public ActionResult Edit(DietNous nous)
{
db.Entry(nous).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
return(RedirectToAction("Index"));
}
public ActionResult Add(DietNous nous, HttpPostedFileBase file)
{
if (file != null)
{
//判断文件大小
if (file.ContentLength > 0 && file.ContentLength < 4194304)
{
//获取上传文件路径
string fileName = Path.GetFileName(file.FileName);
//获取文件后缀名【两种方式-------截取==jpg，，，GetExtension== .jpg】
//string suff = fileName.Substring(fileName.LastIndexOf(".")+1);
string suff = Path.GetExtension(fileName);
//判断文件格式
if (suff == ".gif" || suff == ".jpg" || suff == ".png")
{
//保存上传文件的路径
file.SaveAs(Server.MapPath("~/images/diet/" + file.FileName));
//获取上传文件名，用于后期拿图片
ViewBag.img = file.FileName;
//存入数据库字段中
nous.NousPic = file.FileName;
}
else
{
ViewBag.Message = "文件格式不正确！";
}
}
else
{
ViewBag.Message = "文件大小不符合要求！";
}
}
else
{
ViewBag.Message = "请上传文件！";
}
db.DietNous.Add(nous);
db.SaveChanges();
return(RedirectToAction("Index"));
}
