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POknockout Validation: Any option to apply the errorElementClass to parent of input?
 

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    <p>Does the Knockout validation plugin have any option to apply the error class to the parent or parent's-parent of the input in error? If not can anybody suggest an approach to modify knockout validation to do this?</p> <p>Please see the following fiddle for an example of what I'm trying to achieve. Out of the box knockout validation sets the class of the input, but I want it to instead set the class of the containing control-group:</p> <p><a href="http://jsfiddle.net/fbA4m/1/" rel="noreferrer">http://jsfiddle.net/fbA4m/1/</a></p> <p><strong>View</strong></p> <pre><code>&lt;p&gt;Clear the field and tab out of it to "see" the current behaviour - error class is added directly to the input by knockout validation. But I want to add class "error" to control-group containing the input instead of directly to the input.&lt;/p&gt; &lt;div class="form-horizontal"&gt; &lt;div class="control-group"&gt; &lt;label class="control-label"&gt;Field&lt;/label&gt; &lt;div class="controls"&gt; &lt;input type="text" data-bind="value: testField" class=""&gt; &lt;/div&gt; &lt;/div&gt; &lt;button data-bind="click: setErrorOnControlGroup"&gt;Click to see desired effect&lt;/button&gt; &lt;/div&gt; </code></pre> <p>Javascript</p> <pre><code>ko.validation.configure({ registerExtenders: true, messagesOnModified: true, decorateElement: true, errorClass: 'error', insertMessages: false, parseInputAttributes: true, messageTemplate: null }); var viewModel = { testField: ko.observable("123").extend({required: true}), setErrorOnControlGroup: function() { $("input.error").removeClass("error"); $(".control-group").addClass("error"); } }; ko.applyBindings(viewModel); </code></pre> <p><strong>Stylesheet</strong> (Illustrative only - I shouldn't need this because I want to the use the twitter bootstrap styles)</p> <pre><code>/*NOTE: This is not actually the style I want, it just illustrates the default behaviour of knockout validation*/ input.error { background-color: #aaffaa; } </code></pre> <p>I ask because I'm using twitter bootstrap styling and it uses the input's parent control-group element to style "error" inputs.</p>
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    1. COCan you put together a small working example, which shows what you are trying achieve?
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    2. COAlright I'll see if I can put together a fiddle for it.
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    3. COjsfiddle and "sample" code added
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