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POFilter td elements in a tr out, that are not displayed
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  1. POFilter td elements in a tr out, that are not displayed
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    copied!<p>I have a Datatable in asp.net that i want to modifiy. I select the <code>&lt;tr&gt;</code> rows of the Datatable with JQuery:</p> <pre><code>var rows = $("#dgInformation tr:gt(0)"); </code></pre> <p>However, the <code>&lt;tr&gt;</code>elements have multiple <code>&lt;td&gt;</code>elements and some of them are marked as <code>display:none</code>. How can i get the <code>rows</code>-variable without those hidden cells?</p> <p>The purpose of this is to check cells if they are different from each other and only one line for each difference should be displayed. If i dont filter the not displayed elements, they get also compared and i have lines, which are visually the same.</p> <p><strong>Update</strong> It works with just adding a CSS class to the <code>&lt;td&gt;</code>-elements that should be hidden. Then you have a clean DOM-Tree (i hope i can call it this way) in Firebug. The whole function below for reference:</p> <pre><code>function filterTable() { var rows = $("#dgInformation tr:gt(0)"); var prevRow = null; var counter = 2; rows.each(function (index) { if (prevRow !== null) { var i = 1; var changes = 0; $(this).children("td:visible").each(function () { if(i &gt; 2){ if ($(':nth-child(' + i + ')', $(prevRow)).html() != $(this).html()) { $(':nth-child(' + i + ')', $(prevRow)).css('backgroundColor', '#00FF00'); changes = changes + 1; } } i++; }); if(changes == 0) { $(prevRow).css('display','none'); $(prevRow).removeClass(); } else { $(prevRow).removeClass(); if(counter % 2 == 0) $(prevRow).addClass('dgItemStyle'); else $(prevRow).addClass('dgAlternatingItemStyle'); counter = counter + 1; } } prevRow = this; }); } </code></pre>
 

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