PropertyChangedCallback Delegate
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Represents the callback that is invoked when the effective property value of a dependency property changes.
public delegate void PropertyChangedCallback(DependencyObject ^ d, DependencyPropertyChangedEventArgs ^ e);/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.Guid(1520405029, 53570, 17572, 130, 49, 253, 103, 103, 36, 242, 155)]
class PropertyChangedCallback : MulticastDelegate[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.Guid(1520405029, 53570, 17572, 130, 49, 253, 103, 103, 36, 242, 155)]
public delegate void PropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e);Public Delegate Sub PropertyChangedCallback(d As DependencyObject, e As DependencyPropertyChangedEventArgs)The DependencyObject on which the property has changed value.
Event data that is issued by any event that tracks changes to the effective value of this property.
- Attributes
| Device family |
Windows 10 (introduced in 10.0.10240.0)
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| API contract |
Windows.Foundation.UniversalApiContract (introduced in v1.0)
|
You implement callbacks based on this delegate to provide the property-changed 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. For more info see Custom dependency properties.
| Product | Versions |
|---|---|
| WinRT | Build 10240, Build 10586, Build 14383, Build 15063, Build 16299, Build 17134, Build 17763, Build 18362, Build 19041, Build 20348, Build 22000, Build 22621, Build 26100 |