public void RemoveItem()
{
if (ListBoxItems.Count > 0)
{
ListBoxItems.RemoveAt(ListBoxItems.Count - 1);
}
}
/// <summary>
/// Removes an element from the ListBox
/// </summary>
/// <param name="itemIndex"></param>
public void RemoveItem(int itemIndex)
{
ListBoxItems.RemoveAt(itemIndex);
}