PropertyChangedCallback Delegate (System.Windows)

PropertyChangedCallback Delegate

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This page is specific to

Microsoft Silverlight 3

Other versions are also available for the following:

.NET Framework Class Library for Silverlight

PropertyChangedCallback Delegate

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

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

Syntax

Visual Basic (Declaration)

Public Delegate Sub PropertyChangedCallback ( _
    d As DependencyObject, _
    e As DependencyPropertyChangedEventArgs _
)

Visual Basic (Usage)

Dim instance As New PropertyChangedCallback(AddressOf HandlerMethod)

public delegate void PropertyChangedCallback(
    DependencyObject d,
    DependencyPropertyChangedEventArgs e
)

Parameters

d: Type: System.Windows..::.DependencyObject
The DependencyObject on which the property has changed value.

e: Type: System.Windows..::.DependencyPropertyChangedEventArgs
Event data that is issued by any event that tracks changes to the effective value of this property.

Remarks

You implement callbacks based on this delegate to provide the property change behavior for a custom dependency property. You might use this callback to provide value constraints, or to initiate value changes in other properties that depend on the value of the property that is being changed.

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Reference

System.Windows Namespace

DependencyProperty