Solved

use jquery to call a function when a select option is selected

Posted on 2010-08-22
9
344 Views
Last Modified: 2013-11-19
Hello,

What is the best way to associate a jquery function with an html select input control (drop down box).  I want to call a jquery function each time I select an option in the select control and then based on the option value, perform some logic.  Thanks for the suggestions.
0
Comment
Question by:cgray1223
  • 5
  • 3
9 Comments
 

Author Comment

by:cgray1223
ID: 33498361
....one additional item I need to accomplish, I need to reload the page at the end of the function that gets attached to the selection option selection.
0
 
LVL 9

Expert Comment

by:Snarfles
ID: 33498368
Do your select like this

<select name="blah" style="width:150px;" onchange="yourcheckingfunction()" id="blah">
0
 
LVL 9

Accepted Solution

by:
Snarfles earned 250 total points
ID: 33498375
actually make it onchange="yourcheckingfunction(this.value)" so that the value of the selected option will be passed to the function.
0
 
LVL 9

Expert Comment

by:Snarfles
ID: 33498379
window.location.reload() might be the code you want to reload the page.
0
DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

 
LVL 82

Expert Comment

by:leakim971
ID: 33499970
To know when a new select option is selected you may use "change" : http://api.jquery.com/change/


$("#mySelect").change(function() {
      // check which option is selected
});
0
 
LVL 82

Expert Comment

by:leakim971
ID: 33499982
to get value of the selected option for the select having the id "mySelect" you may use :

$("option:selected", "#mySelect").val()
$("#mySelect").change(function() {
    if( $("option:selected", "#mySelect").val() == "10" ) {
          // do something when value of the option selected is 10
    }
});

Open in new window

0
 
LVL 82

Assisted Solution

by:leakim971
leakim971 earned 250 total points
ID: 33499986
test page :


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script language="javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<script language="javascript">
	$(document).ready(function() {
		$("#mySelect").change(function() {
			switch( $("option:selected", "#mySelect").val() ) {
				case "": alert("Select something!");break;
				case "1": alert("1");break;
				case "2": alert("2");break;
				case "3": alert("3");break;
				case "4": alert("4");break;
				default : alert(">5");break;
			}
		});
	});
</script>
</head>
<body>
<select id="mySelect">
	<option value="">Select something...</option>
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4" selected="selected">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
</select>
</body>
</html>

Open in new window

0
 
LVL 82

Expert Comment

by:leakim971
ID: 33499998
@Snarfles is right, to reload the page use : location.reload()

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<script language="javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
<script language="javascript">
	$(document).ready(function() {
		$("#mySelect").change(function() {
			switch( $("option:selected", "#mySelect").val() ) {
				case "": alert("Select something!");break;
				case "1": alert("1");break;
				case "2": alert("2");break;
				case "3": alert("3");break;
				case "4": alert("4");break;
				default : alert(">5");break;
			}
			location.reload();
		});
	});
</script>
</head>
<body>
<select id="mySelect">
	<option value="">Select something...</option>
	<option value="1">1</option>
	<option value="2">2</option>
	<option value="3">3</option>
	<option value="4" selected="selected">4</option>
	<option value="5">5</option>
	<option value="6">6</option>
</select>
</body>
</html>

Open in new window

0
 
LVL 82

Expert Comment

by:leakim971
ID: 33528027
Thanks for the points!
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Preface This is the third article about the EE Collaborative Login Project. A Better Website Login System (http://www.experts-exchange.com/A_2902.html) introduces the Login System and shows how to implement a login page. The EE Collaborative Logi…
Introduction Chart.js, used properly, can visually add a difference to your charting applications. It engages your visitors and allows them to interact with data they otherwise wouldn't be able to without expensive and complicated systems. For this…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now