.
protected public:
virtual System::Linq::Expressions::Expression ^ VisitChildren(System::Linq::Expressions::ExpressionVisitor ^ visitor);
protected internal virtual System.Linq.Expressions.Expression VisitChildren (System.Linq.Expressions.ExpressionVisitor visitor);
abstract member VisitChildren : System.Linq.Expressions.ExpressionVisitor -> System.Linq.Expressions.Expression
override this.VisitChildren : System.Linq.Expressions.ExpressionVisitor -> System.Linq.Expressions.Expression
Protected Friend Overridable Function VisitChildren (visitor As ExpressionVisitor) As Expression
Parameters
- visitor
- ExpressionVisitor
An instance of Func<T,TResult>.
Returns
The expression being visited, or an expression which should replace it in the tree.
Remarks
Override this method to provide logic to walk the node's children. A typical implementation will call visitor.Visit on each of its children, and if any of them change, should return a new copy of itself with the modified children.
Applies to
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