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RangeBase.OnValueChanged Method

Raises the ValueChanged routed event.

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

'Declaration
Protected Overridable Sub OnValueChanged ( _
	oldValue As Double, _
	newValue As Double _
)

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: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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