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POcheck/uncehck checkboxlist with jquery
 

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    <p>most examples i have seen online have a snippet where they use 2 checkboxes, one for just one checkbox (all) and the second is the checkboxlist. In myy case i have only one checkboxlist bound to datasource, example my datasource list options are(All,apple,orange,red,blue), I got most of it working except when everything is unchecked and i check the last item, example blue, it checks the ALL option. so not working properly. id is the id of the 'All' item in the list</p> <pre><code>&lt;asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"&gt; &lt;script src="Scripts/jquery-1.4.1.min.js" type="text/javascript"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; $(document).ready(function () { var id = "#&lt;%=cbOptions.ClientID %&gt;_0"; var checkboxlistid = "#&lt;%= cbOptions.ClientID %&gt;"; $(id).click(function () { $("#&lt;%= cbOptions.ClientID %&gt; input:checkbox").attr('checked', this.checked); }); $(checkboxlistid + " input:checkbox").click(function () { if ($(checkboxlistid).attr('value') != 0) { if ($(id).attr('checked') == true &amp;&amp; this.checked == false) { $(id).attr('checked', false); } else { if ($(id).attr('checked') == true &amp;&amp; this.checked == true) CheckSelectAll(); } } }); function CheckSelectAll() { var flag = true; $(checkboxlistid + " input:checkbox").each(function () { if ($(checkboxlistid).attr('value') != 0) { if (this.checked == false) { flag = false; } else { if ($(id).attr('checked') == true &amp;&amp; this.checked == false) { flag = false; } else { flag = true; } } } }); $(id).attr('checked', flag); } }); &lt;/script&gt; &lt;asp:CheckBoxList runat="server" ID="cbOptions" &gt; &lt;/asp:CheckBoxList&gt; &lt;/asp:Content&gt; </code></pre>
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    1. COGive some more information about other scripts and markup you have. I created a asp.net v2.0 website and copied all your script and markup and manually added the listItems to the CheckBoxList and the blue only checks blue and only all checks all
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      1. USXGreen
    2. COCan you provide the code in pure html/js please?
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      1. USNiklas
    3. COThere must be `id` conflicting in ur html; and google this `" Check/uncheck all all checkbox via jQuery "` and you will get a lot of results. ALL D BEST
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      1. USdiEcho
 

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