save dynamically created controls data in database asp.net mvc

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C#

ASP.NET

MVC

I am creating controls using viewbag that has a list of item

public ActionResult Create()

        {
            var savedAdditionalFields = afs.getAllStudentFieldss(1);
            ViewBag.AdditionalFieldList = savedAdditionalFields;
            return View();
        }

In the view i am using

@using (Html.BeginForm()) {
        @Html.ValidationSummary(true)
    
        <fieldset>
            <legend>StudentAdditionalDetail</legend>

        @foreach (MyClass item in ViewBag.AdditionalFieldList)
            { 
                
            <div>
                
                @Html.DisplayFor(itemlist=>item.Name)

                @Html.EditorFor(model=>model.AdditionalInfo)
    
            </div>

}
The controls and labels are created.
Now i am saving the items in database using

[HttpPost]

     public ActionResult Create(StudentAdditionalDetail additionalFields)

            {   
                ads.AddAdditionalDetails(additionalFields);//calls the insert method

                return RedirectToAction("Index");

            }

But only the first Textbox's data is getting saved in database.I think i need to iterate my [HttpPost] Create Method.But not sure where should i put the code that will iterate throughout my Create View and all the items in

> model.AdditionalInfo

will be saved into database