ReadOnlyStringCollection.Contains(String) Method    
Definition
Important
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Determines if the specified String object is in this collection.
public:
 bool Contains(System::String ^ value);
	public bool Contains(string value);
	member this.Contains : string -> bool
	Public Function Contains (value As String) As Boolean
	Parameters
Returns
true if the String object is in this collection, otherwise, false.
Exceptions
The value parameter is null.