public ActionResult Edit(int pId = 0) { FilePage mFilePage = new FilePage(); var mFileType = FileService.LayTheLoaiFileTheoId(pId); if (mFileType != null) { var mFileTypeList = FileService.LayNhomFileAll(); //Tao danh sach cac nhom tin mFilePage.HtmlNhom = V308HTMLHELPER.TaoDanhSachNhomFile3(mFileTypeList, (int)mFileType.ParentID); mFilePage.pFileType = mFileType; } else { mFilePage.Html = "Không tìm thấy loại file cần sửa."; } return(View("Edit", mFilePage)); }