Richard Parnaby-King

Web Developer – PHP, Zend Framework and Actionscript 3

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Imagine you have created a web application for a small grocery shop, and as a free gift for signing up they are letting you have one free piece of fruit or one free punnet of berries. In a notification area you want to indicate to the user what type of gift they have chosen.

Using jQuery you can determine which optgroup a select option belongs to.

When populating a select element (the drop-down element) it is possible to group options together using an optgroup (meaning “options group”).

For example:
[html]

You have chosen nothing

[/html]

And here is the result:
Notice how you cannot select the label for the optgroup?

Using jQuery, this is how to get the optgroup of the selected option:
[javascript]
$(“select”).find(“option:selected”).each(function(){
var label = $(this).parent().attr(“label”);
$(“#reportingArea span”).html(label);
});
[/javascript]

Line one finds the selected option in our element, then returns it’s parent – the optgroup. In this example we retrieve the label of the optgroup and replace the report area span with it.

Category: HTML, jQuery

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  • ABOUT

    Having fifteen years of programming experience in PHP, Zend Framework and ActionScript3, I have a very strong working knowledge of object orientated programming.

    I am a PC Gamer! Playing FPS, RTS, RPG and the occasional MMO since 1996 I have a huge number of a variety of fast-paced games.

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