[SOLVED] How to draw scrollbars on WPF Canvas

How to draw scrollbars on WPF Canvas

I am trying to create a canvas with scroll bars. Can anyone help me give some ideas on how to do this? I have already tried using grid of 1 row and 1 column but due to certain constraints I want to use canvas.

Thanks in advance!

Solution

You could put the canvas inside of a scrollviewer. I tried this quick test and it allowed me to scroll through the contents of the canvas.

<ScrollViewer Height="100" Width="200">
    <Canvas Height="400" Width="400">
            //Content here
    </Canvas>
</ScrollViewer>

edit: Here is an example where the scroll-bars show up only when needed, and it changes dynamically as the canvas size changes.

    <Button Content="Change Canvas Size" Click="ChangeCanvasSize_Click"/>
<ScrollViewer Height="100" Width="200" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
    <Canvas x:Name="TestCanvas">
            <TextBlock Text="Test Test"/>
    </Canvas>
 </ScrollViewer>

Changing canvas size with button click:

    private void ChangeCanvasSize_Click(object sender, RoutedEventArgs e)
    {
        TestCanvas.Width = 600;
        TestCanvas.Height = 600;
    }

In this example, I start out with no scroll-bars and when I click the button to expand the canvas, scroll-bars appear.