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    <p>I'm not sure what do you mean 'collection variable names' and probably my solution is kind of magic you noticed.</p> <p>My solution is based on copying existing editor for element and altering input names via Javascript.</p> <p>First of all, we need to mark up our editor. This is a code of form outputs editor for collection</p> <pre><code> @for (var i = 0; i &lt; Model.Count; i++) { &lt;div class="contact-card"&gt; @Html.LabelFor(c =&gt; Model[i].FirstName, "First Name") @Html.TextBoxFor(c =&gt; Model[i].FirstName) &lt;br /&gt; @Html.LabelFor(c =&gt; Model[i].LastName, "Last Name") @Html.TextBoxFor(c =&gt; Model[i].LastName) &lt;br /&gt; @Html.LabelFor(c =&gt; Model[i].Email, "Email") @Html.TextBoxFor(c =&gt; Model[i].Email) &lt;br /&gt; @Html.LabelFor(c =&gt; Model[i].Phone, "Phone") @Html.TextBoxFor(c =&gt; Model[i].Phone) &lt;hr /&gt; &lt;/div&gt; } </code></pre> <p>Our editor is placed into div with class <code>contact-card</code>. On rendering, ASP.NET MVC gives names like <code>[0].FirstName</code>, <code>[0].LastName</code> ... <code>[22].FirstName</code>, <code>[22].LastName</code> to inputs used as property editors. On submitting Model Binder converts this to collection of entities based both on indexes and property names.</p> <p>Next we create javascript function that copies last editor and increases index in brackets by 1. On submitting it adds additional element to collection: </p> <pre><code>var lastContent = $("#contact-form .contact-card").last().clone(); $("#contact-form .contact-card").last().after(lastContent); $("#contact-form .contact-card") .last() .find("input") .each(function () { var currentName = $(this).attr("name"); var regex = /\[([0-9])\]/; var newName = currentName.replace(regex, '[' + (parseInt(currentName.match(regex)[1]) + 1) + ']'); $(this).val(''); $(this).attr('name', newName); }); </code></pre> <p>VOILA!! On submitting we will get one more element!</p>
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    1. PODynamically adding items into view and posting back to controller (ASP.NET MVC 4)
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    1. COHow do you handle it the collection is initially empty and you don't have the "last element"? Does this work when you remove some item? I thought the index has to be continous starting from 0.
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    2. COThis doesn't work if collection is initially empty. It works if some items were removed.
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