Control. Tab Page Collection. Index OfKey(String) Method
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Returns the index of the first occurrence of the TabPage with the specified key.
public: virtual int IndexOfKey(System::String ^ key);
public virtual int IndexOfKey (string key);
abstract member IndexOfKey : string -> int override this.IndexOfKey : string -> int
Public Overridable Function IndexOfKey (key As String) As Integer
The name of the tab page to find in the collection.
The zero-based index of the first occurrence of a tab page 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 TabPage in the TabControl.TabPageCollection. The key comparison is not case-sensitive. If the
key parameter is
null or an empty string, IndexOfKey returns -1.