| Visual Basic (Usage) |  Copy Code | 
|---|---|
Dim instance As CollectionBase(Of T) Dim value As T Dim value As Integer value = instance.IndexOf(value)  | |
Parameters
- value
 - The T to locate in the collection.
 
Return Value
The index in the collection of the specified object, if found; otherwise, -1.Target Platforms: Windows 2000 Professional (SP4), Windows 2000 Server, Windows 2003 Server (SP1), Windows 2008, Windows XP (SP2), Windows Vista, Windows 7, Windows 8