public void WhenOpenDialogsAreOpenIsExist()
{
object id = Guid.NewGuid();
_dialogHost.Identifier = id;
bool isExist = false;
_ = _dialogHost.ShowDialog("Content", new DialogOpenedEventHandler((sender, arg) =>
{
isExist = DialogHost.IsDialogOpen(id);
}));
Assert.True(isExist);
DialogHost.Close(id);
Assert.False(DialogHost.IsDialogOpen(id));
}
private static async void DisplayDialog(string msg)
{
if (!DialogHost.IsDialogOpen("MainDialogHost"))
{
SystemSounds.Exclamation.Play();
ErrorDialog error = new();
error.Message = msg;
_ = await DialogHost.Show(error, "MainDialogHost");
}
else
{
DialogHost.Close("MainDialogHost");
SystemSounds.Exclamation.Play();
ErrorDialog error = new();
error.Message = msg;
_ = await DialogHost.Show(error, "MainDialogHost");
}
}
public async Task WhenOnlySingleDialogHostIdentifierIsNullItShowsDialog()
{
DialogHost dialogHost2 = new();
dialogHost2.ApplyDefaultStyle();
dialogHost2.Identifier = Guid.NewGuid();
try
{
dialogHost2.RaiseEvent(new RoutedEventArgs(FrameworkElement.LoadedEvent));
Task showTask = DialogHost.Show("Content");
Assert.True(DialogHost.IsDialogOpen(null));
Assert.False(DialogHost.IsDialogOpen(dialogHost2.Identifier));
DialogHost.Close(null);
await showTask;
}
finally
{
dialogHost2.RaiseEvent(new RoutedEventArgs(FrameworkElement.UnloadedEvent));
}
}
public static async Task <object> ShowAsync(object model, string dialogName)
{
var view = Instance.ViewManager.CreateAndBindViewForModelIfNecessary(model);
var session = DialogHost.GetDialogSession(dialogName);
var sessionContext = (session?.Content as FrameworkElement)?.DataContext;
if (model.Equals(sessionContext))
{
return(null);
}
if (DialogHost.IsDialogOpen(dialogName))
{
DialogHost.Close(dialogName);
}
(model as IScreenState)?.Activate();
var result = await DialogHost.Show(view, dialogName).ConfigureAwait(true);
(model as IScreenState)?.Deactivate();
return(result);
}