protected virtual void OnLineRemoved(LineEventArgs e)
        {
            EventHandler <LineEventArgs> handler = LineRemoved;

            if (handler != null)
            {
                handler(this, e);
            }
        }
 private void HandleDocumentLineChanged(object sender, LineEventArgs e)
 {
     UpdateContentSize();
 }
 private void HandleDocumentLineChanged(object sender, LineEventArgs e)
 {
     UpdateContentSize();
 }