How to get Height/Width of a controller when it is set to be Auto

Question

0.00/5 (No votes)

See more:

, +

Hey guys,
I have a Canvas inside a grid, the Height and Width of the canvas is set to be Auto.
In my code behind, I need to draw a shape (i.e. Line, Rectangle) inside this Canvas and set the size of the shape to the size of Canvas (i.e. a Rectangle which has a Height same as the canvas and a width half of the canvas width)
I used the following :

C#

double H = A_Canvas.Height;
double H = A_Canvas.ActualHeight;

For the first one, I get NaN and for the second one I get 0.

How should I do this ?!

Posted 2-Jan-12 21:27pm

Hamed Metalgear

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

SteveAdey · Answer 1 · 2012-01-17T22:03:00

Solution 1

It depends on where you are trying to find out your canvas height.
You could override the OnRenderSizeChanged in the containing view. At this point the canvas has been given a size and ActualHeight with then work correctly.

Posted 17-Jan-12 22:03pm

SteveAdey