Question

I have following layout

<Grid x:Name="LayoutRoot" Background="Transparent">
    <Grid Height="100" Background="Wheat" Opacity="0.4">
        <StackPanel Orientation="Vertical" VerticalAlignment="Bottom">
            <Slider Orientation="Vertical" Height="170" HorizontalAlignment="Center" Background="White" />
            <Button Content="Btn" Width="100"/>
        </StackPanel>
    </Grid>
</Grid>

In this scenario Grid will clip rest of Slider which overflows Grid.
So I’m getting result like this

While I want to get result like this

So how can I force Slider to overflow Grid without clipping? Is it any alternatives solutions to this?
In fact I have more complicated layout so using Canvas instead of Grid is now welcome.

Answer 1

You can do this using a single Grid and playing with its childrens’ Grid.RowSpan and Grid.ColumnSpan properties.

<Grid x:Name="LayoutRoot"
      Background="Transparent">
  <Grid.RowDefinitions>
    <RowDefinition Height="*" />
    <RowDefinition Height="Auto" />
    <RowDefinition Height="Auto" />
    <RowDefinition Height="*" />
  </Grid.RowDefinitions>
  <Grid.ColumnDefinitions>
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="Auto" />
    <ColumnDefinition Width="*" />
  </Grid.ColumnDefinitions>

  <Rectangle Grid.Row="2"
             Grid.Column="0"
             Grid.ColumnSpan="3"
             Height="100"
             Fill="Wheat"
             Opacity="0.4" />

  <StackPanel Grid.Row="1"
              Grid.RowSpan="2"
              Grid.Column="1">
    <Slider Orientation="Vertical"
            Height="170"
            HorizontalAlignment="Center"
            Background="White" />
    <Button Content="Btn"
            Width="100" />
  </StackPanel>
</Grid>