?
Solved

How to use Javascript to allow only quarter increments such as .25, .5, .75, and .0

Posted on 2011-02-25
12
Medium Priority
?
782 Views
Last Modified: 2012-05-11
My HR Department wants to only allow quarter hour increments on an Acrobat form. I see it allows for custom Javascript validation. How can I use Javascript to allow only quarter increments on the end of the string such as .25, .5, .75, and .0
0
Comment
Question by:smetterd
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
  • 4
  • 2
12 Comments
 
LVL 29

Expert Comment

by:Badotz
ID: 34980903
This function will do what you need:


function bump(num) {
    return num += .25;
}

Open in new window

0
 
LVL 2

Author Comment

by:smetterd
ID: 34981049
Okay, but how would I enter is in to the acrobat field as a custom validation script where the form field is names "HOURSRow1" without the quotes?
0
 
LVL 29

Accepted Solution

by:
Badotz earned 2000 total points
ID: 34981152
Can you add

onclick="bump(this);"

to the form field declaration?

Change the function to:


function bump(obj) {
    if (obj.value) {
        
        var num = obj.value;
        
        if (isNaN(num) {
            return ""; // Not a number
        }
        else {
            return parseFloat(obj.value) += .25;
        }
    }
    else {
        return ""; // No VALUE attribute
    }
}

Open in new window

0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 2

Author Comment

by:smetterd
ID: 34982748
The only triggers I see are as follows

 Triggers
0
 
LVL 29

Expert Comment

by:Badotz
ID: 34983896
When do you want the value increased?
0
 
LVL 20

Expert Comment

by:Proculopsis
ID: 34986171

Try something like this:

<!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>http://www.experts-exchange.com/Programming/Languages/Scripting/JavaScript/Q_26847810.html</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
<script type="text/javascript"> 

jQuery(document).ready(function() {

  $("#check").click( checkQuarter );
  
});

function checkQuarter() {
  var value = parseFloat( $("#HOURSRow1").val() );
  var isValid = ( parseInt( value * 4 ) == value * 4 );

  alert( isValid );
}

</script>
</head>
<body>

  <input id="HOURSRow1" />
  <input id="check" value="Check" type="button" />

</body>
</html>

Open in new window

0
 
LVL 29

Expert Comment

by:Badotz
ID: 34986281
jQuery? Really? Hammer this thumbtack with a flaming meteorite the size of Texas?
0
 
LVL 20

Expert Comment

by:Proculopsis
ID: 34986418

<!-- jQuery? Really? Hammer this thumbtack with a flaming meteorite the size of Texas? -->

<form>
  <input id="HOURSRow1" />
  <input id="check" value="Check" type="button" onclick="alert( ( parseInt( this.form['HOURSRow1'].value * 4 ) == this.form['HOURSRow1'].value * 4 ) && !isNaN( parseFloat( this.form['HOURSRow1'].value ) ) );" />
</form>
0
 
LVL 2

Author Comment

by:smetterd
ID: 34997485
Badotz, I would like the value to be checked when the user tabs out of that field in the PDF. Thx for the help.
0
 
LVL 29

Expert Comment

by:Badotz
ID: 34998309
Then use the onblure event:

onblur="bump(this);"

Not sure exactly how to specify this in Acrobat-speak, though...
0
 
LVL 2

Author Comment

by:smetterd
ID: 34998447
Thank you Badotz!
0
 
LVL 29

Expert Comment

by:Badotz
ID: 34998500
No worries - glad to help.
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

PDF files have been in the limelight due to its unmatched features.  Personal documents, emails, business reports and eBooks are all converted into PDF files owing to peerless features provided by it. Adding watermark to a PDF file is a method to se…
Today, the web development industry is booming, and many people consider it to be their vocation. The question you may be asking yourself is – how do I become a web developer?
In this video, we show how to perform Bates Numbering/Stamping of PDF documents using Power PDF Advanced, the newest product from the Document Imaging division of Nuance Communications. There are two editions of Power PDF — Standard and Advanced. Th…
In this video, we show how to convert an image-only PDF file into a PDF Searchable Image file, that is, a file with both the image (typically from scanning) and text, which is created in an automated fashion with Optical Character Recognition (OCR) …
Suggested Courses

752 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