Admin/ModifyCP.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;
using System.IO;
using System.Data.SqlClient;
public partial class AdminManger_ModifyCP : System.Web.UI.Page
{
    SqlHelper data = new SqlHelper();

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            DropDownList2.DataSource = data.GetDataReader("select * from LeiXing");
            DropDownList2.DataValueField = "id";
            DropDownList2.DataTextField = "name";
            DropDownList2.DataBind();

            DropDownList1.DataSource = data.GetDataReader("select * from SPType");
            DropDownList1.DataValueField = "id";
            DropDownList1.DataTextField = "name";
            DropDownList1.DataBind();
         string   sql = "select * from SPInfo where SPID=" + Request.QueryString["id"].ToString();
            getdata(sql);
        }
    }
    private void getdata(string sql)
    {
        SqlDataReader dr = data.GetDataReader(sql);
        if (dr.Read())
        {
            title.Text = dr["SPName"].ToString();
            TextBox2.Text = dr["SPPrice"].ToString();
            TextBox3.Text = dr["SPNum"].ToString();
            content1.Value = dr["SPIntroduce"].ToString();
            pic.Text = dr["SPPhoto"].ToString();
            Image1.ImageUrl = "../files/" + dr["SPPhoto"].ToString();
            DropDownList1.Items.FindByValue(dr["SPTypeID"].ToString()).Selected = true;
            DropDownList1.Items.FindByText(dr["SPTypeName"].ToString()).Selected = true;

            DropDownList2.Items.FindByValue(dr["LeiXingID"].ToString()).Selected = true;
            DropDownList2.Items.FindByText(dr["LeiXingName"].ToString()).Selected = true;
         
        }

    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        string res;
        upload up = new upload();
        res = up.Up(file1, "../files/");
        this.Label1.Visible = true;
        this.Label1.Text = up.Resup[Convert.ToInt32(res)];