TreeNodeCollection.ContainsKey(String) Method
Definition
Important
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Determines whether the collection contains a tree node with the specified key.
public:
virtual bool ContainsKey(System::String ^ key);public virtual bool ContainsKey (string key);public virtual bool ContainsKey (string? key);abstract member ContainsKey : string -> bool
override this.ContainsKey : string -> boolPublic Overridable Function ContainsKey (key As String) As BooleanParameters
Returns
true to indicate the collection contains a TreeNode with the specified key; otherwise, false.
Remarks
The Name property corresponds to the key for a TreeNode in the TreeNodeCollection.
The key comparison is not case-sensitive. If the key parameter is null or an empty string, the Item[] property returns false.
Applies to
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