Create window:
<Window
d:DataContext="{d:DesignInstance Type=MyType, IsDesignTimeCreatable=True}"
cal:Bind.AtDesignTime="True">
<ContentControl cal:View.Model="{Binding Model}" cal:View.Context="ViewContext1"/>
</Window>
Create view for view-model named [Root namespace].Model.ViewContext1
.
At design time see "Can't find view for view-model".
When run - is all right.