/// <summary>
/// Requests cancellation of the command.
/// </summary>
public void Cancel()
{
if (CancelCommand.CanExecute())
{
CancelCommand.Execute();
}
}
public DownloadingViewModel(IUnityContainer container) : base(container)
{
PauseAllCommand = new RelayCommand(() =>
{
foreach (var task in TransferTasks)
{
if (PauseCommand.CanExecute(task))
{
PauseCommand.Execute(task);
}
}
},
() => TransferTasks?.Any() ?? false);
CancelAllCommand = new RelayCommand(() =>
{
foreach (var task in TransferTasks)
{
if (CancelCommand.CanExecute(task))
{
CancelCommand.Execute(task);
}
}
},
() => TransferTasks?.Any() ?? false);
}
private void Cancel_Internal()
{
if (CancelCommand?.CanExecute(null) ?? false)
{
CancelCommand.Execute(null);
}
Cancel();
}
private void ExecuteCancelWizard()
{
RaiseRoutedEvent(Wizard.CancelEvent);
if (CancelCommand?.CanExecute(CanCancel) == true)
{
CancelCommand?.Execute(CanCancel);
}
if (CancelButtonClosesWindow)
{
CloseParentWindow(false);
}
}
private void CancelClick(object sender, RoutedEventArgs e)
{
VisualStateManager.GoToState(this, "ReadyState", true);
foreach (var editableItemsControl in _containedEditableItemsControls)
{
editableItemsControl.AddingItem = Activator.CreateInstance(editableItemsControl.AddingItem.GetType());
}
if (CancelCommand != null && CancelCommand.CanExecute(Content))
{
CancelCommand.Execute(Content);
}
}
private void CancelButton_Clicked(object sender, EventArgs e)
{
if (CancelCommand == null)
{
this.Hide();
}
else
{
if (CancelCommand.CanExecute(null))
{
CancelCommand.Execute(null);
}
}
}
/// <summary>
/// Cancels the current changes in the TextBox.
/// </summary>
public void Cancel()
{
BindingExpression expression = GetBindingExpression(TextProperty);
if (expression != null)
expression.UpdateTarget();
ClearUndoStack();
var cancelledArgs = new RoutedEventArgs(CancelledEvent);
OnCancelled();
RaiseEvent(cancelledArgs);
if (CancelCommand != null && CancelCommand.CanExecute(CancelCommandParameter))
CancelCommand.Execute(CancelCommandParameter);
}
private void Cancel()
{
BindingExpression expression = AssociatedObject.GetBindingExpression(TextBox.TextProperty);
if (expression != null)
{
expression.UpdateTarget();
}
ClearUndoStack();
AssociatedObject.RaiseEvent(new RoutedEventArgs(CancelledEvent));
if (CancelCommand != null && CancelCommand.CanExecute(CancelCommandParameter))
{
CancelCommand.Execute(CancelCommandParameter);
}
}
public DownloadingViewModel(IUnityContainer container) : base(container)
{
PauseAllCommand = new RelayCommand(() => TransferTasks.ForEach(item =>
{
if (PauseCommand.CanExecute(item))
{
PauseCommand.Execute(item);
}
}),
() => TransferTasks?.Any() ?? false);
CancelAllCommand = new RelayCommand(() => TransferTasks.ForEach(item =>
{
if (CancelCommand.CanExecute(item))
{
CancelCommand.Execute(item);
}
}),
() => TransferTasks?.Any() ?? false);
}
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs e)
{
base.OnPropertyChanged(e);
if (
e.Property.Name == nameof(CanSelectNextPage) ||
(e.Property.Name == nameof(CanHelp)) ||
(e.Property.Name == nameof(CanFinish)) ||
(e.Property.Name == nameof(CanCancel)) ||
(e.Property.Name == nameof(CanSelectPreviousPage)) ||
(e.Property.Name == nameof(CurrentPage))
)
{
CancelCommand?.CanExecute(CanCancel);
FinishCommand?.CanExecute(CanFinish);
PreviousPageCommand?.CanExecute(CanSelectPreviousPage);
NextPageCommand?.CanExecute(CanSelectNextPage);
HelpCommand?.CanExecute(CanHelp);
UpdateButtonState();
}
}
