Admin/jihuaUpdate.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;

public partial class Admin_jihuaUpdate : System.Web.UI.Page
{
    SqlHelper insert = new SqlHelper();
    Alert js = new Alert();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string strsql = "select * from gongyingshang";
            DataSet ds = insert.GetDs(strsql, "ds");
            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
            {
                gongyingshang.Items.Add(new ListItem(ds.Tables[0].Rows[i]["gysmingcheng"].ToString(), ds.Tables[0].Rows[i]["gysbianhao"].ToString()));
            }
            Info();
        }
    }
    private void Info()
    {
        string dingdanbianhao = Request.QueryString["dingdanbianhao"].ToString();
        string strsql = "select * from dingdan where dingdanbianhao='" + dingdanbianhao + "'";
        DataSet ds = insert.GetDs(strsql, "ds");
        if (ds.Tables[0].Rows.Count > 0)
        {
            this.dingdanbianhao.Text = ds.Tables[0].Rows[0]["dingdanbianhao"].ToString();
            this.chanpinName.Text = ds.Tables[0].Rows[0]["chanpinName"].ToString();
            this.shuliang.Text = ds.Tables[0].Rows[0]["shuliang"].ToString();

            this.caigoushijian.Text = ds.Tables[0].Rows[0]["caigoushijian"].ToString();
            gongyingshang.Items.FindByValue(ds.Tables[0].Rows[0]["gysbianhao"].ToString()).Selected = true;
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string dingdanbianhao1 = Request.QueryString["dingdanbianhao"].ToString();
        string dingdanbianhao = this.dingdanbianhao.Text;
        string gysbianhao = this.gongyingshang.SelectedItem.Value;
        string chanpinName = this.chanpinName.Text;
        string shuliang = this.shuliang.Text;
        string caigoushijian = this.caigoushijian.Text;
        string strsql = "select * from dingdan where dingdanbianhao='" + dingdanbianhao + "' and dingdanbianhao !='" + dingdanbianhao1 + "'";
        DataSet ds = insert.GetDs(strsql, "ds");
        if (ds.Tables[0].Rows.Count > 0)
        {
            js.Alertjs("订单编号已经存在不能重复添加");
            return;
        }
        string strsql1 = " Update dingdan set ";
        strsql1 += "dingdanbianhao='" + dingdanbianhao + "',gysbianhao='" + gysbianhao + "',chanpinName='" + chanpinName + "',shuliang=" + shuliang + ",caigoushijian='" + caigoushijian + "' ";
        strsql1 += " where dingdanbianhao='" + dingdanbianhao1 + "'";
        insert.RunSql(strsql1);
        Alert.AlertAndRedirect("修改成功", "jihuaguanli.aspx");