/// <summary>
/// Click on the "Delete" button. It delete the selected animation group.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void deleteAnimationButton_Click(object sender, EventArgs e)
{
int selectedIndex = animationListBox.SelectedIndex;
if (selectedIndex < 0)
{
return;
}
AnimationGroup selectedItem = (AnimationGroup)animationListBox.SelectedItem;
// delete item
selectedItem.DeleteFromData();
// update list
animationGroups.Remove(selectedItem);
animationGroups.SaveToData();
animationListBinding.ResetBindings(false);
// get new selected item at the current index, if any
selectedIndex = Math.Min(selectedIndex, animationListBox.Items.Count - 1);
selectedItem = selectedIndex < 0 ? null : (AnimationGroup)animationListBox.Items[selectedIndex];
animationListBox.SelectedItem = selectedItem;
}