private void ExecuteSelectNextPage()
{
WizardPage nextPage = null;
if (NextPageCommand?.CanExecute(CanSelectNextPage) == true)
{
NextPageCommand?.Execute(CanSelectNextPage);
}
if (CurrentPage != null)
{
var eventArgs = new RoutedEventArgs(NextEvent);
this.RaiseEvent(eventArgs);
//if (eventArgs.Cancel)
// return;
//check next page
if (CurrentPage.NextPage != null)
{
nextPage = CurrentPage.NextPage;
}
else
{
//no next page defined use index
var currentIndex = Items.OfType <WizardPage>().ToList().IndexOf(CurrentPage);
var nextPageIndex = currentIndex + 1;
if (nextPageIndex < Items.OfType <WizardPage>().Count())
{
nextPage = Items.OfType <WizardPage>().ToList()[nextPageIndex];
}
}
}
CurrentPage = nextPage;
}
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();
}
}
private void OnPropertyChanged(object sender, PropertyChangedEventArgs e)
{
NextPageCommand.RaiseCanExecuteChanged();
PrevPageCommand.RaiseCanExecuteChanged();
ButtonNext.Visibility = NextPageCommand.CanExecute(null) ? Visibility.Visible : Visibility.Hidden;
ButtonPrev.Visibility = PrevPageCommand.CanExecute(null) ? Visibility.Visible : Visibility.Hidden;
LabelPage.Content = PageCount == 1 ? null : $"{Page + 1}/{PageCount}";
if (ItemsSource == null)
{
return;
}
var pageSize = PageSize;
PagedItemSource =
new ObservableCollection <object>(
ItemsSource.OfType <object>().Skip(Page * pageSize).Take(pageSize).ToList());
if (e.PropertyName == nameof(ItemsSource))
{
Page = 0;
}
}