public ActionResult Add()
{
Doc_Info info = new Doc_Info();
info.Doc_Code = diInstance.GenerateDocCode();
info.Doc_Creator = SessionConfig.UserId();
info.Doc_CreatorName = SessionConfig.UserName();
info.Doc_DpCode = SessionConfig.DeptCode();
info.Doc_DpName = SessionConfig.DeptName();
info.Doc_Date = DateTime.Now;
GetbackUrl();
return(View(info));
}