products/products_Edit.aspx.cs

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

public partial class products_Edit : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            ShowInfo();
        }
    }

       // 初始化
    protected void ShowInfo()
    {


        string sql = "select * from products where pid=" + Request.QueryString["id"] ;
        //根据编号得到相应的记录
        SqlDataReader sdr = SqlHelper.ExecuteReader(sql);
        if (sdr.Read())
        {
            txt_pname.Text = sdr["pname"].ToString();
            txt_stand.Text = sdr["stand"].ToString();
            txt_pack.Text = sdr["pack"].ToString();
            ddlunits.SelectedValue=sdr["units"].ToString();
            txt_iprice.Text = sdr["iprice"].ToString();
            txt_oprice.Text = sdr["oprice"].ToString();
            txt_memo.Text = sdr["memo"].ToString();
        }
    }

    // 保存
    protected void btnSave_Click(object sender, EventArgs e)
    {
        StringBuilder strSql = new StringBuilder();

        //更新   
        strSql.Append("update products set ");
        strSql.Append("pname = @pname,");
        strSql.Append("stand = @stand,");
        strSql.Append("pack = @pack,");
        strSql.Append("units = @units,");
        strSql.Append("iprice = @iprice,");
        strSql.Append("oprice = @oprice,");
        strSql.Append("memo = @memo ");
        strSql.Append("  where pid=@pid");
        int pid = int.Parse(Request.QueryString["id"]);