Model list is not returning to the Controller from view

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Hi,

i have a student class like below

C#

public class Student
    {
        public int stdId { set; get; }
        public string stdName { get; set; }
        public string dept { get; set; }
    }

and my controller code is

C#

public ActionResult Student()
       {

           List<Student> lstStd = new List<Student>() { new Student()
           { stdId = 103, stdName = "bharath", dept = "CSE" },
           new Student() { stdId = 104, stdName = "Hari", dept = "IT" } };

           return View(lstStd);
       }

       [HttpPost]
       public ActionResult Student(IEnumerable<Student> lstStd)
       {
           return View();
       }

and View code is

C#

@using NewMVC.Models
@model IEnumerable<Student>
<h2>
    @using (Html.BeginForm())
    {
        foreach (var data in Model)
        {
        <table>
            <tr>
                <td>Student Name is
                </td>
                <td>@Html.TextBoxFor(p => data.stdId)</td>
            </tr>
            <tr>
                <td>Student Id is
                </td>
                <td>@Html.TextBoxFor(p => data.stdName)</td>
            </tr>
            <tr>
                <td>Student Dept is
                </td>
                <td>@Html.TextBoxFor(p => data.dept)</td>
            </tr>
        </table>
        }
        <input type="submit" value="create" name="hi" />
    }
</h2>

when i am trying to get the binded model data from the view,the List<student> is coming as null.

Can any one please help me in finding the solution.

Thanks in advance..

Posted 30-Dec-13 23:08pm

Aaditya parcha

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rizwan muhammed khan gouri · Answer 1 · 2014-01-02T22:37:00

hello i hope this works for you.. used instead this

XML

List<Student> lstStd = new List<Student>() { new Student()
           { stdId = 103, stdName = "bharath", dept = "CSE" },
           new Student() { stdId = 104, stdName = "Hari", dept = "IT" } };

use

XML

List<Student> lstStd = new List<Student>() ;

lstStd.add(
{ new Student()
           { stdId = 103, stdName = "bharath", dept = "CSE" }});
lstStd.add(
           new Student() { stdId = 104, stdName = "Hari", dept = "IT" }} );

return View(lstStd);

if this not work then please give me comment what is happen...

ok

Dominic Abraham · Answer 2 · 2013-12-31T01:49:00

Hi
I made a small change in your source. Please check.

C#

public class StudentController : Controller
  {
      //
      // GET: /Student/

      public ActionResult Student()
      {
          StudentList stdlist = new StudentList();

          List<student> lstStd = new List<student>() { new Student()
          { stdId = 103, stdName = "bharath", dept = "CSE" },
          new Student() { stdId = 104, stdName = "Hari", dept = "IT" } };

          stdlist.students = lstStd;
          return View(stdlist);
      }

      [HttpPost]
      public ActionResult Student(StudentList stdlst)
      {
          return View();
      }

  }
  public class StudentList
  {
      public List<student> students { get; set; }
  }
  public class Student
  {
      public int stdId { set; get; }
      public string stdName { get; set; }
      public string dept { get; set; }
  }

View

C#

   @model MyMvcApp.Web.UI.Controllers.StudentList

<h2>
    @using (Html.BeginForm())
    {
       for(int i = 0; i < Model.students.Count(); i ++)
        {
        <table>
            <tr>
                <td>Student Name is
                </td>
                <td>@Html.TextBoxFor(p => Model.students[i].stdId)</td>
            </tr>
            <tr>
                <td>Student Id is
                </td>
                <td>@Html.TextBoxFor(p =>  Model.students[i].stdName)</td>
            </tr>
            <tr>
                <td>Student Dept is
                </td>
                <td>@Html.TextBoxFor(p =>  Model.students[i].dept)</td>
            </tr>
        </table>
        }
        <input type="submit" value="create" name="hi" />
    }
</h2>

Please check the following url, you may get some idea why it is not working with foreach.

http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx/[^]

**Vinay** Jade · Answer 3 · 2013-12-31T08:47:00

Solution 2

use following syntax:

C#

@using (Html.BeginForm(Action name,controller name))

eg in your code

C#

@using (Html.BeginForm(student,student))

Add breakpoints to codebehind to check flow of the execution

Posted 31-Dec-13 8:47am

Vinay Jade

Comments

Aaditya parcha 2-Jan-14 2:04am

Hi,
Thanks for the reply.

i tried the above suggested way.
but thats not wokring.can u tell me what is this do

thanks in advance

Vinay Jade 2-Jan-14 8:34am

add breakpoints and observe where it stops..
and i advise you,dont use foreach for insert and edit records cause we are adding or editing record one by one if you want to do bulk edit or insert i suggest you to use kendoui grid for kendoui grid visit following link for demo
http://demos.kendoui.com/web/grid/index.html
and go for batch editing option

Model list is not returning to the Controller from view

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