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ReadOnlyCollection(T).IList.Add Method

Adds an item to the IList. This implementation always throws NotSupportedException.

Namespace:  System.Collections.ObjectModel
Assembly:  mscorlib (in mscorlib.dll)

private abstract Add : 
        value:Object -> int 
private override Add : 
        value:Object -> int 

Parameters

value
Type: System.Object
The Object to add to the IList.

Return Value

Type: System.Int32
The position into which the new element was inserted.

Implements

IList.Add(Object)

ExceptionCondition
NotSupportedException

Always thrown.

This member is an explicit interface member implementation. It can be used only when the ReadOnlyCollection(T) instance is cast to an IList interface.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

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