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POjQuery show/hide options from one select drop down, when option on other select dropdown is slected without changing current option
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  1. POjQuery show/hide options from one select drop down, when option on other select dropdown is slected without changing current option
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    copied!<p>Bit of a complex one here, not sure if it is possible.</p> <p>Below is a piece of jQuery which shows/hides options on one select drop down dependant on another select drop downs options. The code was written by a member here in response to a previous question. </p> <p>The code effectively hides the options in the 'layout_select' dependant on the option selected in the 'column_select'. However, if I select</p> <p>3 column + Layout 4 </p> <p>Upon pressing the save button the page reloads and the selected option becomes layout 3 again. The same happens if I select </p> <p>3 column + Layout 5 or 2 column + Layout 2</p> <p>I need the jQuery to keep the correct option selected upon refresh.</p> <p>This is what I have so far:</p> <pre><code>&lt;select name="column_select" id="column_select"&gt; &lt;option value="col1"&gt;1 column&lt;/option&gt; &lt;option value="col2"&gt;2 column&lt;/option&gt; &lt;option value="col3"&gt;3 column&lt;/option&gt; &lt;/select&gt; &lt;select name="layout_select" id="layout_select"&gt; &lt;!--Below shows when '1 column' is selected is hidden otherwise--&gt; &lt;option value="col1"&gt;none&lt;/option&gt; &lt;!--Below shows when '2 column' is selected is hidden otherwise--&gt; &lt;option value="col2_ms"&gt;layout 1&lt;/option&gt; &lt;option value="col2_sm"&gt;layout 2&lt;/option&gt; &lt;!--Below shows when '3 column' is selected is hidden otherwise--&gt; &lt;option value="col3_mss"&gt;layout 3&lt;/option&gt; &lt;option value="col3_ssm"&gt;layout 4&lt;/option&gt; &lt;option value="col3_sms"&gt;layout 5&lt;/option&gt; &lt;/select&gt; </code></pre> <p>The jQuery:</p> <pre><code>$(document).ready(function() { var optarray = $("#layout_select").children('option').map(function() { return { "value": this.value, "option": "&lt;option value='" + this.value + "'&gt;" + this.text + "&lt;/option&gt;" } }) $("#column_select").change(function() { $("#layout_select").children('option').remove(); var addoptarr = []; for (i = 0; i &lt; optarray.length; i++) { if (optarray[i].value.indexOf($(this).val()) &gt; -1) { addoptarr.push(optarray[i].option); } } $("#layout_select").html(addoptarr.join('')) }).change(); }) </code></pre> <p>Demo - <a href="http://jsfiddle.net/N7Xpb/1/" rel="nofollow">http://jsfiddle.net/N7Xpb/1/</a></p> <p>I am perplexed by javascript so any help would be greatly appreciated.</p>
 

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