How can I handle a dynamically created form submit? - asp.net

Question

How to handle dynamically generated form submit in asp.net mvc?
Form is dynamically created (number, order and type of elements are always different) and i have to handle it (store the data in the database) in the Controller of asp.net mvc (there is no viewstate). Type of input can be everything; hidden fields, radio buttons, check boxes, text inputs etc..
<% using (Html.BeginForm("AddAnswer","Research")){ %>
<%= Html.Hidden("page", ViewData["curentPage"]) %>
<% foreach (var item in Model){ %>
<span><%= Html.Encode(item.Text) %></span>
<%= Html.ActionLink("Edit", "Edit", new {id=item.QuestionID}) %>
|
<%= Html.ActionLink("Details", "Details", new { id=item.QuestionID })%>
<%switch (item.QuestionTipe.QuestionTipeID){
case 4:%>
<table>
<%foreach (var offeredAnswer in item.OfferedAnswer) {%>
<tr>
<td><%= Html.CheckBox("q" + item.QuestionID, false, new{ value = offeredAnswer.Number})%></td>
<td><%= offeredAnswer.Text%></td>
</tr>
<%}%>
</table>
<% break;
case 1:%>
<table>
<% foreach (var offeredAnswer in item.OfferedAnswer) {%>
<tr>
<td><%= Html.RadioButton("q" + item.QuestionID, false, new{ value = offeredAnswer.Number})%></td>
<td><%= offeredAnswer.Text%></td>
</tr>
<%}%>
</table>
<% break;
case 2:%>
<div style="width:220px; height:20px; padding-top:10px; padding-left:8px;">
<%= Html.TextBox("q" + item.QuestionID, null, new { style = "width:200px;"})%>
</div>
<% break;
case 3:%>
<div style="width:220px;height:20px; padding-top:10px;padding-left:8px;">
<div id="q<%= item.QuestionID %>" style="width:200px;" class="slider">
</div>
<%= Html.Hidden("q" + item.QuestionID, 0)%>
</div>
<% break;
}%>
<%}%>
<p>
<input type="submit" value="Sljedeća strana" />
</p>
<%}%>

Answer 1

In your action method, you can access FormCollection parameter, from there, you can access all your passed in values from your submit action.
public ActionResult YourActionMethod(FormCollection form)
{
}

Answer 2

In order to best help you decide how to process the form, it may be helpful to have some additional information.
Something is making the decision to generate this form, what is doing that? What is it basing its rendering on?
Are there known variations of the form that can be accounted for, or are the elements truly independent of each other?
Are each of the elements themselves known? If so, is it possible to give them a consistent id/name so that they may be recognized on the server-side?
When you speak of "handling" the submission, what is the end goal that you'd like to achieve? For example, are you parsing the form to store in a database?

Answer 3

foreach (var key in form.AllKeys) {
var answers = form.GetValues(key);
if (answers.Count() > 1){
foreach (var value in answers)
{
...
}
}
else
{
...
}
}
This is very simple. I'm checking if there is multiple values for some of the answers in the form.