Wednesday, June 9, 2010

ScrollViewer Templates

 

Used in the resources, <UserControl.Resources> / <Window.Resources>, to allow scrollbars to be positioned differently

i.e. <ScrollViewer Style="{StaticResource ResourceKey=ScrollViewer_VerticalScrollBarRight_HorizontalScrollBarBottom}">

 

<UserControl.Resources>

<!-- ScrollViewer with VerticalScrollBar on the Left and HorizontalScrollBar at the Bottom -->
<Style x:Key="ScrollViewer_VerticalScrollBarLeft_HorizontalScrollBarBottom" TargetType="{x:Type ScrollViewer}">
    <Setter Property="OverridesDefaultStyle" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ScrollViewer}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>

                    <ScrollContentPresenter Grid.Column="1"/>

                    <ScrollBar Name="PART_VerticalScrollBar"
                               Grid.Row="0"
                               Grid.Column="0"
                               Value="{TemplateBinding VerticalOffset}"
                               Maximum="{TemplateBinding ScrollableHeight}"
                               ViewportSize="{TemplateBinding ViewportHeight}"
                               Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                    <ScrollBar Name="PART_HorizontalScrollBar"
                               Orientation="Horizontal"
                               Grid.Row="1"
                               Grid.Column="1"
                               Value="{TemplateBinding HorizontalOffset}"
                               Maximum="{TemplateBinding ScrollableWidth}"
                               ViewportSize="{TemplateBinding ViewportWidth}"
                               Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- ScrollViewer with VerticalScrollBar on the Right and HorizontalScrollBar at the Bottom -->
<Style x:Key="ScrollViewer_VerticalScrollBarRight_HorizontalScrollBarBottom" TargetType="{x:Type ScrollViewer}">
    <Setter Property="OverridesDefaultStyle" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ScrollViewer}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition/>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition/>
                        <RowDefinition Height="Auto"/>
                    </Grid.RowDefinitions>

                    <ScrollContentPresenter Grid.Column="0"/>

                    <ScrollBar Name="PART_VerticalScrollBar"
                               Grid.Row="0"
                               Grid.Column="1"
                               Value="{TemplateBinding VerticalOffset}"
                               Maximum="{TemplateBinding ScrollableHeight}"
                               ViewportSize="{TemplateBinding ViewportHeight}"
                               Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                    <ScrollBar Name="PART_HorizontalScrollBar"
                               Orientation="Horizontal"
                               Grid.Row="1"
                               Grid.Column="0"
                               Value="{TemplateBinding HorizontalOffset}"
                               Maximum="{TemplateBinding ScrollableWidth}"
                               ViewportSize="{TemplateBinding ViewportWidth}"
                               Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- ScrollViewer with VerticalScrollBar on the Left and HorizontalScrollBar at the Top -->
<Style x:Key="ScrollViewer_VerticalScrollBarLeft_HorizontalScrollBarTop" TargetType="{x:Type ScrollViewer}">
    <Setter Property="OverridesDefaultStyle" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ScrollViewer}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition/>
                    </Grid.RowDefinitions>

                    <ScrollContentPresenter Grid.Column="1" Grid.Row="1"/>

                    <ScrollBar Name="PART_VerticalScrollBar"
                               Grid.Row="1"
                               Grid.Column="0"
                               Value="{TemplateBinding VerticalOffset}"
                               Maximum="{TemplateBinding ScrollableHeight}"
                               ViewportSize="{TemplateBinding ViewportHeight}"
                               Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                    <ScrollBar Name="PART_HorizontalScrollBar"
                               Orientation="Horizontal"
                               Grid.Row="0"
                               Grid.Column="1"
                               Value="{TemplateBinding HorizontalOffset}"
                               Maximum="{TemplateBinding ScrollableWidth}"
                               ViewportSize="{TemplateBinding ViewportWidth}"
                               Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- ScrollViewer with VerticalScrollBar on the Right and HorizontalScrollBar at the Top -->
<Style x:Key="ScrollViewer_VerticalScrollBarRight_HorizontalScrollBarTop" TargetType="{x:Type ScrollViewer}">
    <Setter Property="OverridesDefaultStyle" Value="True"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type ScrollViewer}">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition/>
                        <ColumnDefinition Width="Auto"/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition/>
                    </Grid.RowDefinitions>

                    <ScrollContentPresenter Grid.Column="0" Grid.Row="1"/>

                    <ScrollBar Name="PART_VerticalScrollBar"
                               Grid.Row="1"
                               Grid.Column="1"
                               Value="{TemplateBinding VerticalOffset}"
                               Maximum="{TemplateBinding ScrollableHeight}"
                               ViewportSize="{TemplateBinding ViewportHeight}"
                               Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                    <ScrollBar Name="PART_HorizontalScrollBar"
                               Orientation="Horizontal"
                               Grid.Row="0"
                               Grid.Column="0"
                               Value="{TemplateBinding HorizontalOffset}"
                               Maximum="{TemplateBinding ScrollableWidth}"
                               ViewportSize="{TemplateBinding ViewportWidth}"
                               Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

</UserControl.Resources>

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