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GridSplitter Styles and Templates

Silverlight

This topic describes the styles and templates for the GridSplitter 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 Using a ControlTemplate.

The following table lists the named parts for the GridSplitter control.

Part

Type

Description

HorizontalTemplate

Grid

Represents a horizontal GridSplitter.

VerticalTemplate

Grid

Represents a vertical GridSplitter.

The following table lists the visual states for the GridSplitter control.

GridSplitter VisualState Name

VisualStateGroupName

Description

Normal

CommonStates

The default state.

MouseOver

CommonStates

The state that is triggered when the mouse pointer is over the GridSplitter.

Disabled

CommonStates

The state that is triggered when the GridSplitter is disabled.

Focused

FocusStates

The control has focus.

Unfocused

FocusStates

The control does not have focus.

The following table lists the Style properties of the GridSplitter control. You must set the TargetType property when you create a Style.

Property Name

Target Type

Description

PreviewStyle

Control

The style applied to the control that displays the preview.

The following example shows how to add a custom style as a StaticResource. For more information, see Customizing the Appearance of an Existing Control by Using a ControlTemplate. In this example, the StaticResource refers to an x:Key attribute value that you must add to the Style element when you modify it for your project.


<GridSplitter x:Name="gridSplitter1"
    Style="{StaticResource newGridSplitterStyle}" />


The following shows the XML namespace mappings that you have to specify when you work with styles and templates.

<!-- XML Namespace mappings. -->
xmlns:vsm="clr-namespace:System.Windows;assembly=System.Windows"
xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"
Important noteImportant Note:

The default templates for controls in Silverlight 4 still use the Silverlight 3-style prefixes, such as controls: and data: instead of sdk:. This is because the default control templates support Silverlight 3 and Silverlight 4 simultaneously. For more information, see Prefixes and Mappings for Silverlight Libraries.

NoteNote:

The default templates still specify the vsm: XML namespace mapping for the VisualStateManager element for legacy reasons. You can however, use the VisualStateManager element without specifying the vsm: mapping.

The following XAML shows the default style and template for the GridSplitter control.


<Style TargetType="controls:GridSplitter">
    <Setter Property="Background" Value="#FFFFFFFF" />
    <Setter Property="IsTabStop" Value="true" />
    <Setter Property="HorizontalAlignment" Value="Right" />
    <Setter Property="PreviewStyle">
        <Setter.Value>
            <Style TargetType="Control">
                <Setter Property="Background" Value="#FF868686" />
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="Control">
                            <Grid x:Name="Root" Opacity=".5">

                                <!-- Background -->
                                <Rectangle Fill="{TemplateBinding Background}" />

                                <!-- Horizontal Template -->
                                <Grid x:Name="HorizontalTemplate" Height="6">
                                    <!-- Just show the faint gray grid splitter rectangle with no other details -->
                                </Grid>

                                <!-- Vertical Template -->
                                <Grid x:Name="VerticalTemplate" Visibility="Collapsed" Width="6">
                                    <!-- Just show the faint gray grid splitter rectangle with no other details -->
                                </Grid>

                            </Grid>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>
        </Setter.Value>
    </Setter>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="controls:GridSplitter">
                <Grid x:Name="Root" IsHitTestVisible="{TemplateBinding IsEnabled}">

                    <!-- VSM -->
                    <vsm:VisualStateManager.VisualStateGroups>
                        <vsm:VisualStateGroup x:Name="CommonStates">
                            <vsm:VisualState x:Name="Normal" />
                            <vsm:VisualState x:Name="MouseOver" />
                            <vsm:VisualState x:Name="Disabled">
                                <Storyboard>
                                    <DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="0.5" Duration="0" />
                                </Storyboard>
                            </vsm:VisualState>
                        </vsm:VisualStateGroup>
                        <vsm:VisualStateGroup x:Name="FocusStates">
                            <vsm:VisualStateGroup.Transitions>
                                <vsm:VisualTransition GeneratedDuration="0" />
                            </vsm:VisualStateGroup.Transitions>
                            <vsm:VisualState x:Name="Unfocused" />
                            <vsm:VisualState x:Name="Focused">
                                <Storyboard>
                                    <DoubleAnimation Storyboard.TargetName="FocusVisual" Storyboard.TargetProperty="Opacity" To="1" Duration="0" />
                                </Storyboard>
                            </vsm:VisualState>
                        </vsm:VisualStateGroup>
                    </vsm:VisualStateManager.VisualStateGroups>

                    <!-- Background -->
                    <Rectangle Fill="{TemplateBinding Background}" StrokeThickness="0" />

                    <!-- Horizontal Template -->
                    <Grid x:Name="HorizontalTemplate" Height="10">
                        <StackPanel Height="6" VerticalAlignment="Center">
                            <Rectangle Height="1" Margin="1" Width="10" StrokeThickness="0" Fill="#FF868686" />
                            <Rectangle Height="1" Margin="1" Width="10" StrokeThickness="0" Fill="#FF868686" />
                        </StackPanel>
                    </Grid>

                    <!-- Vertical Template -->
                    <Grid x:Name="VerticalTemplate" Visibility="Collapsed" Width="10">
                        <StackPanel Width="6" VerticalAlignment="Center" Orientation="Horizontal">
                            <Rectangle Width="1" Margin="1" Height="10" StrokeThickness="0" Fill="#FF868686" />
                            <Rectangle Width="1" Margin="1" Height="10" StrokeThickness="0" Fill="#FF868686" />
                        </StackPanel>
                    </Grid>

                    <!-- Focus Visual -->
                    <Rectangle x:Name="FocusVisual" Stroke="#FF6DBDD1" StrokeThickness="1" Opacity="0" IsHitTestVisible="false" />
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>


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