Question

My form keys are:

Request.Form.AllKeys
{string[9]}
    [0]: "__RequestVerificationToken"
    [1]: "stud.LastName[0]"
    [2]: "stud.FirstName[0]"
    [3]: "stud.Number[0]"
    [4]: "stud.LastName[1]"
    [5]: "stud.FirstName[1]"
    [6]: "stud.Number[1]"

They all have values.
My action looks like this:

        [ValidateAntiForgeryToken]
        [HttpPost]
        public ActionResult Add(Student[] stud)

Student class has properties :FirstName, LastName, Number.

The problem is that stud is null?
Isn’t a way to get it populated with submitted data, o or have to take the data from Request.Form

Answer 1

You should have this kind of values (note the changed [] location)

Request.Form.AllKeys
{string[9]}
    [0]: "__RequestVerificationToken"
    [1]: "stud[0].LastName"
    [2]: "stud[0].FirstName"
    [3]: "stud[0].Number"
    [4]: "stud[1].LastName"
    [5]: "stud[1].FirstName"
    [6]: "stud[1].Number"

Something wrong is going on in your views – generated inputs(and when submitted, form values) do not have ‘[]’ in right places in thier names. Take a look at this article by Phil Haack about model binding to a list.