ReadOnlyCollection<'T>.ICollection<'T>.Add Method ('T)


Adds an item to the ICollection<'T>. This implementation always throws NotSupportedException.

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

private abstract Add : 
        value:'T -> unit
private override Add : 
        value:'T -> unit


Type: T

The object to add to the ICollection<'T>.

Exception Condition

Always thrown.

This member is an explicit interface member implementation. It can be used only when the ReadOnlyCollection<'T> instance is cast to an ICollection<'T> interface.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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