Expression.VisitChildren Method (System.Linq.Expressions)

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Classic
Lightweight
ScriptFree
.NET Framework Class Library
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
Assembly:  System.Core (in System.Core.dll)
Syntax
Visual Basic
Protected Friend Overridable Function VisitChildren ( _
	visitor As ExpressionVisitor _
) As Expression
C#
protected internal virtual Expression VisitChildren(
	ExpressionVisitor visitor
)
Visual C++
protected public:
virtual Expression^ VisitChildren(
	ExpressionVisitor^ visitor
)
F#
abstract VisitChildren : 
        visitor:ExpressionVisitor -> Expression 
override VisitChildren : 
        visitor:ExpressionVisitor -> Expression

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.
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.

Version Information

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4
Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
See Also

Reference

Expression Class
System.Linq.Expressions Namespace