Assembly: PresentationFramework (in PresentationFramework.dll)
Gets the VisualState that is currently applied to the control.
Gets a value that indicates whether this instance is currently sealed (read-only).(Inherited from DependencyObject.)
Gets or sets the name of the.
Gets the collection of mutually exclusive VisualState objects.
Gets the collection of VisualTransition objects.
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)
Re-evaluates the effective value for the specified dependency property(Inherited from DependencyObject.)
Returns the local value of a dependency property, if it exists. (Inherited from DependencyObject.)
Sets the value of a dependency property without changing its value source. (Inherited from DependencyObject.)
Sets the local value of a dependency property, specified by its dependency property identifier. (Inherited from DependencyObject.)
Returns a value that indicates whether serialization processes should serialize the value for the provided dependency property.(Inherited from DependencyObject.)
Returns a string that represents the current object.(Inherited from Object.)
Each VisualState objects. A VisualState contains a collection of Storyboard objects that specify how the control's appearance changes when the control is in a certain state. For example, a Button might have a slightly different appearance when it is pressed than when it is not pressed. Two states that the Button defines correspond to when it is pressed ("Pressed") and when it is not ("Normal").contains a collection of
You add VisualState to a control by setting the VisualStateManager.VisualStateGroups attached property on the control. You put states that are mutually exclusive to each other in the same . For example, the CheckBox has two objects. One contains the states, Normal, MouseOver, Pressed, and Disabled. The other contains the states, Checked, UnChecked, and Indeterminate. The CheckBox can be in states MouseOver and UnChecked at the same time, but it cannot be in the MouseOver and Pressed states at the same time.
Although you can add VisualState objects to any element, they are a particularly useful way to enable others to redefine the visual behavior of a Control. If you create a custom control that uses a ControlTemplate, you can specify which states that control can be in by adding a TemplateVisualStateAttribute on its class definition. Then anyone who creates a new ControlTemplate for your control can add VisualState objects to the template. The TemplateVisualStateAttribute enables designer tools, such as Expression Blend, to expose the control's states. States with the same TemplateVisualStateAttribute.GroupName belong in the same .
For more information about how to use ControlTemplate, see Customizing the Appearance of an Existing Control by Creating a ControlTemplate. For more information about how to create controls that use the VisualStateManager, see Creating a Control That Has a Customizable Appearance.objects in a
The following example creates a simple ControlTemplate for a Button that contains one Grid. It also contains a named CommonStates, which defines the MouseOver and Normal states. The also has a VisualTransition that specifies that it takes one half second for the Grid to change from green to red when the user moves the mouse pointer over the Button.
<ControlTemplate TargetType="Button"> <Grid > <VisualStateManager.VisualStateGroups> <VisualStateGroup x:Name="CommonStates"> <VisualStateGroup.Transitions> <!--Take one half second to trasition to the MouseOver state.--> <VisualTransition To="MouseOver" GeneratedDuration="0:0:0.5"/> </VisualStateGroup.Transitions> <VisualState x:Name="Normal" /> <!--Change the SolidColorBrush, ButtonBrush, to red when the mouse is over the button.--> <VisualState x:Name="MouseOver"> <Storyboard> <ColorAnimation Storyboard.TargetName="ButtonBrush" Storyboard.TargetProperty="Color" To="Red" /> </Storyboard> </VisualState> </VisualStateGroup> </VisualStateManager.VisualStateGroups> <Grid.Background> <SolidColorBrush x:Name="ButtonBrush" Color="Green"/> </Grid.Background> </Grid> </ControlTemplate>
Available since 4.0
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.