private bool?LaunchDialog(DeviceHubDialogViewModelBase viewModel, bool isModal, EventHandler closedHandler)
{
bool?retval = null;
DeviceHubDialogView view = GetDialogView(viewModel);
view.DataContext = viewModel;
view.Owner = ParentWindow;
if (isModal)
{
viewModel.RequestClose += view.OnRequestClose;
retval = view.ShowDialog();
viewModel.RequestClose -= view.OnRequestClose;
view.DataContext = null;
view = null;
}
else
{
if (closedHandler != null)
{
viewModel.NotifyClosed += closedHandler;
}
view.Closed += (o, a) => { viewModel.NotifyClosedSubscribers(); };
view.Show();
viewModel.Activate();
}
return(retval);
}
private DeviceHubDialogView GetDialogView(DeviceHubDialogViewModelBase viewModel)
{
if (Contents == null)
{
throw new Exception("Dialog Service contents are null!");
}
string viewModelClassname = viewModel.GetType().FullName;
DialogContents item = Contents.Where(c => c.ViewModelClassname == viewModelClassname).FirstOrDefault();
if (item == null)
{
throw new Exception(String.Format("Invalid classname, {0), passed to DialogService.LaunchDialog().", viewModelClassname));
}
Type viewType = Type.GetType(item.ViewClassname);
DeviceHubDialogView view = (DeviceHubDialogView)Activator.CreateInstance(viewType);
view.Owner = ParentWindow;
return(view);
}
public bool?ShowDialog(DeviceHubDialogViewModelBase viewModel)
{
return(LaunchDialog(viewModel, true, null));
}
public void Show(DeviceHubDialogViewModelBase viewModel, EventHandler closedHandler)
{
LaunchDialog(viewModel, false, closedHandler);
}
