To get listbox selected values in asp.net mvc3

Question

In asp.net Mvc3 razor, I have binded some data with dbcontext in my controller viewbag using selectlist

My controller..

public ActionResult Index()
        {
            ViewBag.students = new SelectList(db.StudentList, "StudentID", "StudentName");
            return View();
        }

Then I binded it to the ListBox using viewbag

My View..

@using (Html.BeginForm("Save", "Student"))
{    
    @Html.ValidationSummary(true)
    <div>
     @Html.ListBox("students")
    <p>
        <input type="submit" name="Save" id="Save" value="Save" />
    </p>
    </div>
}

Now, in my controller, in that Save action, I need to capture the listbox selected values I have tried the following

[AcceptVerbs(HttpVerbs.Post)]
        public ActionResult Save(FormCollection formValue) 
        {
            //need code to capture values                
            return View("Index");
        }

Could anyone help

Thanks in advance

Jomy John · Accepted Answer · 2012-10-15 06:04:14Z

3

Try the following

 @Html.ListBox("students",ViewBag.students )

From form collection get the value of 'students'. For that please refer the following page

Pulling ListBox selected items from FormCollection

For a nice implementation of listbox in MVC please read this article.

ASP.NET MVC Select List Example

edited Oct 15, 2012 at 6:04

answered Oct 15, 2012 at 5:45

Jomy John

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3 Comments

user1469330 Over a year ago

here I need to bind data to the listbox from database

Jomy John Over a year ago

Please read the last article. In that article see how data is filled in GetOptions() method. Instead of filling the hardcode value enumerate through table rows and fill data.

Jomy John Over a year ago

In your code in the following line replace the code as ViewBag.students = new SelectList(getStudents(), "StudentID", "StudentName"); Then make a method as getStudents which return studentID and studentName values from DB.

testCoder · Accepted Answer · 2012-10-15 05:44:28Z

0

Try that:

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

    public ActionResult Index()
    {
        var studentList = new List<Student>
                              {
                                  new Student {StudentID = 1, StudentName = "StudentName1"},
                                  new Student {StudentID = 2, StudentName = "StudentName2"},
                                  new Student {StudentID = 3, StudentName = "StudentName3"},
                                  new Student {StudentID = 4, StudentName = "StudentName4"}
                              };

        ViewBag.students = new SelectList(studentList, "StudentID", "StudentName");
        return View();
    } 

    [HttpPost]
    public ActionResult Save(String[] students)
    {
        return View();
    }

}

public class Student
{
    public int StudentID { get; set; }
    public string StudentName { get; set; }
}

answered Oct 15, 2012 at 5:44

testCoder

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2 Comments

user1469330 Over a year ago

here I need to bind data from database

testCoder Over a year ago

It is sample data, behavior the data will be definitely same, i don't want to post very huge db code to that question.

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