Not Accept Empty Field And Negative Values And Characters

Dec 13, 2010

I have a problem in asp application validation. My textbox only accepts numeric value.It should not accept empty field and negative values and charcters.I am not aware of IsNan function.

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Validate Correct Entry In A Field As Well As It Can Accept Empty Field?

Feb 9, 2011

that a javascript which is validating a phone number accepts only digits but if the text field is left empty it should accept the entry as an empty entry...

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Setting Text Field To Accept Only Alphabetical Characters?

Oct 26, 2008

I am unable to solve two problems creating a contacts form using dreamweaver CS3. My other problem is posted under the heading, "Modify code created with Dreamweaver CS3, to compare two text feilds". For this posting, can someone please tell me how to modify my code, pasted below, so that the "First Name" and "Last Name" text fields are restricted to accepting only alphabetical characters.

Here's my current code

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.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>

[Code]...

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Field Validation Needs To Accept Decimal Values -- How Please?

Jul 20, 2005

I need this function to accept decimal values (e.g., 2.5 ok, not just whole numbers between 1 and 5).

I can't find this answer...

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Accept Only Letters In A Field

Nov 24, 2002

Very simple, but useful - I just came up with this in answer to a post:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
<head>
<title>Letters ONLY</title>
<script type="text/javascript">
<!--
function alpha(e) {
var k;
document.all ? k = e.keyCode : k = e.which;
return ((k > 64 && k < 91) || (k > 96 && k < 123) || k == 8);
}
// -->
</script>
</head>
<body>
<div>
<form id="example" action="javascript://">
<input type="text" onkeypress="return alpha(event)" />
</form>
</div>
</body>
</html>

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Field That Can Only Accept Numbers?

Jan 27, 2009

provide the HTML/Javascript to ensure a field can only accept numbers? (I don't mean post-submit validation, but literally the field only accepts numerical input.)

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Remove Special Characters And Empty Spaces?

Nov 6, 2009

i have a special java code for input strings like:

Code:

<script type="text/javascript">
String.prototype.toCapitalCase = function() {
var re = /s/;
var words = this.split(re);

[Code]....

But i dont know how to make it work in <input> and this is also without spaces check ..

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Money Validation For A Field - Accept 2 Digits Decimal 000,000.00

Oct 15, 2010

I need to do javascript money validation for a field. the condtions are

1) depending on the Locale (not sure if this can be done in JS like US,Germany..)

2) verify if it has $,pound symbol, yen symbol..

3) group the digits either like 00,00,000 or 000,000,000

4) accept 2 digits decimal 000,000.00

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Regular Expression :: Check A Text Field Value To Accept Between 0-20

Aug 6, 2005

i'm fairly new to regular expression and want to know if it's possible to check a text field value. I need to only accept value between 0 and 20. I've got also a problem with the 0 value ... guess the script think it's false :

if(!Number(document.data.f_cat_1.value) || document.data.f_cat_1.value > 20){
alert('Your must enter a numeric value between 0 & 20 pts!');
document.data.f_cat_1.focus();
return false;
}

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Illegal Characters For Various Characters Within The Field Name

Jan 25, 2006

I am having problems with the code below (obviously) coming up with illegal character for various characters within the field name
which is: S_Gift Finder1_0

I have tried various ways of escaping the characters but to no avail.

I am unable to change the name of the field as it it comes from an external off-the-shelf package. Code ....

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Getting A JS Validation Code For Validating Numbers Such That Empty Space And Characters (including + And -)

Oct 12, 2010

I need a JS validation code for validating numbers such that,Empty space and characters(including + and -) shouldn't be allowed,there should be only one decimal point,spaces and characters between numbers also shouldn't be permitted.

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Setup A Textbox To Only Accept Specific Keys - Some Of The Function Keys Are Reading As The Same Values As Letters?

Oct 21, 2011

I am trying to setup a textbox to only accept specific keys. The problem is, some of the Function keys are reading as the same values as letters.Ex.

112 - F1 - p
113 - F2 - q
114 - F3 - r[code]....

Is there another way to allow the function keys without enabling all matching letters as well?

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Method To Remove Empty Array Values?

May 14, 2010

Is there a built in method to remove empty array elements?

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JQuery :: Form Validation And No Empty Values With JS

Jan 8, 2010

I want to prevent submitting a form if any of the field is empty. also if possible I would like to validate some basic things. All I want to use JQuery: How do I do that? I have no way and google points me to plugins. The things I want to do are lightweight and I don't need plugin Here is my form:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Login in Site</title>
<link rel="stylesheet" type="text/css" href="/loginsys/site.css" />
[Code]...

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Show Div When Input Field Not Empty?

Feb 8, 2009

I would like to hide a div when input type text is empty. And as soon as you start typing in the input type text field, a div below would appear.

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Rudimentary Empty Field Validator

Dec 1, 2005

<script type="text/javascript"><!--

function Validate_form(form) {

var fields = [];

this.add = function(element, err) {
if ( !('__validate' in form[element]) ) {
form[element].__validate = function() {
if (this.value=='') {
alert(err);
this.focus();
return false;
}
}

}
fields.push(form[element]);
}

this.check = function() {
var len = fields.length;
for (var i=0; i<len; i++)
if ( !fields[i].__validate() )
return false;

return true;
}
}

function form_onsubmit(form) {
var vform = new Validate_form(form);
vform.add('domain_name', 'The domain field is empty');
return(vform.check());
}
--></script>
<form name="signup" method="post" action="" onsubmit="return form_onsubmit();">
<input type="text" name="domain_name" />
<input type="submit" />
</form>

This is nothing special. just a basic empty field validator. it's probably not as efficient as it could be because it assigns the function to the various elements. It also only supports text fields. I was thinking of allowing a 3rd argument on Validate_form.add to accept something like Validate_form.stock.email/number/etc (functions). ah well..

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Displat An Alert When Field Box Is Empty Or With Certain Value?

Sep 15, 2009

I'm trying to get this code to work correctly. What I want it to do is to place a value in the field box then when the curser clicks there the field becomes blank.Ok, that part works.But I want it to display an alert if the submit button is clicked while the value is being displayed.Also, i want it to display an alert if the field has become blank and the submit button has been clicked.

Code:
<html><head>
<script type="text/javascript">

[code]....

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JQuery :: Empty Doesn't Check Values After Loading

May 7, 2009

I'm trying to select my textarea only if it is not empty. I have used :empty for this purpose. This works find when you load the page, however if you start typing in it still considers the value as it was when the page loads.

Example. If my textarea is empty when I load the page, it will consider it empty. If I starting typing in, and check if it is empty it still say it is empty.

The same vice versa. If my textarea has text when the page loads, then i clear that data, it still consider it filled not empty.

So how to make the check of :empty in real time?

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JQuery :: Enable Next Input Field When Not Empty?

Apr 1, 2010

I have disabled a file input field which has a textbox above it. I am trying to make it so that when there is text in the textbox the file field is enabled and disabled when it is emtpy.

I do not want to assign id's to the file inputs so im trying to use the current[code]...

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JQuery :: Find Out If A Input Field Is Empty?

Jul 14, 2011

I want to test if a input field is empty or not, if it is I don't want to execute the rest of the script. After googling I thought I might of found a solution but it doesn't appear to be working :( Even if the input field is empty my script still executes.The solution I found How do I test whether an element exists?The only thing I really add was:

if ($('#phone').length) before
$('#search_customer').blur(function() to test the input field
add_reservation.php

[code]....

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Prevent Characters From Field?

Nov 9, 2009

I'm looking to prevent various characters from being typed into a field.

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Show Hidden Field That Is Not Empty After Page Reload

Dec 14, 2009

I have a form and in the form is a checkbox use as a switch to hide and unhide a two textbox. When the other textbox is hide, the other is unhide such as the code below. When the user click the submit button on the first time and there is an error, it reloads and the id="fieldset.-in_honor" hide because it is set to hide initially but not empty. My problem is, I want to show the fieldset whichever is not empty after submit button is click and there is an error so user will not enter any more information to the other field. Is that possible?

/*toggle switch*/
<p><input type="checkbox" name="in_honor" value="" id="checkmemoriam" onclick="showHide(this.name);" />Please check to make this donation in honor of someone special.</p>
/*hide textbox but unhide when the switch is on or the checbox is check*/
<fieldset id="fieldset-in_honor" class="fieldgroup" style="display:none">
<legend class="hide">In Honor Of</legend>
<p>To make this donation in honor of someone special, please complete the two fields below:</p>
<div class="formfield" <?php echo highlight('donate_honor_name'); ?>>
<label for="donate_honor_name">Name:</label>
<input id="donate_honor_name" name="donate_honor_name" class="text" type="text" value="<?php safeEcho($form['donate_honor_name'])?>" />
<?php helper_error('donate_honor_name'); ?>
</div>
<div class="formfield" <?php echo highlight('donate_honor_acknowledgement'); ?>>
<label for="donate_honor_acknowledgement">Acknowledgement should be sent to:</label>
<textarea id="donate_honor_acknowledgement" name="donate_honor_acknowledgement"><?php safeEcho($form['donate_honor_acknowledgement'])?>

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Comma Separated Values - Form That Gets Values That A User Has Selected From A List Menu Field

Jul 6, 2009

I have a form that gets values that a user has selected from a list menu field, that end up like this added to the URL:[url]

Instead of the Field being mentioned more than once, how can I have it where it could mention the field once with the values coma separated eg:[url]

Would I use JS to change the URL? or VBscript?

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Numeric Characters Only In Form Field?

Oct 3, 2011

This has been asked before, and i've seen many of the previous posts. And tried for hours. But finally i've broken and have to ask for help. What am I doing wrong here?

var u=document.forms["lead"]["name"].value;
var v=document.forms["lead"]["city"].value;
var x=document.forms["lead"]["country"].value;
var y=document.forms["lead"]["mobile"].value;
var z=document.forms["lead"]["email"].value;

[Code]...

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Check If Field Is Numeric, But Allow Certain Characters..?

Oct 12, 2006

I am doing some basic form validation stuff and I have two fields (phone, fax) that I need to check if the characters enterred are numeric, but still allow + and () characters to be enterred. If anything else has been enterred to display an error message.

Can someone point me to a resource ( I searched, but couldn't find an obvious one!) or give me a rundown on some code here to help me out?

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Form Validation Field Values Not Saved If One Field Is Not Completed/invalid?

Feb 3, 2009

The following form validation script works, currently if one of the five fields are completed, a message appears the remaining field(s) must be completed etc. Although the information the user has inputted in the first field is cleared. How can this information be available, if there is one problem in the form it doesn't make sense that the user must re-input all the information again. I look forward to hearing your response,

function validate_form ( )
{
valid = true;

[code]....

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