How To Check Textbox Empty Or Not
Oct 9, 2009I creating a form, i want submit if it is not empty, how can i do it?
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Change Textbox Value With Script Only When It Is Empty?
Feb 1, 2011I've been teaching myself HTML and CSS for a while, and now I've moved into the world of Javascript (but I'm still very much a beginner). For practice, I've been building a sample sign up form for a mock website, and I'm having problems with the birthdate section. The idea I had was to have MM, DD, and YYYY be the default values of my 3 textboxes (as an example for users), then set the value to nothing when the box gained focus. That all works fine, but I ran into problems when I tried to write an if statement to set the value back to MM, DD, or YYYY if the value was still nothing when the user clicked away. As it is now it just replaces the text inputted into the textbox (which of course is not good). Any ideas for what the problem might be? code...
Another side question, if I set a variable equal to the value of a textbox, then change the value of the variable, does that also change the value of the textbox? or is the variable no longer associated with the textbox. Example code...
does document.form.textbox.value = blue? or is var a now completely independent of the textbox value?
Email Validation If Textbox Not Empty
Mar 4, 2008I want to say that if the email textbox is not empty, then do the Email validation, which does work on its own. It is part of a function.
View 6 Replies View RelatedNo Empty Entries For Textbox & Listbox Validation
Jan 28, 2010I have this form that validates a few textboxes & a dropdownlist. And when it is not filled in, the border of the textboxes and dropdownlist would turn red, followed by an alert message notifying which field have not been filled in.Else, the border will revert back to black, and the form will be submitted successfully. Right now, I would like to prevent the user from entering blanks (like entering a space to cheat the system). How should I tweak the codes to make it work?
View 1 Replies View RelatedCheck If The Form Is Empty
Apr 24, 2009I need a simple script that will check onclick if the user has entered something into the input text form. If they haven't then just alert that you must enter something to search for a term. I had something like this before, but the problem I was having was that it was alerting but right after you click okay it would continue on to the next page... Which kinda make the whole alert thing pointless... Also, I'm about sick in tired of not knowing JavaScript, where is some great sites to get my learn on?
View 6 Replies View RelatedCheck And See If Three Fields Are Empty?
Sep 12, 2011I am trying to check and see if three fields are empty and if they are then to alert the user saying to fill in one of the three fields. I tried this:
if (StreetNumber.value.length == 0) {
if (StreetName.value.length == 0) {
if (City.value.length == 0) {
alert("Please enter a street number, street name, or city.");
[Code]....
Check If A Span Is Empty?
Feb 4, 2010I need to check if a span is empty but every attempt at doing this has failed. This is in a for loop so it has to be able to change the span its checking.
var ids=new Array('PSN','XBL','xfire','steam','tweet','fbook');
for(i=0;i<=ids.length-1;i++)
{
if (document.getElementById(ids[i]).innerHTML == '')
[Code]....
Never runs... I have tried a few other things I've found on the internet but they don't see to work either.
I've debugged this and found out the code stops running on this line.
if (document.getElementById(ids[i]).innerHTML == '')
Check If Localstorage Is Empty?
Sep 19, 2011How do I check to see if HTML5 localstorage is empty?
I don't need to know what's inside just if there is anything inside.
Code:
This is returning empty all the time.
JQuery :: Check If Input Is Empty
Dec 26, 2011I have made a forum thats look like this:
<form action="" method="post" id="contactform">
<div id="name-wrap">
<label for="name" class="req">Namn</label><span>Fyll i ditt för- och efternamn</span>
[Code]....
JQuery :: Check If .load() Is Empty?
Jun 30, 2010I'm wondering how to check if load() is empty because if it is, I do not want to show()
$("#orderList").load("OrderListHandler.ashx?action=" + action + "&oid=" + sid +, function()
{
// if nothing came back from the ajax request to .ashx, then I need to hide()
$("#noOrdersContainer").show();
});
JQuery :: How To Check If A Select Is Empty
Sep 26, 2010I have
$('select#species').change(function()
{
if ($(this).val() == "")
{
[Code]....
I'm attempting to check if the #species combobox is empty, if its empty then alert empty.
That code seems like it should work, but it doesn't. How do I check if the selectbox value is ""?
-Rich
Registration - Check For Empty Textboxes?
Dec 25, 2011I'm doing a registration system and as you can see when i verify the fields, if it's empty it says that the FIELD_1 misses. And what i want is if the field is empty says that and then goes back, but i don't wanto the info already written disappears.I'm using ajax, i never worked with it, so i'm gonna ask you if i'm doing everything ok:registration form:
<!---------VALIDAAJAX---------->
<link rel="stylesheet" type="text/css" href="style_val.css" />
<script src="ajaxforms.js" type="text/javascript" language="javascript"></script>
[code]....
JQuery :: Check If Form Has Elements Or Is Empty?
Apr 10, 2011I have a form that is a regular form but in some cases it might be empty.
<form id="myform"></form>
or it might have some elements
<form id="myform"><input name="X" value="X" /><input name="Y" value="Y" /></form>
What is the proper way to count or check if the form has say inputs, select, textarea, etc..., or check if it's empty?
JQuery :: Empty Doesn't Check Values After Loading
May 7, 2009I'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?
If A Check Box Is Or Not Empty - Allow User To Have One Box Checked At Any Time In A Form
Mar 31, 2009I'm trying to figure out with Java Script how I would have Java Script check and see if a check box is or not empty. The goal is to only allow the user to have one box checked at any time in a form. That means, if they click on another one and there is already one checked, it would uncheck the one that was checked and make the one that the person checked on next checked.
View 4 Replies View RelatedCheck Value Of A Textbox In A Form?
Jul 23, 2005Tell me how to check the value of a textbox in a form,
1, the value must be only a positive number ( not 34ax43) , for input a stock number of product
2, the value must be positive komma and two digits max (eg 150,20) , for input price value
Check The Last Char Of The Input (textbox)?
May 2, 2009I have a question regarding the Submit Form. I have a few input textbox How can i check the last 4 character of input if it is ".php"
View 8 Replies View RelatedGetting A Integer Value From A Textbox - Check If It's Nan Or Null?
May 12, 2010I am pulling a value via JavaScript from a textbox.If the textbox is empty, it returns NaN.I want to return an empty string if it's null, empty,etc.What check do I do?if(NAN = tb.value) ?
View 8 Replies View RelatedHow To Check Characters / Digits In Textbox
Feb 17, 2009i am trying to check a character with another character which are in the same text box.when we are entering date,date in the first text box and month in another text box and year in another text box.now i want when i am trying to enter '0'in the character position when there is '0' at first character position it must raise an alert box as well as when i am trying to enter a digit greater than '1' at 2nd character position it must raise an alert box when there is '3' in the first character position.
View 3 Replies View RelatedCheck If The Textbox Matches The Pattern?
Feb 18, 2010I need to validate three textboxes and it will validate for numbers. How should I change my code to validate three textboxes?
Code:
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
[code]....
I need to use Javascript to validate 3 textboxes, whereby the users can only key in numbers (because they are phone numbers related fields). If any of the textbox is empty, display an alert message to show which textbox is empty. I do not want to show many alert messages to show that, for example, text1 and text2 are empty, it will show two alert messages. I would need to show one "summarized" alert message instead.Next, check if the textbox matches the pattern (which is to check if it has the skeleton of a phone number). If it is, show an alert message that it is alright. Else, show that it does not match.
Check Text In A Textbox Against Script Array?
Nov 9, 2010I have a text box and would like to see if the value of the input matches the values defined in a JavaScript array.[code]...
View 3 Replies View RelatedCheck When Textbox Value Has Changed In Button Onclick Event?
May 24, 2010I have a textbox, which has a default value and a button in my page.
In the button onclick event, i want to check if the value in the textbox has changed.
How to check if the textbox value has been changed in the button onclick event?
Check If The Selected Date In A Form Textbox Is Less Than Today?
May 24, 2010What I want to do is to check if the selected date in a form textbox is less than today in which case an error message should be displayed. I tried to write the code myself, but unfortunatelly I miss something.Here are th lines:
Code:
function dateValidation()
{
var obj = book.dc1.value;
var day = obj.value.split("/")[0];
var month = obj.value.split("/")[1];
[Code]...
Check "all Fields Are Empty" On A Form?
Oct 5, 2011<form name="form2" onSubmit="validateForm2()" action="" method="POST">
<table>
<tr>
<td> <select name="smonth"> <!--some options--> </select></td>
<td><input readonly="readonly" name="day" type="text" size="23"></td>
</tr>
[Code]...
Making Check Box/textbox Invisible/visible Depending On User Action?
Oct 31, 2009Basically, i have a past and present checkbox, start date and leave date. Now if the user clicks on the "present" checkbox i want the leave date checkbox to vanish and if clicked again i want to re-appear..Take a look at this page:-http:[url].....
now you can see at the moment i have the checkboxes past, present and 2 text boxes beneath. Can i do this?
JQuery :: Check Textbox Values On The Front-end Before Submitting To Server-side Logic?
Feb 24, 2011I am new to jQuery, and learning more about Js by doing. I can hand-code HTML and CSS very well and understand OOP effectively. However, troubleshooting complex Javascript code combined with jQuery is a challenge to me, but I really want to learn. I am using Windows XP Professional and IE 8, FF 3.6.
[Code]...