Question about HorizontalAlignment.Right on window size changed

Question

Hello. I am making a wpf app. I have a button that is made out of a canvas. I added this button to the child of another canvas and i want it to stay on the right side of the parent and it does with the code I have written but when i change the size of the application the parent gets way bigger and the exit button doesn't stay on the right hand side which is a problem. How can i the child with horizonatal alignment. right on the right hand side always without adding code to a window size changed event? Thanks.

Answer 1

You can try to design your xaml like below:

 <Grid Width="{Binding RelativeSource={RelativeSource AncestorType=Window,Mode=FindAncestor},Path=ActualWidth}"   
              Height="{Binding RelativeSource={RelativeSource AncestorType=Window,Mode=FindAncestor},Path=ActualHeight}"   
              >  
            <Grid.RowDefinitions>  
                <RowDefinition Height="4*"></RowDefinition>  
                <RowDefinition Height="*"></RowDefinition>  
            </Grid.RowDefinitions>  
            <Canvas Background="Azure" Grid.Row="0">  
            </Canvas>  
            <Canvas Background="LightPink" Grid.Row="1">  
                <Button Width="50" Content="Exit" Canvas.Right="25" Canvas.Bottom="40" />  
            </Canvas>  
        </Grid>  

The result picture is:

Did I misunderstand, if I did, please post your xaml code for me to analyze.

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