Shows the resolving of Viewmodels works during Runtime and DesignTime via global ViewmodelResolver so the view itself does knot need to know the Viewmodel.
Decorate Viewmodel Class with Optional DesignTimeData:
[ViewModel("MainWindow", designDataType:typeof(MainWindowDesignData))]
internal class MainWindowViewModel : ViewModelBase, IMainWindowViewModel
{
...
}set Datacontext to Locator in Xaml:
<Window.DataContext>
<Binding Source="{StaticResource GlobalVmLocator}" Path="[MainWindow]" />
</Window.DataContext>DesignTime vs Runtime :
Sadly this produces an Resharper error, because of the ILocator interface:
public interface ILocator
{
void Register(string name, object o);
object Locate(string name);
object this[string name] { get; }
}
When changed to IMainWindowViewModel, R# can lookup the Properties and the warnings are gone. This way the Locator obviously cannot be used globally. :(
public interface ILocator
{
void Register(string name, object o);
IMainWindowViewModel Locate(string name);
object this[string name] { get; }
}
Debugging tipps
- Start a second instance of Visual Studio
- Attach the debugger to XDesProc Process (Xaml Designer Process)
- Close all Xaml designer windows and Reopen the one in which you wanna try to Debug the resolving of Design Instance Viewmodel