SortedDictionary<(Of <(TKey, TValue>)>).KeyCollection.ICollection<(Of <(TKey>)>).IsReadOnly Property

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

Gets a value indicating whether the ICollection<(Of <(T>)>) is read-only.

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

Syntax

Private ReadOnly Property IsReadOnly As Boolean
    Implements ICollection(Of TKey).IsReadOnly

bool ICollection<TKey>.IsReadOnly { get; }

Type: System..::.Boolean
true if the ICollection<(Of <(T>)>) is read-only; otherwise, false. In the default implementation of SortedDictionary<(Of <(TKey, TValue>)>)..::.KeyCollection, this property always returns false.

A collection that is read-only does not allow the addition, removal, or modification of elements after the collection is created.

Getting the value of this property is an O(1) operation.

Supported in: 8.1, 8.0