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IList.Add Method

.NET Framework 4.5

Adds an item to the IList.

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

abstract 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, or -1 to indicate that the item was not inserted into the collection.

Exceptions

Exception	Condition
NotSupportedException	The IList is read-only. -or- The IList has a fixed size.

Exception

Condition

NotSupportedException

The IList is read-only.

-or-

The IList has a fixed size.

Examples

The following example demonstrates the implementation of the IList interface to create a simple, fixed-size list. This code is part of a larger example for the IList interface.

No code example is currently available or this language may not be supported.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

IList Interface

System.Collections Namespace

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