private void MoveSlideUpButton_Click(object sender, RoutedEventArgs e)
{
if (SlideButtonsListBox.SelectedIndex > 0)
{
//UI
ListBoxItem listBoxItem = SlideButtonsListBox.SelectedItem as ListBoxItem;
int index = SlideButtonsListBox.SelectedIndex - 1;
SlideButtonsListBox.Items.Remove(listBoxItem);
SlideButtonsListBox.Items.Insert(index, listBoxItem);
SlideButtonsListBox.SelectedIndex = index;
SlideButtonsListBox.Focus();
//Data
Presentation.RemoveSlide(CurrentSlide);
Presentation.InsertSlideAt(index, CurrentSlide);
}
}
public void RemoveSlide()
{
if (Presentation.Slides.Count == 0)
{
return;
}
//Remove From Presentation
Presentation.RemoveSlideAt(SlideButtonsListBox.SelectedIndex);
//Remove UI
ListBoxItem listBoxItem = SlideButtonsListBox.SelectedItem as ListBoxItem;
SlideButtonsListBox.Items.Remove(listBoxItem);
if (SlideButtonsListBox.Items.Count != 0)
{
SlideButtonsListBox.SelectedIndex = SlideButtonsListBox.Items.Count - 1;
}
SlideButtonsListBox.Focus();
UpdateDisplay();
}