Question

formatting a textbox with a specific format

Asked by: fmh002

hello,

i have a sort of validation that i need to implement in my form.

there are textboxes that should accept only numbers. as the user types the appropriate commas should appear accordingly.

example: the user types 25000 but in the text box it appears as 25,000 automatically.

i dont want the user to input points as there wont be any decimals in the values. he/she should only input the number.

could i get some help on it with javascript?

peace,
fmh002

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Asked On
2003-06-23 at 10:59:12ID20657253
Tags

format

,

textbox

,

text

,

box

Topic

Miscellaneous Web Development

Participating Experts
3
Points
70
Comments
32

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Answers

 

by: rdmjrbPosted on 2003-06-23 at 11:34:42ID: 8783618

Basically you would have a function that gets fired onKeyPress that firstly checks the user only types numbers and second checks the length and if the length is 3/6/9, etc then it sticks a ',' in the string.

This is a pretty complicated piece of javascript for only 30 points, however this is one of the best javascript sites I have come across: http://www.dynamicdrive.com that may help your cause.

 

by: jaysolomonPosted on 2003-06-23 at 11:58:43ID: 8783766

<html>
<head>
<title></title>
<script type="text/javascript">
<!--
function formatZip(objFormField){
  intFieldLength = objFormField.value.length;
  if(intFieldLength==2){
       objFormField.value = objFormField.value + ",";
            return false;
  }
}
//-->
</script>
</head>
<body>
<form name="form1" method="post" action="">
  <input type="text" name="zip" onKeyPress="formatZip(this)" maxlength="6">
</form>
</body>
</html>

 

by: jaysolomonPosted on 2003-06-23 at 12:01:42ID: 8783787

disregard the function name

<script type="text/javascript">
<!--
function formatField(objFormField){
  intFieldLength = objFormField.value.length;
  if(intFieldLength==2){
       objFormField.value = objFormField.value + ",";
            return false;
  }
}
//-->
</script>

 

by: jaysolomonPosted on 2003-06-23 at 12:02:23ID: 8783795

 <input type="text" name="zip" onKeyPress="formatField(this)" maxlength="6">

 

by: jaysolomonPosted on 2003-06-23 at 12:06:17ID: 8783818

oooppppssss

  <input type="text" name="numField" onKeyPress="formatField(this)" maxlength="6">

 

by: fmh002Posted on 2003-06-23 at 23:35:52ID: 8787255

thnx for the link rdmjrb, i would have given it 60 points but im out of points right now.

jaysolomon!!! sup? i see you got what i wanted. your script works fine with maxlength=6. in my environment it is a bit difficukt coz the digits always exceed the max length=6. i live in a country where a dollar costs a 1000 shillings.

i would like to go to a maximum of 9. could you help me with the commas? it's working fine right now coz in my question i gave a 6 digit example. i see my mistake.

thnx once again jaysolomon

fmh002

 

by: fmh002Posted on 2003-06-23 at 23:42:08ID: 8787274

i've also noticed that if i type in 2500 it gives it a comma as well -> 25,00... ooops.

 

by: fmh002Posted on 2003-06-24 at 03:53:48ID: 8788416

i'd also like have only numbers entered. at the moment there is no restriction on the input in your script.

peace,
fmh002

 

by: jaysolomonPosted on 2003-06-24 at 05:03:47ID: 8788752

here is a link that may be very helpful.

Try it out and if you still need help just let me know. I will continue to write a shorter script.

jAy

 

by: jaysolomonPosted on 2003-06-24 at 05:10:08ID: 8788779

sh!t i forgot the link brb....

 

by: jaysolomonPosted on 2003-06-24 at 05:13:55ID: 8788794

http://www.mredkj.com/javascript/numberFormat.html#tryit

there is the link

after you look at that and if you decide to go that route, we can then see your form and create the Number Only function

 

by: fmh002Posted on 2003-06-24 at 09:03:42ID: 8790425

sup jaysolomon

wow that script on that page is quite complex and trying to customize it for my form is way beyond my capabilities. but there's a setback, that try it button does the formatting. i am sure there must be a way to make that function trigger onkeypress or something? dont you think so? well, i have decided to go that route but that button shouldn't do the function, it should be done on the textbox itself.

peace
fmh002

 

by: fmh002Posted on 2003-06-24 at 09:05:50ID: 8790442

that script has many functions, could you make it shorter? do only the comma placements

 

by: fmh002Posted on 2003-06-25 at 08:54:23ID: 8798621

people i need help, i've increased points for that matter...

peace
fmh002

 

by: jaysolomonPosted on 2003-06-25 at 09:03:09ID: 8798689

is this going to be a currency format, or do you just want a comma

also is it always 5 numbers or what is the max amount of numbers

 

by: fmh002Posted on 2003-06-25 at 09:12:42ID: 8798777

i just want a comm and my max amount of numbers could be 9,999,999

 

by: jaysolomonPosted on 2003-06-25 at 13:01:34ID: 8800470

try this

<html>
<head>
<title></title>
<script type="text/javascript">
<!--
function addCommas() {
var x = document.forms[0];
var objRegExp  = new RegExp('(-?[0-9]+)([0-9]{3})');
    while(objRegExp.test(x.fieldName.value)) {
       x.fieldName.value = x.fieldName.value.replace(objRegExp, '$1,$2');
    }
}
//-->
</script>
</head>

<body>
<form name="form1" method="post" action="">
  <input type="text" name="fieldName" onChange="return addCommas();">
  <input type="text" name="textfield">
</form>
</body>
</html>

 

by: jaysolomonPosted on 2003-06-25 at 13:02:22ID: 8800477

i tried using onKeyPress, but it got screwed up

 

by: fmh002Posted on 2003-06-26 at 03:30:13ID: 8804472

thnx jaysolomon,

now i can atleast say that look, the commas do appear!

thnx man,
fmh002

 

by: jaysolomonPosted on 2003-06-26 at 04:55:29ID: 8804801

Uh why the grade of a "C"?

You asked for commas, thats what you got

 

by: fmh002Posted on 2003-06-26 at 08:45:09ID: 8806248

hey man im sorry for grading a C on that. i'd make it up to you if you could help me with some other problem i got.

 

by: jaysolomonPosted on 2003-06-26 at 08:49:12ID: 8806286

you can post a Question in Community Support asking them to change this grade.

Now whats the Problem?

 

by: fmh002Posted on 2003-06-26 at 08:54:09ID: 8806327

 

by: jaysolomonPosted on 2003-06-26 at 09:12:15ID: 8806469

Response.Write "<SELECT name=studentid onchange=""studentname.value = this.value;"">"


I think it should be like so

Response.Write "<SELECT name=studentid onchange='this.form.studentname.value = this.value;'>"

and

Response.Write "<SELECT name=studentname onchange='this.form.studentid.value = this.value;'>"


This is contredicting itself to me

and this is why you are getting the same results in the 2 DB fields

 

by: fmh002Posted on 2003-06-26 at 09:12:36ID: 8806474

i have already posted on the community support, jay am i ok with u now?

 

by: jaysolomonPosted on 2003-06-26 at 09:21:20ID: 8806538

no problem man

BTW, i don't know how the mods or admins will act when they  see the link to the other forum, so wait and see.

Did you understand the post about the problem

 

by: fmh002Posted on 2003-06-26 at 09:23:56ID: 8806561

i tried changing the code to the one you gave and it's still posting the same value (studentid) to both of the fields

 

by: fmh002Posted on 2003-06-26 at 09:27:25ID: 8806589

i am trying what that mohecan guy suggested, let me c if that works

 

by: YensidModPosted on 2003-06-26 at 12:59:40ID: 8808166

Grade will be changed from C to A per fmh002 request.

YensidMod
EE Moderator

 

by: jaysolomonPosted on 2003-06-26 at 13:05:04ID: 8808201

:>)

thanks

 

by: fmh002Posted on 2003-06-27 at 04:24:44ID: 8812492

jay it's working now. i tried chaging the code to what mohecan suggested and the posting's fine now.

im sorry for the points thing man. thnx

 

by: jaysolomonPosted on 2003-06-27 at 05:38:49ID: 8812859

No problem

Happy Programming

20120131-EE-VQP-002

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