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RangeBase.OnValueChanged Method

Raises the ValueChanged routed event.

Namespace:  System.Windows.Controls.Primitives
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected virtual void OnValueChanged(
	double oldValue,
	double newValue
)

Parameters

oldValue
Type: System.Double
Old value of the Value property
newValue
Type: System.Double
New value of the Value property

Subclasses of the RangeBase can use this method to respond when the value property changes instead of overriding the FrameworkPropertyMetadata to provide a new PropertyChangedCallback function. For more information, see Dependency Property Callbacks and Validation.

The OnValueChanged method raises the ValueChanged event. When overriding OnValueChanged in a derived class, be sure to call the base class’s OnValueChanged method so that registered delegates receive the event.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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