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Dictionary<TKey, TValue>.KeyCollection.ICollection<TKey>.Add Method

Adds an item to the ICollection<T>. This implementation always throws NotSupportedException.

Namespace:  System.Collections.Generic
Assemblies:   System.Collections (in System.Collections.dll)
  mscorlib (in mscorlib.dll)

void ICollection<TKey>.Add(
	TKey item
)

Parameters

item
Type: TKey

The object to add to the ICollection<T>.

Implements

ICollection<T>.Add(T)

ExceptionCondition
NotSupportedException

Always thrown.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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