Checking For Invalid Data In An Input
Mar 10, 2011
I am wanting all the inputs of the table cells turn red when invalid data (in this case anything other than a number) is entered. Object:
1. To add a className to those inputs
2. With the new className 'invalid" the CSS gives a red background to the input The appending of the className is not showing up in the generated source code and both Firefox and Chrome is not showing any errors in the code. I can't not figure out what is preventing the execution.
[Code]...
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Jan 13, 2012
Is there a way to check the page for invalid usage (e.g. text boxes using .text which doesnt exist)? I originally thought I could use the .data("events") but then realize that .text and .val isn't an event which is pretty obvious but I'm stuck now. I already know my selector is $('input[type="text"]') but is there any way to see if anywhere on the page is improperly calling .text()?
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Jun 11, 2011
I have a signup form that the user fills out. Among other textboxes, there is an Email textbox, and a Password textbox. These are the two I want to do some Ajax work on.
Right now I'm choosing to go the onblur approach, but is there something better? I'd really like Ajax to go into affect when the user has stopped typing. I know there is key up and key down, but that won't really be too good for what I'm doing. Besides that though, this isn't the real problem.
My problem is this, when the onblur function is called, I want it to return text to a specific element on my HTML page depending on if the fields are valid or not.
Here's the part of my HTML page:
<div id="signuperrorsection">
<span class="error"></span>
<span class="valid"></span>
</div>
Anyway, if the email address for example is valid, I want the valid class to get the response. If it's invalid I want the error class to get the response.
Here's my javascript (right now I'm only trying to implement the Email field):
function checkErrors(str)
{
if (str=="")
{
[Code]....
Now the way I have this set up now, both classes are going to get the text, correct? Well I of course don't want that. I don't know how to have it set up so that only one class gets the response depending on what the result is.
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Oct 3, 2009
I'm a little curious with regards to alerting a user to invalid data in a form field through inline alerts, rather than alert boxes and without a page load.In otherwords, if someone types in invalid data into a form field, before they hit the submit button, I'd like to use javascript the insert some red text on the side saying "this is invalid".I'm concerned that people with visual disabilities wont notice it due to their screen readers.I.e. if the screen doesn't re-load, will the screen read read the nexly inserted text or will it not do anything until a new page loads?
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Jan 17, 2010
There is a missing part on my program, it is when you input less than or equal to 65 and greater than 100, a prompt will appear and say "Invalid Entry" and ask you to Input again an entry until you enter a valid entry. For example on Prelim Grade, I input 50, a prompt must appear to say "Invalid Entry" and ask me to input again another entry. Another is how will I terminate the program? When I input an invalid or a valid entry, it is continuing to ask me to input again an entry.Here is my code
Code:
<html>
<head>[code]......
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Aug 5, 2010
i am creating a simple form validation script where i will ask for the username, password and email of a user. when an error is created, a text will be displayed beside the textbox. but i want to know how i can add colors to the textbox if there is an error.
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Jun 16, 2011
Jquery code looks like:
$('#gal').rating('gl.php?gal_no=<?=$gal_no;?>&id=<?=$id;?>', {maxvalue:10,increment:.5, curvalue: <?=$cur;?>});
PHP code:
[code].....
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Mar 7, 2011
I have a javascript function which checks if the user has enteed certain text into an input or if they have entered any text at all before the submit button which submits the text is able to be activated. How can I enhance this so that if the user no text at all and only enters several spaces this will also not be allowed and will return false?
[Code]...
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Apr 24, 2011
This is my program:
And my question is how to make it display error if I have entered letters in the age box or numbers in a name box? Currently I have only if it is different from 1, so what should I write instead of 1 ?
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Jul 11, 2009
the validate plugin at the form at the below URL is validating as true as long as the first required input is valid even though subsequent required fields are invalid. It even gives the invalid class to all fields correctly but the submitHandler function is triggered anyway. I have an alert trigger when the form successfully submits and a little more output for firebug if you want it. [URL]
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Mar 17, 2006
I have a input field (text field) in my html page. User should give input as a string like following 12 345 678,0 If user gives input in format 12345678,0 and leves the input field how can I format the value 12345678,0 into format 12 345 678,0?
Are there any Javascript that can handle this with Regular Expressions?
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Jan 26, 2011
I have 2 windows - parent and children.
in parent
<form name="calc" action="" method="post">
<input value="0" type="text" name="pay" id="pay">
</form>
in child
<form name="payment" action="" method="post">
<input value="0" type="text" name="pay_str" id="pay_str">
</form>
how can i transfer data from parent input to child input?
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Jul 19, 2011
I have a list of products where they have minimum quantities in a hidden input. Some products have multiple colours, though the same minimum quantity and I'm trying to implement a jQuery check that entries made are at least equal to the minimum.
Blank or '0' entries are fine but if it's below the minimum quantity it should set to the minimum.
HTML:
Is there something obviously wrong with this? It isn't performing the minimum check and I'm really not sure why.
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Sep 26, 2010
I have a html page which just enter the coordinates of a city and appear that processes the data file javascript.
This is the part where I put the coordinates manually:
So far we have and everything worked .. just that I want to create a table with all names of cities, click on a city data appear to me ..
There is some code that could only enter the coordinates by clicking on the name of the city, instead of entering all the time coordinates?
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Oct 21, 2010
I have an HTML link (<a href='somepage.php'>......)
When someone clicks this, I would like to have a Javascript input box popup to accept some data, then have it pass the data in the url.
The ending result would be a jump to page: somepage.php?data=my%20input
I'm not even sure how to word a google search for this.
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Nov 18, 2010
I am trying to make a countdown that takes a users number from the text box and then counts down from there. I cant seem to get the user input into the loop.
<html>
<head>
<script language="Javascript">
[code]....
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Nov 15, 2011
I am playing about with javascript arrays.Have recently just sat today looking through w3c and going through pages in a w3c book i bought on javascript and ajex.if im wanting to display stuff to use a drop down box but i need to learn to use arrays as the course im studying in college is on javascript and i feel this would be beneficial for me personally to know.i want to know if its possible to as well as select data from the array but also to Input new data from a button that opens a prompt box for users to enter a new array object.
Code JavaScript:
<SCRIPT language="JavaScript">
<!--
function p_Names()[code].....
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Dec 11, 2010
I can get a value in a form input field with Javascript by doing this with an appropriate Javascript event and associated functions;
myval = parseInt(document.form_name.input_name);
or
myval = parseInt(getElementById(input_ID));
or put them in an array by
var val = new Array(2);
val[0] = parseInt(document.form_name.input_name);
val[1] = parseInt(document.form_name.input_name);
But how do I do this if the input name itself is a array like name= 'input_name[]'
or similarly if the input ID is an array i.e. ID= 'inputID[]'
I have tried a number if expressions but so far no luck.
Firebug will show the input ID like inputID0 or inputID1, but that doesn't seem to work for identifying the name or ID either.
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Nov 1, 2011
Auto copy data between 2 input?
Example;
1. input:
I want to copy the input entered in the above input data password2.
2.input:
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Dec 13, 2011
I'm trying to copy some data from an id to an input field when a drop down menu is changed
$(document).ready(function()
{
$("#reservation_copy").change(function()
{
[Code].....
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Jul 27, 2011
I am in the middle of designing a website and I am pretty new at it. The guy I am designing the website for wants me to make input fields that calculate data that is entered into them. There are 3 formulas that I need to make.
a=b*.262*c
c=a/(b*.262)
b=a/(c*.262)
They are the same formula just solving for different variables.
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May 20, 2010
I am trying to create a page that will pull data out of an input text box to a variable. I am then trying to take that data and punch it into a function, to eventually spit out the answer back on the web page. It has to do with telling the user to enter how many hours worked and their pay rate. I have included the code below. The problem I seem to be having is that I want to click a button to pull the data, then output the result in another script below the input boxes. I may have over done it with the functions, but what can I say..I'm lost! When I try to run it, I have the document.write cmd in there that is supposed to output the variable grossPay. Instead, it shows all the code instead of the value.
If I have something else wrong, or if I am making poor choices let me know. For some background, so far I am in the beginning stages of functions, if..else statements, so I am not trying to get crazy with this. Just something simple.
[Code]....
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Jan 8, 2012
how to copy an input field to an input field using a check box, what I want to do is copy data from an ID that has been populated with data using ajax and then select which data I want to copy depending on the drop down option selected. I can get the drop down box to alert the same data back that I want to copy but I can't display that data inside the input field.
step by step:
1. search for data with ajax and populate ID with data
2. use drop down box to select data to copy and copy it to input field
Tutorial I read
HTML CODE
This is the ID that already has data retrieved using ajax.
<tr>
<td width="18%">
Last, First
</td>
[Code]....
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Aug 2, 2011
I have a textbox and button in html, and when something is fill in the textbox, i want to pass the value of the textbox to ajax, data: '{"name": theName}', I couldn't seems to get it to work.
Of couse when i use string value, it works just perfectly for example: data: '{"name":
"Joe"}',
HTML Code
<input type="text" id="theName" name="theName" value="" />
<input id="callAjax" type="button" value="Submit" />
<script type="text/javascript" src="Default.js">
</script>
[Code].....
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Mar 27, 2010
After the apply button is clicked, the data entered by the user disappeared in the text form. How to keep the data appearing on the text form? The server use jsp and the Spring framework and the client use the Prototype javascript library.
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Apr 14, 2009
I need the input value of a textbox to be mixed of static and varaible data, Example:
<script type="text/javascript">
As you can see I use the "." dots for the splitting of the string and I pre-insert them into the "Value" of the textbox, but is it possible to do this without them being deletable or even better, have it so that for every number added the script inserts a dot?
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