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    <p>As Matthew said, if you don't want to change the URL and don't want to use javascript, your best option is a POST request to the server. In ASP.Net MVC this can be pretty neatly done, however. You'll need to modify the <strong><code>View</code></strong> with two additions, and add a new <strong><code>ActionMethod</code></strong>.</p> <p><strong>The View, part 1</strong><br> Add an extra form to your view (this is not allowed in WebForms, so it might feel a little strange, but it is perfectly fine in MVC).</p> <pre><code>&lt;form action="/myController/myView/&lt;%= (ViewData["fieldCount"]+ 1) %&gt;"&gt; &lt;input type="submit" value="Add custom field" /&gt; &lt;/form&gt; </code></pre> <p>Note the <code>fieldCount</code> variable - this should be passed down from the <code>Controller</code> as presented below:</p> <p><strong>The Controller</strong><br> Add the following <code>ActionMethod</code> to overload the one you currently have to display your form:</p> <pre><code>[AcceptVerbs(HttpVerbs.Post)] public ActionResult myView(int id) { ViewData["fieldCount"] = id; Return View(); } </code></pre> <p>I used the variable name <code>id</code> just so you wouldn't have to add another route.</p> <p><strong>The View, part 2</strong><br> Now, as you have a known fieldcount, so you can just loop out the fields on the view:</p> <pre><code>&lt;form action="/myController/SaveData/" method="post"&gt; ... &lt;% for(i=0; i&lt;int.TryParse(ViewData["fieldCount"]); i++) { %&gt; &lt;input type="text" name="customData" /&gt;&lt;br /&gt; &lt;% } %&gt; ... &lt;/form&gt; </code></pre> <p>Note that the two forms have different actions - that way, you will never have to worry that clicking one submit button will accidentally post the wrong data.</p>
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    1. POASP.Net MVC - Add field to a Create form with add link (without javascript)
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    1. USTomas Lycken
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    1. COThanks Tomas, this looks pretty neat. Though I cannot try it out right now, I'll be sure to try over the weekend and report back.
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    2. COThanks Tomas, I can't seem to get this to work though and dont understand a couple of things. That is not a problem though since I am happy with Matthew's solution. Firstly I get a compilation error in pt. 1 <form action... New Line in constant. Secondly I don't really understand how the rest of the form data gets populated back to the form in the controller action here.
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