#444 – Children of DockPanel Don’t Always Have to be Stretched

Normally, when you dock a child element in a DockPanel to one of the sides, it is stretched to fit the entire length or height of that side.

    <DockPanel>
        <Button Content="1st (Top)" DockPanel.Dock="Top" />
        <Button Content="2nd (Left)" DockPanel.Dock="Left" />
        <Button Content="3rd (Top)" DockPanel.Dock="Top" />
        <Label Content="4th (Right)" DockPanel.Dock="Right" Background="DarkKhaki"/>
        <Label Content="5th, fills remaining space" Background="Khaki"/>
    </DockPanel>

You can, however, use HorizontalAlignment (when docked to Top or Bottom) or VerticalAlignment (when docked to Left or Right) to have the control autosize to fit its content.

    <DockPanel>
        <Button Content="1st (Top/Center)" DockPanel.Dock="Top" HorizontalAlignment="Center"/>
        <Button Content="2nd (Left/Bottom)" DockPanel.Dock="Left" VerticalAlignment="Bottom"/>
        <Button Content="3rd (Top/Right)" DockPanel.Dock="Top" HorizontalAlignment="Right"/>
        <Label Content="4th (Right/Top)" DockPanel.Dock="Right" Background="DarkKhaki" VerticalAlignment="Top"/>
        <Label Content="5th, fills remaining space, Centered" Background="Khaki" HorizontalAlignment="Center"/>
    </DockPanel>

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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