WPF Designer in VS 2010 has improved significantly compared to 2008.
It handles much more unusual cases without hacking and does a better job overall.
The above, with a few exceptions, still remains the same fundamental design as the 2008 designer. There are several new features, in particular for data-driven auto-generating forms, etc., but in general they work the same way.
As a result, I still find Blend a much nicer design tool for working with WPF. I’m just very glad that the designer doesn’t “break” as often, especially when you do things like using Blend behavior, etc.
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