| public _WaitForCloseAsync ( ) : System.Threading.Tasks.Task | ||
| Résultat | System.Threading.Tasks.Task | |
/// <summary>
/// Hides a visible Metro Dialog instance.
/// </summary>
/// <param name="window">The window with the dialog that is visible.</param>
/// <param name="dialog">The dialog instance to hide.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">
/// The <paramref name="dialog"/> is not visible in the window.
/// This happens if <see cref="ShowMetroDialogAsync"/> hasn't been called before.
/// </exception>
public static Task HideMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (!window.metroDialogContainer.Children.Contains(dialog))
{
throw new InvalidOperationException("The provided dialog is not visible in the specified window.");
}
window.SizeChanged -= dialog.SizeChangedHandler;
dialog.OnClose();
Task closingTask = (Task)window.Dispatcher.Invoke(new Func <Task>(() => dialog._WaitForCloseAsync()));
return(closingTask.ContinueWith <Task>(a =>
{
if (DialogClosed != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogClosed(window, new DialogStateChangedEventArgs()
{
})));
}
return (Task)window.Dispatcher.Invoke(new Func <Task>(() =>
{
window.metroDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return window.HideOverlayAsync();
}));
}).Unwrap());
}
/// <summary>
/// Hides a visible Metro Dialog instance.
/// </summary>
/// <param name="window">The window with the dialog that is visible.</param>
/// <param name="dialog">The dialog instance to hide.</param>
/// <returns>A task representing the operation.</returns>
/// <exception cref="InvalidOperationException">
/// The <paramref name="dialog"/> is not visible in the window.
/// This happens if <see cref="ShowMetroDialogAsync"/> hasn't been called before.
/// </exception>
public static Task HideMetroDialogAsync(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
if (!window.metroDialogContainer.Children.Contains(dialog))
throw new InvalidOperationException("The provided dialog is not visible in the specified window.");
window.SizeChanged -= dialog.SizeChangedHandler;
dialog.OnClose();
Task closingTask = (Task)window.Dispatcher.Invoke(new Func<Task>(() => dialog._WaitForCloseAsync()));
return closingTask.ContinueWith<Task>(a =>
{
if (DialogClosed != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogClosed(window, new DialogStateChangedEventArgs()
{
})));
}
return (Task)window.Dispatcher.Invoke(new Func<Task>(() =>
{
window.metroDialogContainer.Children.Remove(dialog); //remove the dialog from the container
return window.HideOverlayAsync();
}));
}).Unwrap();
}
public static Task <object> ShowBaseMetroDialog(this MetroWindow window, BaseMetroDialog dialog)
{
window.Dispatcher.VerifyAccess();
return(HandleOverlayOnShow(null, window).ContinueWith(z =>
{
return (Task <object>)window.Dispatcher.Invoke(new Func <Task <object> >(() =>
{
SizeChangedEventHandler sizeHandler = SetupAndOpenDialog(window, dialog);
dialog.SizeChangedHandler = sizeHandler;
return dialog.WaitForLoadAsync().ContinueWith(x =>
{
if (DialogOpened != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogOpened(window, new DialogStateChangedEventArgs())));
}
return dialog.WaitForButtonPressAsync().ContinueWith(y =>
{
//once a button as been clicked, begin removing the dialog.
dialog.OnClose();
if (DialogClosed != null)
{
window.Dispatcher.BeginInvoke(new Action(() => DialogClosed(window, new DialogStateChangedEventArgs())));
}
Task closingTask = (Task)window.Dispatcher.Invoke(new Func <Task>(() => dialog._WaitForCloseAsync()));
return closingTask.ContinueWith(a =>
{
return ((Task)window.Dispatcher.Invoke(new Func <Task>(() =>
{
window.SizeChanged -= sizeHandler;
window.RemoveDialog(dialog);
return HandleOverlayOnHide(null, window);
}))).ContinueWith(y3 => y).Unwrap();
});
}).Unwrap();
}).Unwrap().Unwrap();
}));
}).Unwrap());
}