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Expression.VisitChildren Method

Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible.

Namespace:  System.Linq.Expressions
Assemblies:   System.Core (in System.Core.dll)
  System.Linq.Expressions (in System.Linq.Expressions.dll)

protected internal virtual Expression VisitChildren(
	ExpressionVisitor visitor
)

Parameters

visitor
Type: System.Linq.Expressions.ExpressionVisitor

An instance of Func<T, TResult>.

Return Value

Type: System.Linq.Expressions.Expression
The expression being visited, or an expression which should replace it in the tree.

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.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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