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VisualStateManager.RaiseCurrentStateChanging Method

Raises the CurrentStateChanging event on the specified VisualStateGroup object.

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

protected void RaiseCurrentStateChanging(
	VisualStateGroup stateGroup,
	VisualState oldState,
	VisualState newState,
	FrameworkElement control,
	FrameworkElement stateGroupsRoot


Type: System.Windows.VisualStateGroup

The object that the CurrentStateChanging event occurred on.

Type: System.Windows.VisualState

The state that the control is transitioning from.

Type: System.Windows.VisualState

The state that the control is transitioning to.

Type: System.Windows.FrameworkElement

The control that is transitioning states.

Type: System.Windows.FrameworkElement

The root element that contains the VisualStateManager.


stateGroupsRoot is null.


newState is null.

When the VisualStateGroup is set on the ControlTemplate of a control, the control parameter is set to the control that owns ControlTemplate. When the VisualStateGroup is set on a FrameworkElement, control is null and you should use the stateGroupsRoot parameter.

Notes to Inheritors

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

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

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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