[Solved] Poorly behaved XAML editor when RadGridView column has "*"

[Brian Sayatovic]

I have a view that contains a RadGridView among other things.  Thought my design-time width is 400, when one of my columns uses the wildcard width (“*”), the rendering of my UI in the editor design view grows to an unwieldy width.  If I change it to a constant or “Auto”, it behaves sanely.

Has anyone else experienced this, or – better yet – have a fix?