protected void btnMain_banner(object sender, EventArgs e)
    {
        //Bẫy lỗi kiểu file
        string filename = Path.GetFileName(ipSliderFile.FileName);
        // var sliderLanding = $('#ipSliderLanding').val();
        var Extension = filename.Substring(filename.LastIndexOf('.') + 1).ToLower();

        if (Extension != "gif" && Extension != "png" && Extension != "jpg")
        {
            return;
        }

        if (filename != null && filename.Length > 0)
        {
            string path = Server.MapPath("~/image_banner/");
            try
            {
                tb_HomeMainBanner img            = new tb_HomeMainBanner();
                string            fileName       = filename;
                string            mSliderLanding = Request.Form["ctl00$ContentPlaceHolder1$ipSliderLanding"];
                string            mSliderHeader1 = Request.Form["ctl00$ContentPlaceHolder1$ipSliderHeader1"];
                string            mSliderHeader2 = Request.Form["ctl00$ContentPlaceHolder1$ipSliderHeader2"];
                string            mSliderSort    = Request.Form["ctl00$ContentPlaceHolder1$ipSliderSort"];
                int slidesort = 0;
                if (mSliderSort != null)
                {
                    slidesort = int.Parse(mSliderSort);
                }

                ipSliderFile.SaveAs(path + fileName);
                img.BannerPath        = "../image_banner/" + fileName;
                img.BannerUpload      = DateTime.Now;
                img.BannerLandingpage = mSliderLanding;
                img.BannerHeader1     = mSliderHeader1;
                img.BannerHeader2     = mSliderHeader2;
                img.SortArr           = slidesort;
                db.tb_HomeMainBanner.Add(img);
                db.SaveChanges();
                Response.Write("<script>alert('Upload Complete !')</script>");
                getBannerMainSlider();
            }
            catch (Exception)
            {
                Response.Write("<script>alert('False !')</script>");
            }
        }
    }
 protected void btnDeleteCustomer(object sender, EventArgs e)
 {
     try
     {
         int    sliderID = 0;
         string cID      = Request.Form["ctl00$ContentPlaceHolder1$sliderID"];
         if (cID != null)
         {
             sliderID = int.Parse(cID);
             tb_HomeMainBanner t = (tb_HomeMainBanner)db.tb_HomeMainBanner.Where(b => b.HomeMainBannerID == sliderID).First();
             db.tb_HomeMainBanner.Remove(t);
             db.SaveChanges();
             Response.Write("<script>alert('Xoa slide hình thành công !')</script>");
             getBannerMainSlider();
         }
     }
     catch (Exception)
     {
         Response.Write("<script>alert('Xóa không thành công, vui lòng thử lại !')</script>");
     }
 }