请教文件上传问题

Question

if (FileUpload1.HasFile)
{}
else
{
    error
}

Answer 1

 //多附件上传
                for (int i = 0; i < fc.Count; i++)
                {
                    if (fc[i].FileName != "")
                    {
                        string filePhysicalPath = "";
                        try
                        {
                            HttpPostedFile hPostedFile = fc[i];
                            int Filelong = hPostedFile.ContentLength;
                            if (Filelong > Convert.ToInt32(ConfigurationManager.AppSettings["FileZize"].ToString()))
                            {
                                Response.Write("<script>alert('" + "文件过大,上传失败!" + "');</script>");
                                return;
                            }
                            string RandomString = Convert.ToString(Guid.NewGuid());
                            string TrueName = Path.GetFileName(fc[i].FileName);
                            string ExtendName = TrueName.Substring(TrueName.LastIndexOf("."));
                            string RandomName = RandomString + ExtendName;
                            filePhysicalPath = Server.MapPath("~/UpLoad/DepartmentWork/" + RandomName);
                            if (!Directory.Exists(filePhysicalPath))
                            {
                                Directory.CreateDirectory(Server.MapPath("~/UpLoad/DepartmentWork/"));
                            }
                            fc[i].SaveAs(filePhysicalPath);                            db.AddAttach(RandomName, AddID, TrueName);
                            log.AddLog("添加", "", "信息标题为：《" + txtname.Text + "》的《" + TrueName + "》附件");
                        }
                        catch
                        {
                            Response.Write("<script language=javascript>alert('上传文件出错！');</script>");
                        }
                    }
                }