Using jQuery to find out Elements on the Page that do not have an ID attribute

March 21, 2010

Using jQuery to find out Elements on the Page that do not have an ID attribute

Sunday, March 21, 2010 Posted by Suprotim Agarwal
Labels: ASP.NET, jQuery

In this post, I will demo a simple selector to find out elements on the page that do not have an ID attribute declared on them

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Input Elements that do not have an ID attribute</title>
    <script  type="text/javascript"
    src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js">
    </script>
   
    <script type="text/javascript">
        $(function () {
            $('div :not([id])').css("border", "2px Black solid");
            // for only input elements
            //$('div input:not([id])').css("border", "2px Black solid");
        });
    </script>
</head>
<body>
    <div>
        <input id="Button1" type="button" value="button" />
        <input id="Text1" type="text" />
        <input type="password" />
        <input type="radio" />
        <input id="Checkbox1" type="checkbox" />
        <img src="images/Desert.jpg" height="200" width="200" />
    </div>
</body>
</html>

The code shown above uses the :not() selector to find elements without the id attribute and adds a black border around the elements.

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About The Author

Suprotim Agarwal, ASP.NET Architecture MVP works as an Architect Consultant and provides consultancy on how to design and develop Web applications.

Suprotim is also the founder and primary contributor to DevCurry, DotNetCurry and SQLServerCurry. He has also written an EBook 51 Recipes using jQuery with ASP.NET Controls.

Follow him on twitter @suprotimagarwal