ImageList.ImageCollection.IndexOfKey(String) Method
Definition
Important
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Determines the index of the first occurrence of an image with the specified key in the collection.
public:
int IndexOfKey(System::String ^ key);public int IndexOfKey (string key);member this.IndexOfKey : string -> intPublic Function IndexOfKey (key As String) As IntegerParameters
- key
- String
The key of the image to retrieve the index for.
Returns
The zero-based index of the first occurrence of an image with the specified key in the collection, if found; otherwise, -1.
Remarks
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 of an image corresponds to its key in the ImageList.ImageCollection. The key comparison is not case-sensitive. If the key parameter is null or an empty string, the IndexOfKey method returns -1.
