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PropertyChangedCallback Delegate


Represents the callback that is invoked when the effective property value of a dependency property changes.

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

type PropertyChangedCallback = 
    delegate of 
        d:DependencyObject *
        e:DependencyPropertyChangedEventArgs -> unit


Type: System.Windows.DependencyObject

The DependencyObject on which the property has changed value.

Type: System.Windows.DependencyPropertyChangedEventArgs

Event data that is issued by any event that tracks changes to the effective value of this property.

The following example registers a new dependency property, using the signature that specifies a PropertyChangedCallback. The PropertyChangedCallback is used to create a callback that changes an internal property whenever the public property changes.

.NET Framework
Available since 3.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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