How to add content control to a shape added to a canvas all runtime
I have a static canvas. I have added a shape runtime. Then I try to add a contentcontrol which will hold the shape. But as开发者_StackOverflow the the shape is already added to the canvas, it gives a logical child error. Can anyone help me how to get this done keeping the logic of adding the contentcontrol later dynamically?
XAML: Inside window tag keep a blank canvas with name="cnv"
C#:
Ellipse ee = new Ellipse();
ee.Width = 100;
ee.Height= 50;
ee.Fill= Brushes.Red;
ee.Name = "el";
hidden.Children.Add(ee);
ContentControl cc = new ContentControl();
cc.BorderBrush = Brushes.Black;
cc.Content = ee;
cnv.Children.Add(ee);
As Kent points out an element can only have one parent, so simply remove the line:
hidden.Children.Add(ee);
from your code as you are also calling:
cnv.Children.Add(ee);
A UIElement
can only have one parent, so you'll need to remove it from the Canvas
before re-seating it elsewhere:
hidden.Children.Remove(ee);
cc.Content = ee;
cnv.Children.Add(ee);
PS. There's almost certainly a nicer, cleaner way to do whatever it is you're trying to do, rather than playing around in the visual tree like you are.
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