I want to carry out form validation for drop down lists. My website has 10 drop down lists. I want an alert message to be displayed whenever the user selects a blank field from a drop down list. One of the sample drop down list runs as follows:
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How can I include a function that displays an alert message whenever a user selects a blank option from the drop down list?
I have a three field contact form on an HTML5 page. Using CSS3/HTML5 techniques, the fields change state as the info is entered properly (green OK symbol if good, red "!" if not, etc). That all works as expected in all browsers.
My final hurdle is preventing the form being submitted with nothing entered in the fields. I have done hours of research and have tried several ways of writing the checkFeedbackForm function. My problem is that none of the solutions I've found are recognized by FireFox (mac and pc) and IE. They just ignore the javascript and allow the empty form to be emailed.
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I have a scenario where I have the following jquery
Code:
$("#frompdc<?php echo $JavaCnt;?>").change(function(){
var id = $('#id<?php echo $JavaCnt;?>').attr('value');
var frompdc = $('#frompdc<?php echo $JavaCnt;?>').attr('value');
var topdc = $('#topdc<?php echo $JavaCnt;?>').attr('value');
$.ajax({
type: "POST",
url: "AJ_Update.php",
data: "firm=y&id="+ id + "&frompdc=" + frompdc&topdc=" + topdc
});
And some php to insert this data
Code:
mysql_query("UPDATE TBLTRANSFERS SET FROMPDC = ".$_POST['frompdc'].", MOD_TS = '". $timenow ."' WHERE ID = ".$_POST['id']);
I'm trying to throw some validation in here which I can do in php (a language that I'm much more proficient in) but can't figure out how to get the two together. I want to be able to do a select against another table I have for both the frompdc and the topdc.
Code:
$tofpdcresult = mysql_query("SELECT * FROM tbltransferspdcexclusions where FROMPDC = '".$frompdc."' AND TOPDC = '".$topdc."'");
$tofpdcnum_rows = mysql_num_rows($tofpdcresult);
And if it exists I want to give a popup message to the user as well as blank out the field.
I'm struggling with two things:
How do I get ajax to run two queries and return the results to a popup window?
How do I blank out the field in the form?
i was just wondering how I would validate a drop down list.
<select name="additional-info" id="additional-info" style="font-family: Verdana; font-size: 8pt">
<option value=""></option>
<option value="Small">Small</option>
<option value="Medium">Medium</option>
<option value="Large">Large</option>
<option value="X Large">X Large</option>
<option value="XXL">XXL</option>
</select>
I submit via a link <a href> i don't know if thats any use. When the list is at nothing (the first opinon) I need an alert box to say select a size and to return false.
I want to do a form validation and it should return a message like "should not be empty" when the user leaves the field blank..
I have html code like this
Now I want to know how can i display alert message to the user saying that the particular label name should not be empty..
For eg.. here I want to display alert as "Did you find this article useful? field should not be empty".... (Assuming this is mandatory)
I have so many fields like this in my form(checkbox, radio buttons, etc...) and i want to display alert with label name...
How can I do this using javascript.. (I know how to do validation in javascript popping up the alert(without label name), But I am not sure how to display alert with label name))))
rm validation! I want this to be validated upon selection of the drop down list (not when it comes to submit button)I have 2 drop down lists:Starting date (June 5th, 6th 7th)Ending date (June 5th, 6th 7th)I want to write a script that would NOT ALLOW one to choose:- Starting date June 6th and Ending date June 5th- Starting date June 7th and Ending date June 6th- Starting date June 7th and Ending date June 5th
View 6 Replies View RelatedI'm looking for have a text field when a user clicks in the text field a drop list of values appears for the user selects from and populates the text box they clicked. Is there anywhere I can find this or something similar?
View 1 Replies View Relatedhow to create a somewhat simple form. The form will have text fields for 'Name', 'Phone', etc. What I want is to have a drop down list, which has different insurances to choose from (i.e. Medical Insurance, Dental Insurance, Senior products), and say when I choose 'Senior Products', new text fields pop up within the form to add their 'Address' and click a checkbox that states they authorize to be contacted. These new fields aren't visible unless they choose 'Senior Products' from the drop down list.
View 6 Replies View RelatedI have a form that has a pretty complicated combo box - a user starts typing text, it queries a database for matches, and displays the results to the user. The user can then select the match they desire and it has a value id, which I am currently sending to a hidden field in the form. So, for example: user starts typing in a movie name, Seven - it returns Seven and user selects it. The form submits the id of the movie seven (say 12) to a hidden field.
Where I am stumped: Once a user selects a movie title, I have another drop down select box that is to display the available formats of the movie by querying my database based on the product id (12) and returning the available formats in the list:
DVD
BLUERAY
VHS
I am pretty good at programming, but I cannot figure this out - how to make the select box fire and return results once the value for the textbox has been captured.
I am trying to create a drop down list which depend to the value selected from the previous drop down list. I can add it without problem, but If I change again the value of the first drop down list I would like to remove the previous drop down list generated from the first value. If I try to remove it when I create the element, it even does not create the element, the remove element function seems to work because when you click on the remove link it works.
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I have a couple of forms which use JS validation and if the validation checks out the forms action is a new php page which sends the form (see code below). It all works fine but occasionally blank emails come through. After researching some people say I shouldn't use client side validation. Is there an easier way by tweaking the code I have rather than changing it all completely?
<script language="php">
$email = $HTTP_POST_VARS[email];
$mailto = "info@xxxxxxxx.com";
$mailsubj = "mail form";
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I have this list menu that needs to pop open a blank window in front of the already open webpage. It also needs to work in IE and hopefully Firefox if possible.[code]
View 1 Replies View RelatedThe following code is my form, if one of the fields is left blank (and there will usually be one left blank) the calculation returns NaN and will not perform the task needed. I initially had the form set to calculate in metric kilometers and liters, when I converted the math portion to miles and gallons it started doing this.This is the line giving me the problems:
var cars_emissions=(((mileage1/efficiency1)*0.3732417216/1000)+((mileage2/efficiency2)*0.3732417216/1000)+((mileage3/efficiency3)*0.3732417216/1000));
The original was:
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$('#enquiry').validate({
rules: {
Email: {
[code]....
My Javascript doesn't display an error when the "bid" field is blank but I want it to.Everything else works okay but I'm not a Javascript programmer so I don't know where to begin.
function checkBid(fieldName,minValue,maxValue){
var numberfield = fieldName;
if (chkNumeric(fieldName,minValue,maxValue) == false){
[code]....
When a user has entered text into form fields and hits the Save button, the text is saved into local storage. When they hit the Load button at a later date, the text fields are populated.If the user does NOT enter text and hits the Load button, the default empty text fields are populated with the word "undefined." How do I keep the field blank? Because if they do this accidentally, they'll be hitting the back button repeatedly to delete the word in every field (this is on an iPhone).Here is the Load code:
Code:
/*
* Insert data into form fields from local storage.
[code].....
what's wrong with this code to check if a text field is blank and either display/hide the <div> accordingly.
Code:
<SCRIPT language=javascript type=text/javascript>
function validateForm(order)
{
{
[Code]....
The <div> (id='name') is displayed if nothing is entered and the user clicks submit, however if the user then enters a value into the text field, and re-submits, the <div> still appears.
I am asking jQuery to tell me which drop down option is selected in a drop down list - like this:
I would like to check if this was successful before I proceed. What are the possible return values for this statement?
If no id exists.
If no option is selected.
If some other problem occurred.
In these cases am I expecting a null return; an undefined return, a false return value?
And, based upon the complete set of return possibilities, what would be the best and most comprehensive tests I could apply to cover every base.
I'm trying to set up a form that has a text field that is required to be blank - I'm dealing with form spam, and the bots are stuffing every text field with random crap. So, I have a text box that is required to be blank. But I can't get jquery.validate to understand both required and blank.the text input is has a name and id of live_check.I have added this method:
$.validator.addMethod("equalToParam", function(value, element, param) {return value == param;});
and then my rules look like this:
rules: {
first_name: "required",
last_name: "required",[code]...
But validate flags the empty text box as invalid (because it's required?)
There will be a pop up menu upon detection of a blank field and I need to stop further execution of the script. How do I achieve that?
<?php if ($email_to == ' ' )?>
<script language="JavaScript" type="text/javascript">
window.alert("Please enter your the to field. Thank you.");
</script>
I am developing a website as part of a university project and I have been trying to integrate the java script mailing list from this website into a page. [URL] The only modification I have made is to change the mailto address to my email. When I test the script it just opens a blank windows email with the correct address filled in. Is this because I am working on a copy on my hard drive? If I were to upload this to a server would it work correctly or would I have to modfiy the code in any way.
View 2 Replies View RelatedI have a table that has parts with multiple characteristics. Part Number, Height, Width, Capacity, Price, Etc. I would like to have a drop downs for all of these values, when a user selects one of these values it will filter the results into a list. Ex. user selects a part that has a Height of 6 and width of 10 it will only list those parts. As I said earlier, I have a script that will give me all the parts, however I am not able to make the onchange list parts with multiple values.
View 9 Replies View RelatedI have a page that displays a list of people playing in a tournament. I need to be able to generate a Leaderboard based on which players are manually selected by the admin. Next to each person there is a drop-down list. An admin can go in and select a "slot" that a player should be in on the leader board from 1 to 8, or leave it blank if none. What I need to figure out how to do is the following, when a change event happens on a drop-down list, and say the value 5 is selected, I need to check to make sure that 5 is not already selected in one of the other players drop-down lists, in other words, that the 5th leaderboard slot is not already full. if it is, display an error message and make them change that one first. how to do that with jQuery? I'm thinking it will have something to do with the each() function, but not sure exactly how the logic should work.
View 4 Replies View RelatedI am trying to validate a web form. Someone else wrote the Html code and implemented it with an iframe using asp and php. I didn't want to mess too much with the code so I decided to use javascript to make the form validate, before it was sending email alerts with every field blank. For the most part the validation works but it skips the email field for some reasons and is really bugging me to death. this is the code:
<head>
<link type="text/css" rel="stylesheet" href="CSS/style.css"/>
<title>Bid Form</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<script src="gen_validatorv4.js" type="text/javascript"></script>
<script type="text/javascript">
[Code]...
I have been struggling on a bit of code for a while now. I need to populate a second drop down list (Region) based upon the selection of the first (County).I have found a piece of code that works on its own and have adapted to suit my needs - see below. However, when I drop it into my main page the javascript is not working. It's because of the formObject but I just don't know enough to resolve this! Furthermore, I need the textboxes the user has already completed in the form to retain their value once the javascript kicks in as the completed form will submit to a database.This piece of code is working well . . . .
<?php
$link = mysql_connect('myhost', 'myusername', 'mypassword') or die('Could not connect: ' . mysql_error());
mysql_select_db('mydatabase') or die('Could not select database');[code]......
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
View 1 Replies View Related