private void button3_Click(object sender, RoutedEventArgs e)
 {
     newItem itemAdder = new newItem();
     itemAdder.ShowDialog();
     if (itemAdder.gotItem)
     {
         Combatant combatant = (Combatant)grid1.DataContext;
         combatant.addItem(itemAdder.Item);
     }
 }
 private void StackPanel_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
 {
     newItem itemAdder = new newItem();
     Combatant combatant = (Combatant)quickSheet.DataContext;
     itemAdder.Item = combatant.Items[itemListBox.SelectedIndex];
     itemAdder.ShowDialog();
 }