如何在此代码中使用递归函数？

问题描述

private void SaveMact(string ComboxSelectedValue)
        {
            if (MessageBox.Show("You are about to save current operation. Do you want to proceed?", "Save Data", MessageBoxButton.YesNo, MessageBoxImage.Question) != MessageBoxResult.Yes)
                return;
            try
            {
                using (SqlConnection conn = new SqlConnection(GlobalClass.DataConnectionString))
                using (SqlCommand cmdsave = new SqlCommand())
                {
                    conn.Open();
                    cmdsave.Connection = conn;

                    foreach (Menuitem mi in oMenuitemlist)
                    {

                        if (mi.RowChanged > 0 )
                          {
                              cmdsave.CommandText = "UPDATE MENUITEM SET MCAT = @MCAT WHERE MCODE = @MCODE OR PARENT = @MCODE OR MGROUP=@MCODE;
                            cmdsave.Parameters.AddWithValue(@MCAT, mi.Mcat);
                            cmdsave.Parameters.AddWithValue(@MCODE, mi.Mcode);
                            cmdsave.ExecuteNonQuery();

}
}

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