快速清空C#WINFORM窗體控制元件值

private void ClearControl(Control sender)
        {
            foreach (Control item in sender.Controls)
            {
                if (item is CoreTextBox || item is CoreComboBox)
                {
                    item.text = string.Empty;
                    continue;
                }
                if (item.Controls.Count > 0)
                    ClearControl(item);
            }
        } 


小結：方法內可自調方法,即反覆遞迴呼叫自身