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ElementInformation.IsLocked Property

Gets a value that indicates whether the associated ConfigurationElement object cannot be modified.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

public bool IsLocked { get; }

Property Value

Type: System.Boolean
true if the associated ConfigurationElement object cannot be modified; otherwise, false.

The IsLocked property returns true when the related element is locked by the AllowOverride, AllowDefinition, or LockAllAttributesExcept property.

The following example shows how to use the IsLocked property.

static public void IsElementLocked()
    // Get the current configuration file.
    System.Configuration.Configuration config =

    // Get the section.
    UrlsSection section =

    // Get the element.
    UrlConfigElement url = section.Simple;

    bool isLocked =
    Console.WriteLine("Url element is locked? {0}",


.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, 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.

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