DependencyObject.ClearValue Method (DependencyProperty)

Clears the local value of a property. The property to be cleared is specified by a DependencyProperty identifier.

Namespace:  System.Windows
Assembly:  WindowsBase (in WindowsBase.dll)

public void ClearValue(
	DependencyProperty dp
)
You cannot use methods in XAML.

ExceptionCondition
InvalidOperationException

Attempted to call ClearValue on a sealed DependencyObject.

Clearing the property value by calling ClearValue does not necessarily give a dependency property the default value that is specified in the dependency property metadata. Clearing the property only specifically clears whatever local value may have been applied. For more information, see Dependency Property Value Precedence.

The following example iterates all properties that have local values set on an object, then calls ClearValue to clear the values of each such property.

void RestoreDefaultProperties(object sender, RoutedEventArgs e)
{
    UIElementCollection uic = Sandbox.Children;
    foreach (Shape uie in uic)
    {
        LocalValueEnumerator locallySetProperties = uie.GetLocalValueEnumerator();
        while (locallySetProperties.MoveNext())
        {
            DependencyProperty propertyToClear = locallySetProperties.Current.Property;
            if (!propertyToClear.ReadOnly) { uie.ClearValue(propertyToClear); }
        }
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0
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