TreeNodeCollection.IndexOfKey(String) Method
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Returns the index of the first occurrence of a tree node with the specified key.
public:
virtual int IndexOfKey(System::String ^ key);public virtual int IndexOfKey(string key);public virtual int IndexOfKey(string? key);abstract member IndexOfKey : string -> int
override this.IndexOfKey : string -> intPublic Overridable Function IndexOfKey (key As String) As Integer- key
- String
The name of the tree node to search for.
The zero-based index of the first occurrence of a tree node with the specified key, if found; otherwise, -1.
If IndexOfKey is called successively, the last returned index will be checked for a key match first, and if there is no match, the search starts at the beginning of the collection.
The Name property corresponds to the key for a TreeNode in the TreeNodeCollection.
The key comparison is not case-sensitive. If key is null or an empty string, the Item[] property returns -1.
| Product | Versions |
|---|---|
| .NET Framework | 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 |
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