Ah, got it.
I would expect WPF to detect an infinite loop, but I wouldn’t expect VS to crash. Yeah, open a VS 2010 bug report if you can.

Thanks,
Bea

please excuse a newbie, I think this should had been a bug report instead

by “cyclic Hierarchical Data Template” I meant like if also all tree node item expanded could mean an infinity deep tree

e.g. in your example changing the binding to

<HierarchicalDataTemplate DataType=”Node” ItemsSource=”{Binding XPath=.}”>
<TextBlock Text=”{Binding XPath=@Att}” />
</HierarchicalDataTemplate>

coursed VS to crash

my setup was not this simple though

By “cyclic Hierarchical Data Template”, do you mean this?

If so, it worked well for me in VS 2010 Beta 2 Ultimate, both in the designer and at runtime.

Do you see that issue only in the designer or also when you run it? Sometimes VS has bugs that are specific to the designer.

Hope it helps.
Bea

Is there any simple solution to avoid the WPF solution running for ever in case of cyclic Hierarchical Data Templates?

(Running forever seems at least to happen in the VSExpress 2010 Beta 2 designer)

Thanks Jens

To switch styles, you can simply set the Style property of an element:
btn.Style = (Style)this.Resources["style2"];

This works well in WPF and Silverlight 3 (it didn’t use to be supported in Silverlight 2).

Bea