protected void Button2_Click(object sender, EventArgs e)
        {
            RecordChange rc = new RecordChange();

            rc.recordno = int.Parse(TextBox1.Text.Trim());
            if ("".Equals(TextBox2.Text.Trim()))
            {
                rc.changeDate = DateTime.Parse("1997/1/1");
            }
            else
            {
                rc.changeDate = DateTime.Parse(TextBox2.Text.Trim());
            }
            rc.originalDept  = TextBox3.Text.Trim();
            rc.currentDept   = TextBox4.Text.Trim();
            rc.originalClass = TextBox5.Text.Trim();
            rc.currentClass  = TextBox6.Text.Trim();
            if (update(rc))
            {
                Response.Write("<script>alert('修改成功!');</script>");
                DisplayData();
            }
            else
            {
                Response.Write("<script>alert('修改失败!');</script>");
            }
        }
        private bool update(RecordChange rc)
        {
            SqlParameter[] paras = new SqlParameter[] {
                new SqlParameter("@RecordNo", rc.recordno),
                new SqlParameter("@ChangeDate", rc.changeDate),
                new SqlParameter("@OriginalDept", rc.originalDept),
                new SqlParameter("@CurrentDept", rc.currentDept),
                new SqlParameter("@OriginalClass", rc.originalClass),
                new SqlParameter("@CurrentClass", rc.currentClass)
            };
            int rtn = SqlHelper.ExecuteNonQueryUsingProcedure("updateRecordChange", paras);

            return(rtn > 0 ? true : false);
        }