Provides data about a change in value to a dependency property as reported by particular routed events, including the previous and current value of the property that changed.
System.EventArgs
System.Windows.RoutedEventArgs
System.Windows.RoutedPropertyChangedEventArgs<T>
Namespace: System.Windows
Assembly: System.Windows (in System.Windows.dll)
Public Class RoutedPropertyChangedEventArgs(Of T) _ Inherits RoutedEventArgs
public class RoutedPropertyChangedEventArgs<T> : RoutedEventArgs
Type Parameters
- T
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The type of the dependency property that has changed.
The RoutedPropertyChangedEventArgs<T> type exposes the following members.
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RoutedPropertyChangedEventArgs<T> | Initializes a new instance of the RoutedPropertyChangedEventArgs<T> class, with provided old and new values. |
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NewValue | Gets the new value of a property as reported by a property-changed event. |
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OldValue | Gets the previous value of the property as reported by a property-changed event. |
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OriginalSource | Gets a reference to the object that raised the event. (Inherited from RoutedEventArgs.) |
| Name | Description | |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
This is a generic class where the class is used for event data of different events. Different routed events can specify the type constraint of the generic to produce a type-specific event data class. Once the class is constrained, the OldValue and NewValue properties also reflect these type constraints. Therefore, you can use a common event data class for different property-changed events without requiring different delegates for each possible property type.
Silverlight
Supported in: 5, 4, 3Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.