OpenTween.TweenMain.doUrlUndo C# (CSharp) Method

        private void doUrlUndo()
        {
            if (urlUndoBuffer != null)
            {
                string tmp = StatusText.Text;
                foreach (urlUndo data in urlUndoBuffer)
                {
                    tmp = tmp.Replace(data.After, data.Before);
                }
                StatusText.Text = tmp;
                urlUndoBuffer = null;
                UrlUndoToolStripMenuItem.Enabled = false;
                StatusText.SelectionStart = 0;
                StatusText.SelectionLength = 0;
            }
        }