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LocalValueEnumerator Structure

Provides enumeration support for the local values of any dependency properties that exist on a DependencyObject.

Namespace: System.Windows
Assembly: WindowsBase (in windowsbase.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public value class LocalValueEnumerator : IEnumerator
public final class LocalValueEnumerator extends ValueType implements IEnumerator
You cannot use this managed structure in XAML.

A local value is a value for a dependency property that was set directly on a dependency property, by calling SetValue, or more typically by using the set accessor of a CLR property wrapper that calls SetValue internally. Examples of other property system determinants that are not local values are values set through styles, or dependency property default values. For details, see Dependency Property Value Precedence.

A LocalValueEnumerator is returned by the GetLocalValueEnumerator method and implements the IEnumerator interface. A public LocalValueEnumerator constructor does not exist; therefore, you must call GetLocalValueEnumerator to obtain an instance of this class.

Do not modify local values (by calling SetValue or ClearValue) while enumerating local values. If you change or clear the property values based on properties that are returned by the enumerator, the change or clear operations do not invalidate the enumerator collection, as is the case for many IEnumerator implementations. Also, the enumerator view is a snapshot. A change to the collection is not guaranteed to be thread safe, and no lock is enforced. Other threads still have free access to the local valuesfrom a context other than the enumerator.

Use this type if you have operations in your class where it is important to know whether a property's value came from a local value. For example, use this type in an OnPropertyChanged implementation, or where you want to query the metadata on all locally set properties.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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