admin/file/file_insert.aspx.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.OleDb;
using System.Data;

namespace cxxfShoping.a_dmin.file
{
    public partial class file_insert : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if(!IsPostBack)
            {
                if (Request.QueryString["del"] != null)
                {
                    int id = Convert.ToInt32(Request.QueryString["del"]);
                    string fturl2 = new AcsHelper().ExecuteScalar("select fileurl from filedata where id= " + id);

                    if (fturl2 != "")
                    {
                        System.IO.FileInfo fi2 = new System.IO.FileInfo(Server.MapPath(fturl2));
                        if (fi2.Exists)
                        {
                            fi2.Delete();
                        }
                    }
                    string sqlstring = "delete from filedata where id=" + id;
                    new AcsHelper().ExecuteNonQuery(sqlstring);

                    Response.Write("<script>location.href='file_insert.aspx';</script>");
                    Response.End();
                }
                else
                {
                    string sqlstring = "select * from filedata";
                    using (DataTable li = new AcsHelper().ExecuteDataTable(sqlstring))
                    {
                        this.Repeater1.DataSource = li;
                        this.Repeater1.DataBind();
                    }
                }
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            if (this.myFile.PostedFile != null)//上传文件
            {
                if (this.myFile.PostedFile.FileName != "")
                {
                    string photoName1 = myFile.PostedFile.FileName; //获取初始文件名    
                    int i = photoName1.LastIndexOf("."); //取得文件名中最后一个"."的索引    
                    string newext = photoName1.Substring(i); //获取文件扩展名    
                    //if (newext != ".gif" && newext != ".jpg" && newext != ".jpeg" && newext != ".bmp" && newext != ".png")
                    //{
                    //    Response.Write("文件格式不正确!");
                    //    Response.End();