WPF Pie Chart: XAML Designer is SLOW in VS2008 SP1

Jul 22, 2009 at 9:02 PM
Edited Jul 22, 2009 at 9:05 PM

I have created a simple WPF Application in VS2008 SP1 (running on Windows 7 RC x64).  I have added a chartingToolkit:PieSeries chart to the main window in a DockPanel.  Whenever I switch to the XAML/Design view, VS2008 hangs for long periods of time.  I have even forced display of the XAML (text) only instead of automatically showing the split screen between XAML and design and it's still painfully slow.

Note that the built application is fine and is very responsive.  The slow behavior is only in the designer.

Does anyone have any idea why this is happening or how to fix it?

Thanks so much in advance!