Aligning controls on both left and right side in a stack panel in WPF

Question

I have the following code:

<DockPanel>
    <StackPanel DockPanel.Dock="Top" Orientation="Horizontal">
        <RadioButton Content="_Programs" 
                    IsChecked="{Binding Path=ProgramBanksSelected}" IsEnabled="{Binding Path=ProgramsEnabled}" Margin="8" />
        <StackPanel>
            <Label Content="Master" Height="28" Name="MasterFileStatus" VerticalContentAlignment="Center"/>
        </StackPanel>
    </StackPanel>
    ...

The radio button should be placed on the left side in the stack panel (I removed some buttons for not cluttering the example) and the label (which I put temporarily in a nested StackPanel) should be on the right side.

I tried already lots of combinations of alignments but I cannot get the label on the right side. What should I add to accomplish this?

Answer 1

Just do not use a StackPanel, StackPanels stack. They do, for obvious reasons, not allow alignment in the direction in which they stack. Use a Grid, with column definitions like so:

<Grid.ColumnDefinitions>
    <ColumnDefinition Width="Auto" />
    <ColumnDefinition Width="*" />
    <ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>