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POASP.Net MVC Posted form values not mapping back onto viewmodel in controller
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  1. POASP.Net MVC Posted form values not mapping back onto viewmodel in controller
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    copied!<p>My ViewModel is:</p> <pre><code>public class ObjectiveVM { public string DateSelected { get; set; } public List&lt;string&gt; DatePeriod { get; set; } public IList&lt;ObList&gt; obList { get; set; } public class ObList { public int ObjectiveId { get; set; } public int AnalystId { get; set; } public string Title { get; set; } public string Description { get; set; } public string AnalystName { get; set; } public bool Include { get; set; } } } </code></pre> <p>This is passed to the view, populated as expected - and displays correctly in the view.</p> <p>My problem is when it is posted back to the controller. My controller code to accept it back is:</p> <pre><code>[HttpPost] [ValidateAntiForgeryToken] public ActionResult Analyst(ObjectiveVM ovm) </code></pre> <p><code>ovm.obList</code> is always showing as null:</p> <p><img src="https://i.stack.imgur.com/vanUi.png" alt="Showing posted values"></p> <p>My View html is:</p> <pre><code>@model Objectives.ViewModels.ObjectiveVM @{ ViewBag.Title = "Analyst"; } &lt;h2&gt;Copy Objectives for Analyst&lt;/h2&gt; @using (Html.BeginForm()) { @Html.AntiForgeryToken() @Html.ValidationSummary(true) &lt;fieldset&gt; &lt;legend&gt;Objective&lt;/legend&gt; @Html.DropDownListFor(model =&gt; model.DateSelected, new SelectList(Model.DatePeriod)) &lt;table&gt; &lt;tr&gt; &lt;th&gt; @Html.DisplayNameFor(model =&gt; model.obList[0].Include) &lt;/th&gt; &lt;th&gt; @Html.DisplayNameFor(model =&gt; model.obList[0].AnalystName) &lt;/th&gt; &lt;th&gt; @Html.DisplayNameFor(model =&gt; model.obList[0].Title) &lt;/th&gt; &lt;th&gt; @Html.DisplayNameFor(model =&gt; model.obList[0].Description) &lt;/th&gt; &lt;/tr&gt; @foreach (var obList in Model.obList) { &lt;tr&gt; &lt;td&gt; @Html.HiddenFor(modelItem =&gt; obList.ObjectiveId) @Html.HiddenFor(modelItem =&gt; obList.AnalystId) @Html.HiddenFor(modelItem =&gt; obList.Title) @Html.HiddenFor(modelItem =&gt; obList.Description) @Html.CheckBoxFor(modelItem =&gt; obList.Include) &lt;/td&gt; &lt;td&gt; @Html.DisplayFor(modelItem =&gt; obList.AnalystName) &lt;/td&gt; &lt;td&gt; @Html.DisplayFor(modelItem =&gt; obList.Title) &lt;/td&gt; &lt;td&gt; @Html.DisplayFor(modelItem =&gt; obList.Description) &lt;/td&gt; &lt;/tr&gt; } &lt;/table&gt; &lt;p&gt; &lt;input type="submit" value="Copy Selected Objectives" /&gt; &lt;/p&gt; &lt;/fieldset&gt; } @section Scripts { @Scripts.Render("~/bundles/jqueryval") } </code></pre> <p>Looking in Developer Tools at the Posted form values, they appear to be ok: <img src="https://i.stack.imgur.com/Yomfw.png" alt="Developer Tools"></p> <p>Can anyone see any reason the posted form values, are not mapping back onto my viewmodel in the Controller HTTP post?</p> <p>Thank you, Mark</p>
 

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