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POHTTP POST from a ASP.NET MVC Ajax form does not include submit buttons
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  1. POHTTP POST from a ASP.NET MVC Ajax form does not include submit buttons
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    copied!<p>I am unable to determine which form submit button is clicked during an Ajax Form POST in ASP.NET MVC. I have a form that basically looks like:</p> <pre><code> &lt;% using (Ajax.BeginForm("Edit", new { code = Model.Code }, new AjaxOptions() { UpdateTargetId = "resultsDiv" })) {%&gt; &lt;p&gt; &lt;%= Html.TextBox("Name", Model.Name)%&gt; &lt;input id="submitButton1" name="submitAction" class="ajaxSubmitButton" type="submit" value="Button 1" /&gt; &lt;input id="submitButton2" name="submitAction" class="ajaxSubmitButton" type="submit" value="Button 2" /&gt; &lt;input id="testHiddenValue" name="testHiddenValue" type="hidden" value="hello world!" /&gt; &lt;/p&gt; &lt;% } %&gt; </code></pre> <p>After a standard HTTP POST (ie. JavaScript disabled), I get access to the following POST variables:</p> <ul> <li>Name = whatever</li> <li>submitAction = Button 1</li> <li>testHiddenValue = hello world!</li> </ul> <p>However, clicking that button with JavaScript enabled does not include the submitAction value. I have verified this by inspecting the POSTs with <a href="http://www.fiddler2.com/fiddler2/" rel="nofollow noreferrer">Fiddler</a>. </p> <p>My hunch is that the Microsoft Ajax library just doesn't serialize the values of the submit buttons. In any case, how can I get around this so my controller knows which button was clicked?</p> <hr> <p><strong>Edit:</strong> Yes, it looks like a bug in the Microsoft Ajax library (see below). To workaround this, I essentially added the following jQuery code:</p> <pre><code>$(document).ready(function() { $("#formId .ajaxSubmitButton").live("click", function() { $("#testHiddenValue").attr("value", $(this).attr("value")); }); }); </code></pre> <p>Then in my controller, if <code>Request.IsAjaxRequest() == true</code>, I can check the value of #testHiddenValue. Otherwise, I can look in <code>Request.Form["submitAction"]</code> and determine the correct course of action from there.</p> <p>Fairly clunky, but I can't really see an alternative.</p>
 

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