Dictionary<(Of <(TKey, TValue>)>).KeyCollection.ICollection<(Of <(TKey>)>).Remove Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Removes the first occurrence of a specific object from the ICollection<(Of <(T>)>). This implementation always throws NotSupportedException.

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

Syntax

Private Function Remove ( _
    item As TKey _
) As Boolean Implements ICollection(Of TKey).Remove

bool ICollection<TKey>.Remove(
    TKey item
)

Type: System..::.Boolean
true if item was successfully removed from the ICollection<(Of <(T>)>); otherwise, false. This method also returns false if item was not found in the original ICollection<(Of <(T>)>).

Exception	Condition
NotSupportedException	Always thrown.

Implementations can vary in how they determine equality of objects; for example, List<(Of <(T>)>) uses Comparer<(Of <(T>)>)..::.Default, whereas, Dictionary<(Of <(TKey, TValue>)>) allows the user to specify the IComparer<(Of <(T>)>) implementation to use for comparing keys.