I have just started learning JavaScript, so I do not know much about it at this moment. I need suggestion regarding validation of input values which are actually in an array. My HTML looks like this:
User can add more input fields by adding "Add" button; I'm using JavaScript for that purpose. By default, only a couple of fields is shown. I want to validate these all fields using a loop or a number of loops, such that an alert appears if any field is left blank and also if any value in title[] array matches another value in that array and same for the second array url[] Examples of working would be something like this:
If Link# 1 is left blank: alert("Link# 1 is empty"); or If Link# 2 is left blank: alert("Link# 2 is empty"); or If Title# 1 is left blank: alert("Title# 1 is empty"); or If Title# 2 is left blank: alert("Title# 2 is empty"); or If Link# 1 == Link# 2: alert("Link# 1 is same as Link#2"); or If Link# 1 == Link# 3: alert("Link# 1 is same as Link#2"); or If Title# 1 == Title# 3: alert("Title# 1 is same as Title#3"); etc, etc.
The form contains 3 file input tags. The name for each is an array. This is for further processing by PHP script. I want to make sure at least one of the file input tags has selected a file.
The rest of the validation script works, but I get a 'not object' error when I include the section that checks the file input tags. Code:
This is in regards to Jrn Zaefferer's plug in.How do you customize input validation so that I can remove foullanguage?So that first name or last name doesn't have "fck you" or something
I need to validate two forms containing multiple input fields but want just one error message if any of the fields are left blank, the page is required to submit the users details (registration form). Also if any of these fields are left blank i don't want to be able to go to the next page on clicking the submit button
I have an array of input text boxes (txtDOBn) where n is created at load. On the onchange event I want to calc the age and show in adjacent input text boxes that are readonly and also arrays (an age calced for each DOB entered). I was going to use the datediff function in vbscript to do the calc. Code:
I have these test boxes mentioned below with the array sign I want to check for a validation for these text boxes for an integer value.how can I do it.I know how to do it for the normal one's but how to do for the one's with array[] symbol.
I have built my own simple shopping cart using HTML form and PHP code. I have a mySQL database table of products with 3 databae felds - product name, product price and product type. Customers can select multiple products to add to their shopping cart, and if one of the selected products has a special product type then an extra form field must be completed.
So when a customer selects products my PHP code selects all 3 product fields from the table and inputs the product type and product price to the shopping cart (i.e. stores them for later checkout) and I then store the product type in an array as a hidden form field e.g. <input type="hidden" name ="producttype[ ]" value="value="<?php echo $producttype; ?>"">
I then want to apply a javascript validation to ensure that the extra form field is selected whenever a slected product has a certin product type, something like this:
[Code]...
However that has no affect and I cannot get it to work. My javascript skills are not that great, so can anyone see where I am going wrong here and help me out here please? Perhaps I have got it totally wrong??
if (!document.new_page.allowed[].checked){ popupalert('allowed'); } else { this.form.submit(); }"></form>
This is a piece of the code I've written. It's supposed to check if one of the allowed[]-checkboxes is checked, and if not, to run function popupalert('allowed');. It's not working. Can someone tell me how to fix this?
I need to keep the 'NAME' as an array as above because of the form processing that is used after submit.
I was really hoping to use Javascript to validate the form and make sure that each checkbox group has at least one option selected , but my javascript messes up because the 'NAME' is Q1[] as opposed to Q1. I had been using:
<script> function validate() { if (!(mainform.Q1[0].checked || mainform.Q1[1].checked|| mainform.Q1[2].checked)) { alert('Please answer question 1.'); event.returnValue=false; }} </script>
but this only works when I name the checkboxes NAME="Q1". Is anyone aware of how to get the validate function to work (or another way of validating the form) even when the checkboxes and radio buttons are named like NAME="Q1[]".
I have an order form where a customer can select a number of artwork prints supplied by different artists and suppliers. The name, price, postage amount and other details for each of the prints are held in a table in a MySQL database. As postage amount may vary between prints and suppliers of the prints we must have the customer select postage per print - not the amount just yes or no. The customer may select as many of these prints as he desires - printa, printb, printc, printd etc. through to printz. Many of the prints are provided by separate individual suppliers and must therefore have postage paid for each ordered print and this is automatically added by the order form. However some prints are provided by the same supplier and only one postage fee needs to be chosen (yes or no), so these are not automatically added and the customer must choose to pay postage on only one of the prints (not all 3 if he orders 3 of them).
So for postage purposes I have a postage code on the table in the MySQL database. For example printa, printb and printc are all supplied by the same supplier so each have a linked postage code of A. Similarly others may also be linked using different postage codes e.g. printx and printy may have a postage code of B. So whenever a customer chooses a print that does not have a linked postage code then the postage fee is automatically selected for him and charged to the total. However where prints are linked to the same postage code we must allow the costomer to select postage (yes or no), but we must force him to select yes or no for at least one of the linked prints.
So to do this I need a javascript validation alert to force the customer to choose yes for postage for at least one of the prints, not necessarily all of them, where they have a linked postage code. To do that I can add the the postage linked code as an array for each print selected to a form hidden field so that my javascript can use the field as follows: <input type="hidden" name="postagearray[]" value="<? echo $postagecode; ?>">
For some reason when I have more that one button in the array only the first counts, meaning only when first is clicked is the button validation checked=true.[/quote]
Here is what I'm trying to do. I have a 12-digit (UPC-A) javascript validation script which works great. All I need now is a similar script for 8-digit (UPC-E) type script? I don't want to convert it to a 12-digit UPC-A before validating it as a 12-digit number. I would prefer to just be able to calc the number, as an 8-digit number, check digit and all, just like I am currently doing successfully with this 12-digit validation script: Code:
I have a javascript function which checks if the user has enteed certain text into an input or if they have entered any text at all before the submit button which submits the text is able to be activated. How can I enhance this so that if the user no text at all and only enters several spaces this will also not be allowed and will return false?
Example for FirstName data input: Characters a-z,A-Z, hyphen, space are permitted. 0-1, !@#$%^&*()- etc are not permitted.
The plugin looks great but I am not able to figure-out how to limit which characters an end-user is allowed to input. Not just which characters are permitted but also which characters are not permitted.
How can I do validation on a group of input fields, as long as one of the 3 fields have a value then it's valid,I've managed to group them, but it's showing up with 3 error messages instead of one. How can I get it to display just the one error msg for all 3 input fields?
<script language = "Javascript"> function echeck(str) { var at="@" var dot="." var lat=str.indexOf(at) var lstr=str.length var ldot=str.indexOf(dot) if (str.indexOf(at)==-1){ alert("Invalid Email") return false } ..... The form submits even if no input is provided. The database get updated with blank values.
Currently on my form if you your input dosn't pass my validation you will see an error message and red box will also appear around the input box. The issue is that if you will it out the box will not disappear until you hit submit. Obviously that is because I have PHP validate the form, but I would like for the red border to go away as soon as the conditions are met, which is why I thought, JS would be the best solution.
I know how to write a conditional state in JS but I am not sure ho to echo out different classes based on the conditions.
I am trying to create a script for checking that checks that the email address entered into two input boxes is the same when a submit button is clicked, I have these two input boxes <input type="text" name="user_email" id="user_email" /> <input type="text" name="user_email2" id="user_email2" />
This javascript code <script type="text/javascript"> var email1 = document.getElementById(user_email); var email2 = document.getElementById(user_email2); function checkEmail(){ if (email1 != email2){ alert("The two email addresses are not the same"); }} </script>
And this code for the button <input type="submit" name="submit" id="submit" onSubmit="checkEmail" /> However this code is not working.
I am using the jquery plugin and want the validation to upload only extension .doc but it does not validates the HTML5 input file when the name has brackets.[code]
I have the follow code: <script type ="text/javascript" > jQuery(document).ready(function() { jQuery('#selectone').change(function() { if(jQuery('#selectone option:selected').text() == 'General'){ jQuery("form[id=search]").attr('action', '/portal/search'); jQuery('form[id=search]').attr('id', 'cse-search-box1'); ..... But, W3C says: Line 150, Column 154: document type does not allow element "input" here because I am using input inside of <script> and it's wrong.
