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POjQuery: How to reset a dropdown field after using detach function
 

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  1. POjQuery: How to reset a dropdown field after using detach function
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    <p>I am using the code below to hide certain options in my dropdown field.</p> <p>Was banging my head over why, when I click on the first radio button, it works, but won't work for the others, then realized I need to reset the drop-down to its original options just after clicking another radio button.</p> <p>My app has a radio-button group, you click on that group of several radios and based on the value of the radio-button, one of the IF statements below runs.</p> <p>How do I reset a dropdown field to it's original or complete contents after using the detach function?</p> <p>I've tried these, but they do not work:</p> <pre><code>$('#3547').find('option:first').attr('selected', 'selected'); document.getElementById('3547').selectedIndex = 0; document.getElementById('3547').reset(); </code></pre> <p><strong>Code:</strong></p> <pre><code>var oldoptions = []; if (typeVal == "Art") { $('fieldset#section-417').show(); thisval = 'Art -'; $("#3547").append(oldoptions); oldoptions = $("#3547 option:not(:contains(" + thisval + "))").detach(); } if (typeVal == "Chrome") { $('fieldset#section-417').show(); thisval = 'Chrome -'; $("#3547").append(oldoptions); oldoptions = $("#3547 option:not(:contains(" + thisval + "))").detach(); } if (typeVal == "Web") { $('fieldset#section-417').show(); thisval = 'Web -'; $("#3547").append(oldoptions); oldoptions = $("#3547 option:not(:contains(" + thisval + "))").detach(); } </code></pre> <p><strong>re-clarification of functionality needed:</strong></p> <p>I want to restore all the options that were originally in the dropdown before I filtered some out, so for ex: on load, the dropdown contains 12 options. When the 'ART' radio is checked, then only 4 items are displayed in the dropdown. When I click on another radio button "Chrome" for example, I want the original 12 options restored to the dropdown, so the filter code can run again.</p>
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