I set a ContentControl in the right of Window, and set Content binding Items (it's type is ObservableCollection). Now I want to achieve it: if there are no item, ContentControl select first DataTem...

I have made a sample demo VS 2010 RC sample project, because in my production project I have the same error using MVVM. In my sample demo project I use only Code-behind without 3rd party dependenc...

Ok... this has me stumped. I've overridden OnContentTemplateChanged in my UserControl subclass. I'm checking that the value passed in for newContentTemplate does in fact equal this.ContentTemplate ...

I have a Listbox and a Border in a StackPanel similar to the following: <StackPanel Orientation="Horizontal"> <ListBox> <ListBoxItem Content="People"/> <ListBoxItem Content...

debuging this class the SelectTemplate Method is run 2 times, but why? The first time the item is always null. public class PersonDataTemplateSelector : DataTemplateSelector { public override Da...