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POASP.Net MVC Ajax form with jQuery validation
 

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    <p>I have an MVC view with a form built with the Ajax.BeginForm() helper method, and I'm trying to validate user input with the <a href="http://docs.jquery.com/plugins/validation" rel="noreferrer" title="jQuery Validation plugin">jQuery Validation plugin</a>. I get the plugin to highlight the inputs with invalid input data, but despite the invalid input the form is posted to the server.</p> <p>How do I stop this, and make sure that the data is only posted when the form validates?</p> <p>My code</p> <hr> <p>The form:</p> <pre><code>&lt;fieldset&gt; &lt;legend&gt;leave a message&lt;/legend&gt; &lt;% using (Ajax.BeginForm("Post", new AjaxOptions { UpdateTargetId = "GBPostList", InsertionMode = InsertionMode.InsertBefore, OnSuccess = "getGbPostSuccess", OnFailure = "showFaliure" })) { %&gt; &lt;div class="column" style="width: 230px;"&gt; &lt;p&gt; &lt;label for="Post.Header"&gt; Rubrik&lt;/label&gt; &lt;%= Html.TextBox("Post.Header", null, new { @style = "width: 200px;", @class="text required" }) %&gt;&lt;/p&gt; &lt;p&gt; &lt;label for="Post.Post"&gt; Meddelande&lt;/label&gt; &lt;%= Html.TextArea("Post.Post", new { @style = "width: 230px; height: 120px;" }) %&gt;&lt;/p&gt; &lt;/div&gt; &lt;p&gt; &lt;input type="submit" value="OK!" /&gt;&lt;/p&gt; &lt;/fieldset&gt; </code></pre> <hr> <p>The JavaScript validation:</p> <pre><code>$(document).ready(function() { // for highlight var elements = $("input[type!='submit'], textarea, select"); elements.focus(function() { $(this).parents('p').addClass('highlight'); }); elements.blur(function() { $(this).parents('p').removeClass('highlight'); }); // for validation $("form").validate(); }); </code></pre> <p><strong>EDIT:</strong> As I was getting downvotes for publishing follow-up problems and their solutions in answers, here is also the working validate method...</p> <pre><code>function ajaxValidate() { return $('form').validate({ rules: { "Post.Header": { required: true }, "Post.Post": { required: true, minlength: 3 } }, messages: { "Post.Header": "Please enter a header", "Post.Post": { required: "Please enter a message", minlength: "Your message must be 3 characters long" } } }).form(); } </code></pre>
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