manage/menus/Edit_menus.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 Edit_menus : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
           ((Label)Master.FindControl("titleMsg")).Text  = "修改菜系";
            ShowInfo();
        }
    }

       // 初始化
    protected void ShowInfo()
    {
        DataSet ds = SqlHelper.ExecuteforDataSet("select bh,lbmc from menus_type");
        ddlbh.DataSource = ds;
        ddlbh.DataTextField = "lbmc";
        ddlbh.DataValueField = "bh";
        ddlbh.DataBind();


        string sql = "select * from menus where mbh=" + Request.QueryString["id"] ;
        //根据编号得到相应的记录
        SqlDataReader sdr = SqlHelper.ExecuteReader(sql);
        if (sdr.Read())
        {
            txt_mc.Text = sdr["mc"].ToString();
            ddlbh.SelectedValue=sdr["bh"].ToString();
            txt_jg.Text = sdr["jg"].ToString();
            Label2.Text = sdr["tp"].ToString();
            if (Label2.Text != "" && Label2.Text.Length > 3)
            {
               Image1.ImageUrl = "../../uploads/" + Label2.Text;
               Image1.Visible = true;
             }
            Textarea1.Value = sdr["xxsm"].ToString();;
        }
    }

    // 保存
    protected void btnSave_Click(object sender, EventArgs e)
    {
//验证输入
        string err = "";

        if (txt_mc.Text == "")
        {
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