List(T).IList.IsReadOnly Property (System.Collections.Generic)

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.NET Framework Class Library

ListTIListIsReadOnly Property

Gets a value indicating whether the IList is read-only.

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

Syntax

Private ReadOnly Property IsReadOnly As [%$TOPIC/bb346454_en-us_VS_110_2_0_0_0_0%] 
	Implements [%$TOPIC/bb346454_en-us_VS_110_2_0_0_0_1%].[%$TOPIC/bb346454_en-us_VS_110_2_0_0_0_2%]

[%$TOPIC/bb346454_en-us_VS_110_2_0_1_0_0%] [%$TOPIC/bb346454_en-us_VS_110_2_0_1_0_1%].[%$TOPIC/bb346454_en-us_VS_110_2_0_1_0_2%] { get; }

private:
virtual property [%$TOPIC/bb346454_en-us_VS_110_2_0_2_0_0%] IsReadOnly {
	[%$TOPIC/bb346454_en-us_VS_110_2_0_2_0_1%] get () sealed = [%$TOPIC/bb346454_en-us_VS_110_2_0_2_0_2%]::[%$TOPIC/bb346454_en-us_VS_110_2_0_2_0_3%]::get;
}

private abstract IsReadOnly : [%$TOPIC/bb346454_en-us_VS_110_2_0_3_0_0%] with get 
private override IsReadOnly : [%$TOPIC/bb346454_en-us_VS_110_2_0_3_0_1%] with get

Property Value

Type: SystemBoolean
true if the IList is read-only; otherwise, false. In the default implementation of ListT, this property always returns false.

Implements

IListIsReadOnly

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.

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

Version Information

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

ListT Class

System.Collections.Generic Namespace