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RoutedPropertyChangedEventArgs<T>.OldValue Property

Definition

Namespace:
System.Windows
Assembly:
PresentationFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets the previous value of the property as reported by a property changed event.

public:
 property T OldValue { T get(); };
public T OldValue { get; }
member this.OldValue : 'T
Public ReadOnly Property OldValue As T

Property Value

T

The generic value. In a practical implementation of the RoutedPropertyChangedEventArgs<T>, the generic type of this property is replaced with the constrained type of the implementation.

Remarks

The value and type constraint of this property will be established by the RoutedPropertyChangedEventArgs<T> constructor's type arguments.

Applies to

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