Admin/jiaoyiUpdate.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 jiaoyiUpdate : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            string sql = "select * from Project";
            DataSet result = new DataSet();
            result = new Class1().hsggetdata(sql);
            if (result != null)
            {
                for (int i = 0; i < result.Tables[0].Rows.Count; i++)
                {
                    this.DropDownList1.Items.Add(result.Tables[0].Rows[i]["Name"].ToString());
                }
            }
            getdate();
        }
    }
    private void getdate() 
    {
        string sql;
        sql = "select * from jiaoyi where id=" + Request.QueryString["id"].ToString().Trim();
        DataSet result = new DataSet();
        result = new Class1().hsggetdata(sql);
        if (result != null)
        {
            this.bianhao.Text = result.Tables[0].Rows[0]["Number"].ToString();
            this.Number.Text = result.Tables[0].Rows[0]["shenfenzheng"].ToString();
            this.Name.Text = result.Tables[0].Rows[0]["ClientName"].ToString();
            this.DropDownList1.Text = result.Tables[0].Rows[0]["ProjectName"].ToString();
            this.qici.Text = result.Tables[0].Rows[0]["qici"].ToString();
            this.jiiner.Text = result.Tables[0].Rows[0]["jiner"].ToString();
            this.Times1.Text = result.Tables[0].Rows[0]["Times1"].ToString();
            this.Times2.Text = result.Tables[0].Rows[0]["Times2"].ToString();
            this.Times3.Text = result.Tables[0].Rows[0]["Times3"].ToString();
            this.shouyi.Text = result.Tables[0].Rows[0]["shouyi"].ToString();
        }
    }
    protected void Number_TextChanged(object sender, EventArgs e)
    {
        string Number = this.Number.Text;
        string sql = "select * from Client where Number='" + Number + "'";
        DataSet result = new DataSet();
        result = new Class1().hsggetdata(sql);
        if (result != null)
        {
            if (result.Tables[0].Rows.Count > 0)
            {
                this.Name.Text = result.Tables[0].Rows[0]["Name"].ToString();

            }