Dictionary<TKey, TValue>.IDictionary.IsReadOnly Property
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Gets a value indicating whether the IDictionary is read-only.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
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 Dictionary<TKey, TValue>, this property always returns false.
Implements
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
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.