文件上传

 

            string pgeFile = string.Empty;
            Random ran = new Random();

            pgeFile = DateTime.Now.ToString("yyyy-MM-dd") + ran.Next().ToString() + this.FileUpload.FileName;
             
            if (this.FileUpload.HasFile == false)
            {
                msg.InnerHtml = Input.AlertTo("请选择文件路径！", "", 1);
                return;
            }

            if (this. FileUpload.PostedFile.ContentLength > 20000)
            {
                msg.InnerHtml = Input.AlertTo("上传文件不能大于200KB！", "", 1);
                return;
            }

            string FileType = this.FileUpload.PostedFile.ContentType;

            if (FileType != "image/pjpeg" && FileType != "image/gif" && FileType != "image/x-png" && FileType != "image/bmp")
            {
                msg.InnerHtml = Input.AlertTo("请选择图片文件！", "", 1);
                return;
            }

            pgeFile = "/" + DateTime.Now.ToString("yyyy-MM-dd") + ran.Next().ToString() + this.FileUpload.FileName;
  
            this.FileUpload.SaveAs(Server.MapPath("upfile").ToString() + pgeFile);

            msg.InnerHtml = "<script type='text/javascript'>parent.document.getElementById('effect').style.display = 'block';parent.document.getElementById('picture').src = 'upfile" + pgeFile + "';parent.document.getElementById('fileurl').value = 'upfile" + pgeFile + "';</script>";