why my fields in my view is empty RSS

• • Reply
  aabedeni056

  Member

  36 Points

  131 Posts

  why my fields in my view is empty

  Dec 25, 2018 10:27 AM|aabedeni056|LINK

  hello .

  i have view with textbox and radio button . with my controller 1: my fields value save in db but dont show in new view that i write . please help me .

  controller 1(save in db) :

  public ActionResult index4(string modiran_semat, modiran modiran)
  {
  TryUpdateModel(modiran, modiran_semat);

  if (ModelState.IsValid)
  {
  db.modiran.Add(modiran);
  db.SaveChanges();
  return RedirectToAction("index5");

  }
  return View();

  // return RedirectToAction("index3");
  }

  controller 2 , controller 3:

  public ActionResult index5(string modiran_semat,FormCollection collection)
  {
  // var semat = Request.Form["modiran_semat"];
  var model = new modiran();
  TryUpdateModel(model, collection);
  // TryUpdateModel(model, modiran_semat);
  TempData["modiran_id"] = model.modiran_id;
  TempData["modiran_name"] = model.modiran_name;
  TempData["modiran_semat"] = model.modiran_semat;
  return RedirectToAction("PassValue_Index3", "modiran");
  }

  public ActionResult PassValue_Index3()
  {

  
  ViewBag.modiran_id = TempData["modiran_id"];

  ViewBag.modiran_name = TempData["modiran_name"];

  ViewBag.modiran_semat = TempData["modiran_semat"];

  
  return View();

  }

  but dont show in my new view :

  <div class="form-group">

  id:

  <div class="col-md-10">

  @Html.TextBox("id", (Int32)ViewBag.modiran_id, new { @style = "width: 300px;" })

  </div>

  </div>

  
  <div class="form-group">

  نام :

  <div class="col-md-10">

  @Html.TextBox("name", (string)ViewBag.modiran_name, new { @style = "width: 300px;" })

  </div>

  </div>

  
  <div class="form-group">

  سمت :

  <div class="col-md-10">

  @Html.TextBox("semat", (string)ViewBag.modiran_semat, new { @style = "width: 300px;" })

  </div>

  </div>

  please help me

• • Reply
  bruce (sqlwo...

  All-Star

  57874 Points

  15505 Posts

  Re: why my fields in my view is empty

  Dec 25, 2018 04:39 PM|bruce (sqlwork.com)|LINK

  Your redirect to index5 does not pass any data. A redirect is used to tell the browser to load a new url. The only data passed is on the query string (part of the url).
  bruce (sqlwork.com)
• • Reply
  Yuki Tao

  Contributor

  3710 Points

  1431 Posts

  Re: why my fields in my view is empty

  Dec 26, 2018 05:25 AM|Yuki Tao|LINK

  Hi aabedeni056,

  I saw your code，

  You redirected multiple times with some parameters.

  index4 ->index5->PassValue_Index3

  Are you sure your parameters have values from index4 to index5?

  aabedeni056

  return RedirectToAction("index5");

  This line can not pass parameters.

  public ActionResult index5(string modiran_semat,FormCollection collection)

  I suggest you could add some breakpoints and check if the parameters(modiran_semat,collection) have values.

  I think you can combine these action to avoid multiple redirects.

  Best Regards.

  Yuki Tao

  MSDN Community Support
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• • Reply
  Zhi Lv - MSF...

  All-Star

  45489 Points

  7008 Posts

  Microsoft

  Re: why my fields in my view is empty

  Jan 01, 2019 07:57 AM|Zhi Lv - MSFT|LINK

  Hi aabedeni056,

  aabedeni056

  with my controller 1: my fields value save in db but dont show in new view that i write . please help me .

  Have you ever solved this problem？

  As bruce and Yuki Tao said, you didn't transfer data to the Index5 action method. You could modify your code as below, and transfer the modiran to "index5",

  code like this:

  return RedirectToAction("index5", modiran);

  and 

  public ActionResult index5(modiran modiran)

  Besides, in the index5 action method, you could also try to query the database and get the latest data.

  Best regards

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