Dynamic list of checkboxes and model binding

Question

I\'m trying to create a view that contains a list of checkboxes that is dynamically created from a database, and then retrieve the list of selected ones when the form is pos

Answer 1

Have you seen: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx?

We basically wrote our own control to render the HTML like

<label for="Products"> Select Products </label>
<ul class="checkBoxList">
<li>
    <input type="hidden" value="0" name="Products.Index">
    <input type="checkbox" value="3424" name="Products[0].Id" id="Products0">
    <label for="Products0">iPod touch 3rd Generation</label>
</li>
<li>
    <input type="hidden" value="1" name="Products.Index">
    <input type="checkbox" value="3123" name="Products[1].Id" id="Products1">
    <label for="Products1">Creative Zen</label>
</li>
</ul>
</div>

Model Looks Ok, we wrote a custom helper, so our aspx pages look like:

<%= Html.DropDownFor(m=>m.products) %>

If you follow phil haacks post, your model should automatically bind in your controller.

Answer 2

Also a good answer in this question: CheckBoxList multiple selections: difficulty in model bind back

It has a solution that uses a custom Editor Template.