asp.net 点击按钮后 弹出确认提示

 protected void BtnBookTypeAdd_Click(object sender, EventArgs e)

        {

           //遍历所有控件



            decimal  max_score =0;

            decimal  pf_score = 0;

            decimal  ckbox_score = 0;

            decimal  txtbox_score = 0;

            decimal  zf = 0;

            foreach (RepeaterItem c in RpBookType.Items)

            {

                

                CheckBox check = (CheckBox)c.FindControl("chk_active");

                TextBox txtbox = (TextBox)c.FindControl("txt_active");

                Label lbl_PFXL_SCORE = (Label)c.FindControl("lbl_PFXL_SCORE");

                Label lbl_PFDL_NAME = (Label)c.FindControl("lbl_PFDL_NAME");

                Label lbl_PFXL_NAME = (Label)c.FindControl("lbl_PFXL_NAME");

                Label lbl_PFDL_ID = (Label)c.FindControl("lbl_PFDL_ID");

                Label lbl_PFXL_ID = (Label)c.FindControl("lbl_PFXL_ID");

                max_score = Convert.ToDecimal(lbl_PFXL_SCORE.Text.ToString());



                //先做一些输入合法性的判断



                if (DAL.DataOperWj.IsNumric_wj(txtbox.Text.ToString()) == false)  //是否是合法的格式

                {

                    Common.ShowMessage.Show(Page, "error", "二级分类 " + lbl_PFXL_NAME.Text.ToString() + " 输入的格式错误，请检查！ ");

                    return;



                }



                if (txtbox.Text.ToString().Trim().IndexOf('-') > -1)

                {

                    Common.ShowMessage.Show(Page, "error", "二级分类 " + lbl_PFXL_NAME.Text.ToString() + " 有非法字符，请检查！ ");

                    return;

                }



                pf_score = Convert.ToDecimal(txtbox.Text.ToString()); //合法的格式再转换 



              

                if (pf_score > max_score && txtbox.Visible==true )   //是否大于最高分

                {

                    Common.ShowMessage.Show(Page, "error", "二级分类 " + lbl_PFXL_NAME.Text.ToString()  + " 列,大于最高分，请检查！ " );

                    return;



                }





               



                //合法检查结束，算个总分

                txtbox_score = txtbox_score + Convert.ToDecimal(txtbox.Text.ToString().Trim());

                if (check.Checked == true)

                {

                    ckbox_score = ckbox_score + Convert.ToDecimal(lbl_PFXL_SCORE.Text.ToString().Trim());

                }



        

            }



            //总分

            zf = txtbox_score + ckbox_score;



            //前面是一系列的判断，遍历repeater  取数

            //取完后，算出个总分，确认是否提交

            this.BtnBookTypeAdd.Attributes.Add("onclick", "return confirm('总分为： "+zf+"  确定提交吗？  ');");

            //选择是就提交,否就什么都不做，上面那句好像不行

            //todo  写库。

          

        }