Drawing lines between elements in WPF

StackOverflow https://stackoverflow.com/questions/1891146

  •  19-09-2019
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Question

What is a good approach for drawing lines between elements in WPF?

I have a view in my application with several buttons that make up a diagram. They scale and move depending on the view's size and shape. I would like to indicate a relationship between some of the buttons using a line.

I am not using a Canvas to lay everything out because I want the buttons' relative positions to be dynamic, and I do not want everything to scale at the same rate (like a ViewBox does).

Was it helpful?

Solution 2

My solution was to use a Grid with a Canvas and my elements in the same cell. I drew the lines in the Canvas in my code-behind file.

OTHER TIPS

You need to create a container Control to be able to define the relationship of the buttons.

Once this is established, drawing the line should be a matter of overriding OnRender, finding the position of each child control, and using the DrawingContext to draw the line.

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