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DependencyObject.ClearValue 메서드 (DependencyProperty)

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

네임스페이스: System.Windows
어셈블리: WindowsBase(windowsbase.dll)

public void ClearValue (
	DependencyProperty dp
)
public void ClearValue (
	DependencyProperty dp
)
public function ClearValue (
	dp : DependencyProperty
)
XAML에서 메서드를 사용할 수 없습니다.

매개 변수

dp

The dependency property to be cleared, identified by a DependencyProperty object reference.

예외 형식조건

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; it 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 = (DependencyProperty)locallySetProperties.Current.Property;
            if (!propertyToClear.ReadOnly) { uie.ClearValue(propertyToClear); }
        }
    }
}

Microsoft .NET Framework 3.0은 Windows Vista, Microsoft Windows XP SP2 및 Windows Server 2003 SP1에서 지원됩니다.

.NET Framework

3.0에서 지원
표시: