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ASP POST ActionResult recieves a 0 instead of a provided ID value

Well, hello everyone.
I have a short ASP .NET MVC5 question. I have to pass a value from a ViewBag in the View method with a POST action result.
Create Method View Trigger
#Html.ActionLink("Add TestCase", "Create", "TestPlanTestCases", new { id = Model.TestPlan.ID }, null)
Controller Create GET method
public ActionResult Create(int id)
{
var testPlanFind = _db.TestPlan.Find(id);
ViewBag.TestPlanID = testPlanFind;
ViewBag.TestCaseID = new SelectList(_db.TestCase,"ID", "Name")
return View();
}
Create View, related DIV:
<div class="form-group">
#Html.LabelFor(model => model.TestPlanID, "TestPlanID", htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.ViewBag.TestPlanID.Name
#Html.ValidationMessageFor(model => model.TestPlanID, "", new { #class = "text-danger" })
</div>
Controller Create POST method
public ActionResult Create([Bind(Include = "TestPlanID,TestCaseID")] TestPlanTestCases testPlanTestCases)
{
if (ModelState.IsValid)
{
_db.TestPlanTestCases.Add(testPlanTestCases);
_db.SaveChanges();
return RedirectToAction("Details", "TestPlans", new {id = testPlanTestCases.TestPlanID});
}
ViewBag.TestCaseID = new SelectList(_db.TestCase, "ID", "Name", testPlanTestCases.TestCaseID);
ViewBag.TestPlanID = new SelectList(_db.TestPlan, "ID", "Name", testPlanTestCases.TestPlanID);
return View(testPlanTestCases);
So, my problem is, when the POST method is being called, the method always receives TestPlanID = 0 and TestCaseID = (ID of the chosen test case). I've used the same workaround for a different controller that has similar functionality and it works perfectly fine, but for some reason, when it comes to setting a predefined value such as TestPlanID it is automatically being set to 0, not even a null. The GET method works fine and passes the right ID, but when it comes down to the POST method, something goes wrong.
I hope I have provided enough information for you to understand the issue.
Thanks in advance!

Well. I've finally solved it, maybe not the best solution, but it works.
A dev friend of mine suggested parsing the URL to get the ID in the POST method. So I've decided to add 3 additional lines of code to the controller, first one to parse the URL for ID value, second to convert the string to Int32, and then assign the result value to the testPlanTestCases.TestPlan.
Updated Controller:
public ActionResult Create([Bind(Include = "TestCaseID")] TestPlanTestCases testPlanTestCases)
{
var testPlanId = RouteData.Values["id"];
testPlanId = Convert.ToInt32(testPlanId);
testPlanTestCases.TestPlanID = (int) testPlanId;
if (ModelState.IsValid)
{
_db.TestPlanTestCases.Add(testPlanTestCases);
_db.SaveChanges();
return RedirectToAction("Details", "TestPlans", new {id = testPlanTestCases.TestPlanID});
}
ViewBag.TestCaseID = new SelectList(_db.TestCase, "ID", "Name", testPlanTestCases.TestCaseID);
ViewBag.TestPlanID = new SelectList(_db.TestPlan, "ID", "Name", testPlanTestCases.TestPlanID);
return View(testPlanTestCases);

mvc 5 update bind attribute in submit

I have an MVC 5 with Entity Framework application, database first and I am new to MVC. I have a file picker control that selects an image and in Action Result class of the create view, I encode the picture for storage in SQL. I have the encoding correct, but the data from the view is in the Bind attributes and I want to update the property from the Bind with encoded picture before I write it to the database. When I try to write to the database, the whole app simply churns until it runs out of memory. Obviously, I am missing a piece.
View: This is the div with the filepicker and the place where the Entity Framework wanted the coded pic to go.
<div class="col-md-10"><br/><br/>
#Html.TextBox("beforeEncode", "", new { type = "file" })<br />
#Html.LabelFor(model => model.fldPhoto, htmlAttributes: new { #class = "control-label col-md-2" })
#Html.EditorFor(model => model.fldPhoto, new { htmlAttributes = new { #class = "form-control"} })
#Html.ValidationMessageFor(model => model.fldPhoto, "", new { #class = "text-danger" })
</div>
</div>
Controller: This is the controller with the irrelevant parts deleted. I have a breakpoint set on the db.SaveChanges(); line for checking if there was an issue with the encoding, but even with it removed, it just churns
public ActionResult Create([Bind(Include = "fldPhotoID,fldPhoto,beforeEncode")] tblPhoto tblPhoto, String beforeEncode)
{
var fileupload = beforeEncode;
try
{
if (ModelState.IsValid)
{
if (fileupload != null)
{
FileStream fs;
fs = new FileStream(beforeEncode, FileMode.Open, FileAccess.Read);
byte[] PicEncoded = new byte[fs.Length];
fs.Read(PicEncoded, 0, Convert.ToInt32(fs.Length));
fs.Close();
tblPhoto.fldPhoto = PicEncoded;
}
db.tblPhotoes.Add(tblPhoto);
db.SaveChanges();
return RedirectToAction("Index", "Home");
}

ASP.net use session data to add something in create view

I created this simple ASP.NET project. (Default template using MVC)
In there I generated models from my database using ADO.net
I also generated controller for my model. (The model generated functions for create, edit, delete...) I also got view for every function in the controller.
So what I am trying to do now is:
-I am in my create view. (that means I see my form for creating objects)
-I need to enter data for [title, content] but to post in database I also need an id (this id is a foreign key, not the id of the object i am creating)
I already have this id saved in my session. I can access the session data by doing:
var user = Session["user"] as Uporabniki; //returns session data
user.id //selects id from session
Now what I want is to use this id in the create form textbox.
As of now the rows for id in my view look like this (I have no idea why it's a dropdown list. When I open the site I see names of all users in database and I can select one. But this is not what I want. I want to see only one):
<div class="form-group">
#Html.LabelFor(model => model.id_avtorja, "id_avtorja", htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.DropDownList("id_avtorja", null, htmlAttributes: new { #class = "form-control" })
#Html.ValidationMessageFor(model => model.id_avtorja, "", new { #class = "text-danger" })
</div>
</div>
The create methods in controller look like this
// GET: Vprasanjas/Create
public ActionResult Create()
{
ViewBag.id_avtorja = new SelectList(db.Uporabniki, "id", "uporabniskoIme");
return View();
}
// POST: Vprasanjas/Create
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see http://go.microsoft.com/fwlink/?LinkId=317598.
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "id,naslov,vsebina,datum,id_avtorja")] Vprasanja vprasanja)
{
if (ModelState.IsValid)
{
db.Vprasanja.Add(vprasanja);
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.id_avtorja = new SelectList(db.Uporabniki, "id", "uporabniskoIme", vprasanja.id_avtorja);
return View(vprasanja);
}
Why is it not working if I change the view to something like this:
<div class="form-group">
#Html.LabelFor(model => model.id_avtorja, "id_avtorja", htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#var user = Session["user"] as Uporabniki;
#Html.Raw(user.id)
#Html.ValidationMessageFor(model => model.id_avtorja, "", new { #class = "text-danger" })
</div>
</div>
And how can I fix this?

Try rewrite to
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create([Bind(Include = "id,naslov,vsebina,datum,id_avtorja")] Vprasanja vprasanja)
{
if (ModelState.IsValid)
{
vprasanja.id = (Session["user"] as Uporabniki).id;
db.Vprasanja.Add(vprasanja);
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.id_avtorja = new SelectList(db.Uporabniki, "id", "uporabniskoIme", vprasanja.id_avtorja);
return View(vprasanja);
}
Main idea - assign your id on post.

Please post some info on the error. But my guess is you aren't creating any input HTML element so there's nothing posting. You need something like <input type="hidden" id="id_avtorja" value="#user.id"> in the form.
Also, I'd advise against using data out of a session variable. That's older technology and very un-MVC in philosophy.

double and decimal not working

I have to set a price either a double or decimal.
I get this error and I have tried all I know.
Model:
public double price { get; set; }
Controller create:
public ActionResult Create([Bind(Include = "ID,farmID,productID,price, URL")] ProductFarm productFarm) {
if (ModelState.IsValid) {
db.farmProducts.Add(productFarm);
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.farmID = new SelectList(db.farms.OrderBy(x => x.farmName), "farmID", "farmName", productFarm.farmID);
ViewBag.productID = new SelectList(db.products.OrderBy(x => x.productName), "productID", "productName", productFarm.productID);
return View(productFarm);
}
Edit - added view code:
<div class="form-group">
#Html.LabelFor(model => model.price, htmlAttributes: new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.price, new { htmlAttributes = new { #class = "form-control" } })
#Html.ValidationMessageFor(model => model.price, "", new { #class = "text-danger" })
</div>
</div>

This error is basically a locale issue. You have to set which locale you want to target to. By default the MVC scaffolding will default to your PC's culture.
You can set culture in your web.config
<system.web>
<globalization culture ="en-US" />
</system.web>
Since the issue is from the jquery validate plugin you can install jquery.validate.globalize
Install-Package jQuery.Validation.Globalize
Show's you how to use it https://johnnyreilly.github.io/jQuery.Validation.Unobtrusive.Native/AdvancedDemo/Globalize.html
Or,
You can extend your jquery.validate plugin yourself http://www.cedricascoop.be/blog/2011/10/22/mvc-3-problems-validating-a-decimal/
number: function (value, element) {
return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:,\d{3})+)?(?:\.\d+)?$/.test(value); //dot separated
return this.optional(element) || /^-?(?:\d+|\d{1,3}(?:\.\d{3})+)(?:,\d+)?$/.test(value); //comma separated
}
above code is from jquery.validate.js around line 1050 you can see the validation.Don't be confused I added the second return. I switched the return statement around. One return validates for dot another for comma.

Insert date from view to controller

I am filling a form in "view" and sending it back to "controller" class.
In my database i want to add the date and time of user creation.
code in my view
<div class="form-group">
#Html.LabelFor(model => model.Ticket_CreationDate, new { #class = "control-label col-md-2" })
<div class="col-md-10">
#Html.EditorFor(model => model.Ticket_CreationDate)
#Html.ValidationMessageFor(model => model.Ticket_CreationDate)
</div>
</div>
code in controller class
public ActionResult Create([Bind(Include = "Ticket_SenderEmail,Ticket_Sujet,Ticket_Body,Ticket_CreationDate,Ticket_ClientID,Ticket_Priority,Ticket_UserID,Ticket_Status_ID")] Ticket ticket)
{
if (ModelState.IsValid)
{
db.Ticket.Add(ticket);
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.Ticket_ClientID = new SelectList(db.Client, "Client_Id", "Client_Nom", ticket.Ticket_ClientID);
ViewBag.Ticket_Priority = new SelectList(db.Priority, "Priority_Id", "Priority_Name", ticket.Ticket_Priority);
ViewBag.Ticket_Status_ID = new SelectList(db.Ticket_Status, "Ticket_Status_Id", "Ticket_Status_Nom", ticket.Ticket_Status_ID);
ViewBag.Ticket_UserID = new SelectList(db.User, "User_Id", "User_Nom", ticket.Ticket_UserID);
return View(ticket);
}
My question is how i can send current datetime from view to controller ?

You won't send the date from the view, you will handle that in the controller...
yourdataentity newentity = new yourdataentity();
//the rest of your implementation may be a bit different, but this is one way to set the date for a new record...
newentity.createDate = DateTime.Now;
yourentitys.Add(newentity);
if (ModelState.IsValid)
{
db.yourentitys.Add(newentity);
db.SaveChanges();
}