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c#wpfviewbox

How do I get the width and height of my viewbox

I need to get the dynamic Height and Width of my Viewbox The hierarchy of my xaml is like this:

<Grid>
 <DockPanel>
  <Border>
   <ViewBox/>
  </border>
 </DockPanel>
</Grid>

The Viewbox Width is on "Auto" and the Height is bound to a variable in my Controller. The Class hierarchy is like this: Xaml <--> Controller (the xaml.cs is mostly ignored)

Now my problem is that even in the direct code-behind (xaml.cs), I get 0 as ActualWidth and ActualHeight. If I change the dimension of my mainwindow I don't even get the standard Width and Height not to mention the dynamic one.

If Code-Snippets or information are missing, please tell me.

Here is the image with the red border. You have to look closey at the bottom (a small red Border): enter image description here

Regards Richard

What I have tried:

I tried to get the Dimensions within the Code-Behind: Height/Width (Only get the standard Height and NaN for Width)

ActualHeight/ActualWidth (both are 0)

RenderSize.Height/RenderSize.Width (both are 0)

I also tried the solution in this post: Getting current size of WPF controls It was the reason why I used the RenderSize solution

Solution

  • I end this question because the mainquestion was answered. It was answered in the comments from Kamil Solecki