houtai/edit_product.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.SqlClient;
using System.Data;
using System.IO;
namespace 电子商务.houtai
{
    public partial class edit_product : System.Web.UI.Page
    {
        SQLHelper db = new SQLHelper();
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                bind();
            }
        }
        //
        //
        public void bind()
        {
            SqlDataAdapter da = new SqlDataAdapter();
            DataSet ds = new DataSet();
            //
            string cx = "select * from category";
            DataTable dt_category = db.ExecuteQuery(cx, CommandType.Text);
            this.ddl_category.DataSource = dt_category;
            this.ddl_category.DataTextField = "category";
            this.ddl_category.DataValueField = "c_id";
            this.ddl_category.DataBind();
            //
            int id = Convert.ToInt32(Request.QueryString["id"].ToString());
            string sql = "select * from product where pro_id=" + id;
            DataTable dt = db.ExecuteQuery(sql, CommandType.Text);
            this.txt_name.Text = dt.Rows[0]["name"].ToString();
            this.txt_pic.Text = dt.Rows[0]["pic"].ToString();
            this.txt_cz.Text = dt.Rows[0]["cz"].ToString();
            this.txt_fg.Text = dt.Rows[0]["fg"].ToString();
            this.txt_price.Text = dt.Rows[0]["price"].ToString();
            this.fck.Value= dt.Rows[0]["ms"].ToString();
            this.ddl_category.Items.FindByValue(dt.Rows[0]["c_id"].ToString()).Selected = true;
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
            //
            if (FileUpload1.HasFile)
            {
                if (FileUpload1.PostedFile.ContentType.Substring(0, 5) == "image")
                {
                    string upPath = "../img/";  //上传文件路径

                    string name = FileUpload1.PostedFile.FileName;
                    FileInfo file = new FileInfo(name);
                    string fileName = DateTime.Now.ToString("yyyyMMddhhmmssfff") + file.Extension; // 文件名称，当前时间（yyyyMMddhhmmssfff）
                    string webFilePath = Server.MapPath(upPath) + fileName;