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POMVC custom viewmodel problems
 

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    <p>I'm a bit of an MVC newbie, so you'll have to forgive what I imagine is an elementary question.</p> <p>I created a custom viewmodel in order to have a multiselect list in my form:</p> <pre><code>public class CustomerFormViewModel { public Customer Customer { get; private set; } public MultiSelectList CustomerType { get; private set; } public CustomerFormViewModel(Customer customer) { Customer = customer // this returns a MultiSelectList: CustomerType = CustomerOptions.Get_CustomerTypes(null); } } </code></pre> <p>I found that my first attempt only captured the first value of the multiselect, and I guessed that this is because my create actions looked like this:</p> <pre><code> // GET: /Buyer/Create public ActionResult Create() { ... } // POST: /Buyer/Create [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Customer customer) { ... } </code></pre> <p>So, I decided to change it to this:</p> <pre><code> // GET: /Buyer/Create public ActionResult Create() { ... } // POST: /Buyer/Create [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(CustomerFormViewModel model) { ... } </code></pre> <p>So that I can get the full output from the MultiSelectList and parse it accordingly. Trouble is, this complains that there's no parameterless constructor for the viewmodel (and there isn't) - and I'm not sure the right way to go about fixing this. Nothing I've tried has worked and I really need some help!</p> <p>In case it helps, my view looks like this:</p> <pre><code>&lt;%@ Language="C#" Inherits="System.Web.Mvc.ViewUserControl&lt;MySite.Controllers.CustomerFormViewModel&gt;" %&gt; ... &lt;% using (Html.BeginForm()) &lt;%= Html.ListBox("CustomerType", Model.CustomerType)%&gt; ... </code></pre>
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