TreeNodeCollection.IList.Contains(Object) Method

Reference

Definition

Namespace:: System.Windows.Forms

Assembly:: System.Windows.Forms.dll

Source:: TreeNodeCollection.cs

Source:: TreeNodeCollection.cs

Source:: TreeNodeCollection.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Determines whether the specified tree node is a member of the collection.

 virtual bool System.Collections.IList.Contains(System::Object ^ node) = System::Collections::IList::Contains;

bool IList.Contains(object node);

bool IList.Contains(object? node);

abstract member System.Collections.IList.Contains : obj -> bool
override this.System.Collections.IList.Contains : obj -> bool

Function Contains (node As Object) As Boolean Implements IList.Contains

Parameters

node: Object

The object to find in the collection.

Returns

Boolean

true if node is a member of the collection; otherwise, false.

Implements

Contains(Object)

Remarks

If node is not a TreeNode, the IList.Contains method returns false. Therefore, you cannot pass in a string to determine if the collection contains a node that has the value of the string as its Text property.

Applies to

Product	Versions
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

Share via