Post parameter is null - post

Question

I Have controller with following methods:
public ActionResult Create()
{
return View();
}
[Authorize]
[HttpPost]
public ActionResult Create(Tests test)
{
test.CreateDate = DateTime.Now;
test.Author = User.Identity.Name;
TestEntities db = new TestEntities();
db.AddToTests(test);
db.SaveChanges();
return RedirectToAction("CreateQuestion", new { OrderNumber = 1, idTest = test.id });
}
[Authorize]
public ActionResult CreateQuestion(int OrderNumber,int idTest)
{
return View();
}
[Authorize]
[HttpPost]
public ActionResult CreateQuestion(Questions question)
{
TestEntities db = new TestEntities();
db.AddToQuestions(question);
db.SaveChanges();
return RedirectToAction("CreateQuestion", new {id = question.id, t = question.Type});
}
The problem is Create methods works right. It get parameter and adds it to DB. But similar method CreateQuestion displays message about question is null.
What do I wrong?
CreateQuestion view
<%# Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<test.su.Models.Questions>" %>
<asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server">
Создать вопрос
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2>Создать вопрос</h2>
<% using (Html.BeginForm("CreateQuestion","Test")) { %>
<%: Html.ValidationSummary(true) %>
<fieldset>
<legend>Вопрос</legend>
<div class="editor-label">
<%: Html.LabelFor(model => model.Type,"Тип вопроса") %>
</div>
<% // List of question types
List<SelectListItem> QuestionTypes = new List<SelectListItem>();
SelectListItem t = new SelectListItem();
t.Text = "Вопрос с вариантами ответа (флажки или радиокнопки)";
t.Value = "0";
QuestionTypes.Add(t);
t = new SelectListItem();
t.Text = "Вопрос со свободным ответом (текстовое поле)";
t.Value = "1";
QuestionTypes.Add(t);
%>
<div class="editor-field">
<%: Html.DropDownListFor(model => model.Type, QuestionTypes) %>
<%: Html.ValidationMessageFor(model => model.Type) %>
</div>
<%-- <div class="editor-label">
<%: Html.LabelFor(model => model.OrderNumber,"Порядковый номер вопроса") %>
<%: Html.EditorFor(model => model.OrderNumber) %>
<%: Html.ValidationMessageFor(model => model.OrderNumber) %>
</div>--%>
<div class="editor-label">
<%: Html.LabelFor(model => model.Question,"Текст вопроса") %>
</div>
<div class="editor-field">
<%: Html.TextAreaFor(model => model.Question,2,47,"") %>
<%: Html.ValidationMessageFor(model => model.Question) %>
</div>
<%: Html.HiddenFor(model => model.idTest) %>
<%: Html.ValidationMessageFor(model => model.idTest) %>
<%: Html.HiddenFor(model => model.OrderNumber ) %>
<%: Html.ValidationMessageFor( model => model.OrderNumber) %>
<p>
<input type="submit" value="Далее" />
</p>
</fieldset>
<% } %>
</asp:Content>

Answer 1

This is difficult to figure out without knowing the model. Someone else may provide a better answer, but here is the only thing I can think of for now:
If your Questions model looks like this:
public class Questions
{
int Id {get;set;}
string Name {get;set;}
string Description {get;set;}
}
What you can do, for now, is alter your controller to accept the individual parameters and create the object yourself. This might help you figure out which critical property in your Model is missing.
public ActionResult CreateQuestion(string Name, string Description)
{
//make the entity yourself
Questions newQuestion = new Questions()
{
Name = Name,
Description = Description
}
//your other code here
}
Now normally MVC is smart enough to bind your individual values in your form (view) to your model, but some critical value is missing and causing you issue. Once you've figured out what that is, you can actually restore your controller back to accepting only a Questions object.
Sorry I couldn't help you more.
Good Luck.