Determines whether the collection contains an element with the specified key.
DISPID (Dispatch ID):
For more information, see Contains in .NET Reference.
            
DISPID (Dispatch ID):
For more information, see Contains in .NET Reference.
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Public Function Contains( _ ByVal key As String _ ) As Boolean  | 
See Contains in .NET Reference.
For remarks, see Contains in .NET Reference.
For examples, see Contains in .NET Reference.