Thumb Syles and Templates
This topic describes the styles and templates for the Thumb control. You can modify the default ControlTemplate to give the control a unique appearance. For more information, see Customizing the Appearance of an Existing Control by Creating a ControlTemplate.
The Thumb control does not have any named parts.
The following table lists the visual states for the Thumb control.
VisualState Name | VisualStateGroup Name | Description |
Normal | CommonStates | The default state. |
MouseOver | CommonStates | The mouse pointer is positioned over the control. |
Pressed | CommonStates | The control is pressed. |
Disabled | CommonStates | The control is disabled. |
Focused | FocusStates | The control has focus. |
Unfocused | FocusStates | The control does not have focus. |
Valid | ValidationStates | The control uses the Validation class and the Validation::HasError attached property is false. |
InvalidFocused | ValidationStates | The Validation::HasError attached property is true has the control has focus. |
InvalidUnfocused | ValidationStates | The Validation::HasError attached property is true has the control does not have focus. |
The following example shows how to define a ControlTemplate for the Thumb control.
<Style x:Key="SliderThumbStyle" TargetType="{x:Type Thumb}"> <Setter Property="SnapsToDevicePixels" Value="true" /> <Setter Property="OverridesDefaultStyle" Value="true" /> <Setter Property="Height" Value="14" /> <Setter Property="Width" Value="14" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Thumb}"> <Ellipse x:Name="Ellipse" StrokeThickness="1"> <Ellipse.Stroke> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStopCollection> <GradientStop Color="{DynamicResource BorderLightColor}" Offset="0.0" /> <GradientStop Color="{DynamicResource BorderDarkColor}" Offset="1.0" /> </GradientStopCollection> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Ellipse.Stroke> <Ellipse.Fill> <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="{DynamicResource ControlMediumColor}" Offset="1" /> <GradientStop Color="{DynamicResource ControlLightColor}" /> </LinearGradientBrush> </Ellipse.Fill> <VisualStateManager.VisualStateGroups> <VisualStateGroup x:Name="CommonStates"> <VisualState x:Name="Normal" /> <VisualState x:Name="MouseOver"> <Storyboard> <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill). (GradientBrush.GradientStops)[0].(GradientStop.Color)" Storyboard.TargetName="Ellipse"> <EasingColorKeyFrame KeyTime="0" Value="{StaticResource ControlMouseOverColor}" /> </ColorAnimationUsingKeyFrames> </Storyboard> </VisualState> <VisualState x:Name="Pressed"> <Storyboard> <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill). (GradientBrush.GradientStops)[0].(GradientStop.Color)" Storyboard.TargetName="Ellipse"> <EasingColorKeyFrame KeyTime="0" Value="{StaticResource ControlPressedColor}" /> </ColorAnimationUsingKeyFrames> </Storyboard> </VisualState> <VisualState x:Name="Disabled"> <Storyboard> <ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill). (GradientBrush.GradientStops)[0].(GradientStop.Color)" Storyboard.TargetName="Ellipse"> <EasingColorKeyFrame KeyTime="0" Value="{StaticResource DisabledControlDarkColor}" /> </ColorAnimationUsingKeyFrames> </Storyboard> </VisualState> </VisualStateGroup> </VisualStateManager.VisualStateGroups> </Ellipse> </ControlTemplate> </Setter.Value> </Setter> </Style>
The preceding example uses one or more of the following resources.
<!--Control colors.--> <Color x:Key="WindowColor">#FFE8EDF9</Color> <Color x:Key="ContentAreaColorLight">#FFC5CBF9</Color> <Color x:Key="ContentAreaColorDark">#FF7381F9</Color> <Color x:Key="DisabledControlLightColor">#FFE8EDF9</Color> <Color x:Key="DisabledControlDarkColor">#FFC5CBF9</Color> <Color x:Key="DisabledForegroundColor">#FF888888</Color> <Color x:Key="SelectedBackgroundColor">#FFC5CBF9</Color> <Color x:Key="SelectedUnfocusedColor">#FFDDDDDD</Color> <Color x:Key="ControlLightColor">White</Color> <Color x:Key="ControlMediumColor">#FF7381F9</Color> <Color x:Key="ControlDarkColor">#FF211AA9</Color> <Color x:Key="ControlMouseOverColor">#FF3843C4</Color> <Color x:Key="ControlPressedColor">#FF211AA9</Color> <Color x:Key="GlyphColor">#FF444444</Color> <Color x:Key="GlyphMouseOver">sc#1, 0.004391443, 0.002428215, 0.242281124</Color> <!--Border colors--> <Color x:Key="BorderLightColor">#FFCCCCCC</Color> <Color x:Key="BorderMediumColor">#FF888888</Color> <Color x:Key="BorderDarkColor">#FF444444</Color> <Color x:Key="PressedBorderLightColor">#FF888888</Color> <Color x:Key="PressedBorderDarkColor">#FF444444</Color> <Color x:Key="DisabledBorderLightColor">#FFAAAAAA</Color> <Color x:Key="DisabledBorderDarkColor">#FF888888</Color> <Color x:Key="DefaultBorderBrushDarkColor">Black</Color> <!--Control-specific resources.--> <Color x:Key="HeaderTopColor">#FFC5CBF9</Color> <Color x:Key="DatagridCurrentCellBorderColor">Black</Color> <Color x:Key="SliderTrackDarkColor">#FFC5CBF9</Color> <Color x:Key="NavButtonFrameColor">#FF3843C4</Color> <LinearGradientBrush x:Key="MenuPopupBrush" EndPoint="0.5,1" StartPoint="0.5,0"> <GradientStop Color="{DynamicResource ControlLightColor}" Offset="0" /> <GradientStop Color="{DynamicResource ControlMediumColor}" Offset="0.5" /> <GradientStop Color="{DynamicResource ControlLightColor}" Offset="1" /> </LinearGradientBrush> <LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill" StartPoint="0,0" EndPoint="1,0"> <LinearGradientBrush.GradientStops> <GradientStopCollection> <GradientStop Color="#000000FF" Offset="0" /> <GradientStop Color="#600000FF" Offset="0.4" /> <GradientStop Color="#600000FF" Offset="0.6" /> <GradientStop Color="#000000FF" Offset="1" /> </GradientStopCollection> </LinearGradientBrush.GradientStops> </LinearGradientBrush>
For the complete sample, see Styling with ControlTemplates Sample.