public void ProcessRequest(HttpContext context)
 {
     context.Response.ContentType = "text/html";
     MODEL.Products model = new MODEL.Products();
     model.Catid = Convert.ToInt32(context.Request.QueryString["cid"]);
     HttpPostedFile files = context.Request.Files["fileData"];
     string fileName = DateTime.Now.ToString("yyyyMMddHHmmss") + DateTime.Now.Millisecond;
     string uploadPath = context.Server.MapPath("/upload");
     string fileExtension = Path.GetExtension(files.FileName);
     model.Path = "upload/" + fileName + fileExtension;
     model.Name = files.FileName;
     BLL.Products bllPro = new BLL.Products();
     if (bllPro.AddProducts(model))
     {
         files.SaveAs(uploadPath + "\\" + fileName +fileExtension);
         context.Response.Write("OK");
     }
 }