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

Article
11/23/2015
2 minutes to read

[ 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 IDictionary is read-only.

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

Syntax

Private ReadOnly Property IsReadOnly As Boolean
    Implements IDictionary.IsReadOnly

bool IDictionary.IsReadOnly { get; }

Property Value

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

Implements

IDictionary..::.IsReadOnly

Remarks

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

A collection that is read-only is simply a collection with a wrapper that prevents modifying the collection; therefore, if changes are made to the underlying collection, the read-only collection reflects those changes.

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

Version Information

Windows Phone OS

Supported in: 8.1, 8.0