How to convert X/Y position to Canvas Left/Top properties when using ItemsControl?

The main problem with the code you presented is that the Canvas. Left and Canvas. Top properties are relative to a Canvas that is in the DataTemplate for the ItemsControl .

This keeps "resetting" the origin. Instead you can.

You can apply this conversion within a value converter in your binding. Value converters implement the IValueConverter interface (msdn.microsoft.com/en-us/library/system....). The problem is that your conversion requires both the X and Y component of your item.

A simple solution to this would be to bind to MyItem, rather than MyItem.WorldX. You can achieve this by using "Path=.", if you then create the following value converter ...

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