Add elements to WPF canvas from an outside class file

[ineale]

I have a window1.xaml file that has a canvas created in xaml. I have used xaml to define the canvas so that i can later add a map from Expression Design to it. I have a function in an outside class file, PathNode.cs, that should draw an ellipse to the canvas. My problem is that when I try to add the ellipse to the canvas via:

canvas1.Children.Add(node);

I get the error "The name 'canvas1' does not exist in the current context," which I understand, but don't know how to remedy.

How do i access the canvas from the other class file?

[kvprajapati]

>I have used xaml to define the canvas so that i can later add a map from Expression Design to it

You have to create a Usercontrol. Have a look at msdn article - http://msdn.microsoft.com/en-us/library/cc294992.aspx