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ReadOnlyCollection<T>.IList.Add Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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

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

Syntax

'Declaration
Private Function Add ( _
    value As Object _
) As Integer Implements IList.Add

int IList.Add(
    Object value
)

Parameters

Return Value

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

Implements

IList.Add(Object)

Exceptions

Exception Condition
NotSupportedException

Always thrown.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.