Node Collection. IList. Contains(Object) Method
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);
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
The object to find in the collection.
node is a member of the collection; otherwise,
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.