The collection.
The item.
AddIfNotContains<T> Method
Adds an item to a list if it does not already contain it
Syntax
[Extension()]
public static void AddIfNotContains<T>( 
   IList<T> collection,
   T item
)

Parameters

collection
The collection.
item
The item.

Type Parameters

T
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also