dd_list.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class dd_list : System.Web.UI.Page
{
    public int zgs;
    public float ze;
    protected void Page_Load(object sender, EventArgs e)
    {
        //if (!IsPostBack)
        //{
            string sql;
            if (Request.QueryString["ztid"] != null)
            {
                if (Request.QueryString["yuan"].ToString().Trim() == "未发货")
                {
                    sql = "update gwc set zt='已发货' where id=" + Request.QueryString["ztid"].ToString().Trim();
                }
                else
                {
                    sql = "update gwc set zt='未发货' where id=" + Request.QueryString["ztid"].ToString().Trim();
                }
                int result;
                result = new Class1().hsgexucute(sql);
            }
            sql = "SELECT gwc.shuliang, gwc.zt, gwc.ID, users.username, allpro.mc, allpro.lb, allpro.price1,   allpro.price2, allpro.fn, gwc.addtime, allpro.ID AS allproID, CAST(allpro.price2 AS float)* CAST(gwc.shuliang AS float) AS ze FROM gwc INNER JOIN  users ON gwc.username = users.username INNER JOIN   allpro ON gwc.proid = allpro.ID WHERE (gwc.zt = '未结账')  and [users].username='"+Session["username"].ToString()+"'";
            
            getdata(sql);
       // }
    }

    private void getdata(string sql)
    {
        DataSet result = new DataSet();
        result = new Class1().hsggetdata(sql);
        if (result != null)
        {
            if (result.Tables[0].Rows.Count > 0)
            {
                DataGrid1.DataSource = result.Tables[0];
                DataGrid1.DataBind();
            }
            else
            {
                DataGrid1.DataSource = null;
                DataGrid1.DataBind();
            }
        }
        zgs = 0;
        int i = 0;
        for (i = 0; i < result.Tables[0].Rows.Count; i++)
        {