How to get input data without refreshing data with AJAX? - javascript

I have a form. It is include two radio button and one input. Radio buttons are name hexadecimal to decimal and decimal to hexadecimal.
When I write text to input I need to show result without page refreshing.
For example 1 result -> 10 12 result->23 directly showing.
So I make a research I need to use AJAX inside PHP. But all examples working click button. I don't want to use button.
Can you give me a example post request same page in AJAX ?

Consider the following jQuery example.
$(function() {
$("#input").keyup(function(event) {
var input = $(this).val();
if ($("#dec").is(":checked")) {
$("#output").val(parseInt(input).toString(16));
} else {
$("#output").val(parseInt(input, 16));
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form id="myForm">
<div>
<input type="text" id="input" value="0" />
</div>
<div>
<input type="radio" value="decToHex" name="select" id="dec" checked="true" />
<label for="dec">Decimal to Hex</label>
</div>
<div>
<input type="radio" value="hexToDec" name="select" id="hex" />
<label for="hex">Hex to Decimal</label>
</div>
<div>
<input type="text" id="output" value="0" />
</div>
</form>

Related

Dynamic Javascript Form Validation

Please bear with me as I am a beginner when it comes to JavaScript !
I have a dymamic form that pulls information from a database. For each line in the database there is a new row of form fields and the select name incorporates the id from the database - this is all on the same form e.g
<select name="supplier<%=objRst.fields("returnpartid")%>" id="supplier<%=objRst.fields("returnpartid")%>" onchange="validatelink3(<%=objRst.fields("returnpartid")%>)">
<select name="STOCKACTION<%=objRst.fields("returnpartid")%>" id="STOCKACTION<%=objRst.fields("returnpartid")%>" onchange="validatelink3(<%=objRst.fields("returnpartid")%>)">
<select name="stockreason<%=objRst.fields("returnpartid")%>" id="stockreason<%=objRst.fields("returnpartid")%>">
<select name="creditaction<%=objRst.fields("returnpartid")%>" id="creditaction<%=objRst.fields("returnpartid")%>" onchange="validatelink3(<%=objRst.fields("returnpartid")%>)">
<select name="rejectreason<%=objRst.fields("returnpartid")%>" id="rejectreason<%=objRst.fields("returnpartid")%>">
Users are currently missing out data when they are saving the record and I want to prevent this, The save button saves ALL of the records in one go so some lines will be totally blank if they have not yet been processed.
If a user has started to fill in the row but not completed all the information for that record then I need to stop the form submission.
Take a look at Parsley. I use this to validate my login and create user page of my website. Let me know what you think of it!
This is a great javascript tool that utilizes jQuery to validate different forms. Its really nice as you can have it validate several different things such as max and or min text length. It is very easy to implement because all you need to do is add the identifiers to the HTML element.
EDIT:
To avoid a link only answer, here is the code that could be helpful.
<form id="demo-form" data-parsley-validate>
<label for="question">Do you code? *</label>
<p>
<input type="radio" name="question" value="true" required /> Yes
<input type="radio" name="question" value="false" /> No
</p>
<label for="languages">If yes, in which language(s)?</label>
<input type="text" class="form-control" name="languages" data-parsley-conditionalrequired='[" [name=\"question1\"]:checked", "yes"]' data-parsley-validate-if-empty data-parsley-success-class="" data-parsley-conditionalrequired-message="This value is required since you are a programmer!" />
<label for="question">Do you eat dog food? *</label>
<p>
<input type="radio" name="question2" value="yes" required /> Yes
<input type="radio" name="question2" value="no" /> No
</p>
<label for="why">If no, why?</label>
<input type="text" class="form-control" name="why" data-parsley-conditionalrequired='[" [name=\"question2\"]:checked", "no"]' data-parsley-validate-if-empty data-parsley-success-class="" data-parsley-conditionalrequired-message="This value is required since you do not eat dog food!" />
<input type="submit" class="btn btn-default pull-right" />
</form>
<script type="text/javascript">
window.ParsleyConfig = {
validators: {
conditionalrequired: {
fn: function (value, requirements) {
// if requirements[0] value does not meet requirements[1] expectation, field is required
if (requirements[1] == $(requirements[0]).val() && '' == value)
return false;
return true;
},
priority: 32
}
}
};
</script>
<script type="text/javascript" src="../../dist/parsley.js"></script>
EDIT 2:
This is also a simple html file that could do something close to what I think that you want:
<!DOCTYPE html>
<html>
<head>
<style>
.democlass {
color: red;
}
</style>
</head>
<body>
<h1>Hello World</h1>
<input id="test" type="checkbox" id="chk"/>asdfad
<form>
<textarea></textarea>
<button onclick="myFunction()">asd</button>
<form>
<p>If the check box is check the thing is required and if the box is not check then it is not required. So tell your form to only save the rows that have the box checked?</p>
<script>
function myFunction() {
if(document.getElementById("test").checked){
document.getElementsByTagName("textarea")[0].setAttribute("required", "true");
}
else{
document.getElementsByTagName("textarea")[0].removeAttribute("required");
}
}
</script>
</body>
</html>

If radio box is checked go to link

I am doing a quote website and i want if a user want to see most recent quotes to press the radio button and the page will display most recent quotes . I can not figure it out how to make the radio box to send to a certain page.
<input type="radio" name="order" id="noi" value="noi">
<label for="noi">Most Recent</label>
<input type="radio" name="order" id="vechi" value="vechi" >
<label for="vechi">Most Old</label>
<input type="radio" name="order" id="aprec" value="aprec" >
<label for="aprec">Most Liked</label>
Fiddle
I want to make something like this but without be need to press the submit button, but when radio box is checked be sent automaticaly to a link.
Don`t know if this is right or not but i have seen to other websites this kind of sort.
Is this possible without javascript or jquery?
http://jsfiddle.net/ryBs6/47/ - Update jsfiddle
$("input[type='radio']").on("click",function(){window.open($(this).attr("href"))})
anyway this would work , because if i right click and open link in new tab it works , but single click doesnt work, i dont know if this is disabled for security reasons or what !
http://jsfiddle.net/prollygeek/6vCdX/
<input type="radio" name="order" id="noi" value="noi">
<label for="noi">Most Recent</label>
If you REALLY don't want to use Javascript, try wrapping the input and the label in an anchor
<input type="radio" />
If you want to use some javascript, do
<input onclick="window.open('http://google.com');" />
Or if you don't want to use the onclick attribute, use ProllyGeek's answer (I like his answer the best):
$("input[type='radio']").on("click",function(){window.open($(this).attr("href"))})
<script>
$(function(){
$("input").change(function() {
if(this.checked) {
window.location = this.value;
}
});
});
</script>
<input type="radio" name="order" id="noi" value="http://stackoverflow.com">
<label for="noi">Most Recent</label>
<input type="radio" name="order" id="vechi" value="http://stackoverflow.com" >
<label for="vechi">Most Old</label>
<input type="radio" name="order" id="aprec" value="http://stackoverflow.com" >
<label for="aprec">Most Liked</label>
FIDDLE DEMO
Without jquery:
var inputs = document.getElementsByTagName('input');
Array.prototype.forEach.call(inputs, function(item){
item.addEventListener('change', function(e){;
location.href = e.srcElement.value; // Redirect to value
});
});
<input type="radio" data-href='https://www.google.co.in/?gfe_rd=cr&ei=9l5FU5L8C6KL8QfOz4GABA' name="order" id="noi" value="noi">
<label for="noi">Most Recent</label>
<input type="radio" data-href='https://www.google.co.in/?gfe_rd=cr&ei=9l5FU5L8C6KL8QfOz4GABA' name="order" id="vechi" value="vechi" >
<label for="vechi">Most Old</label>
<input type="radio" data-href='https://www.google.co.in/?gfe_rd=cr&ei=9l5FU5L8C6KL8QfOz4GABA' name="order" id="aprec" value="aprec" >
<label for="aprec">Most Liked</label>
This should be your html
$('input[type='radio']').click(function()
{
window.location=$(this).attr('data-href')
});
You js here
Demo
Now without javascript or jquery
<input type="radio" name="order" id="vechi" value="vechi" >

jQuery to Validate an Input Text Control based on Radio Selection

How do I validate that the input text corresponding to the radio option is checked?
For example, using the image above:
If Contact 1's E-Mail radio option is selected, Contact 1's E-Mail text field cannot be blank, but Contact 1's Phone and US Mail text fields are still permitted.
If Contact 2's US Mail radio option is selected, Contact 2's US Mail text field cannot be blank, but Contact 2's Phone and E-Mail text fields are still permitted.
I have built the form above using the HTML below, but you can play with my Fiddle here: fiddle.
BEGIN UPDATE: I have a newer fiddle with better code here:
fiddle2
It has more instructions in the HTML and a closer attempt at my jQuery. For some reason, though, it still does not seem to be doing anything.
END UPDATE
I have tried naming the fields so that my jQuery can parse them, but that does not mean there is not a better way.
<body>
<form name="jp2code" action="#" method="POST">
<fieldset>
<legend>Contact 1</legend>
<span>
<input type="radio" id="group1_PhoneRadio" name="group1"/>
<label for="group1_PhoneText">Phone:</label>
<input type="text" id="group1_PhoneText" name="group1_PhoneText"/>
<br/>
<input type="radio" id="group1_EMailRadio" name="group1"/>
<label for="group1_EMailText">E-Mail:</label>
<input type="text" id="group1_EMailText" name="group1_EMailText"/>
<br/>
<input type="radio" id="group1_USMailRadio" name="group1"/>
<label for="group1_USMailText">US Mail:</label>
<input type="text" id="group1_USMailText" name="group1_USMailText"/>
</span>
</fieldset>
<fieldset>
<legend>Contact 2</legend>
<span>
<input type="radio" id="group2_PhoneRadio" name="group2"/>
<label for="group2_PhoneText">Phone:</label>
<input type="text" id="group2_PhoneText" name="group2_PhoneText"/>
<br/>
<input type="radio" id="group2_EMailRadio" name="group2"/>
<label for="group2_EMailText">E-Mail:</label>
<input type="text" id="group2_EMailText" name="group2_EMaiText"/>
<br/>
<input type="radio" id="group2_USMailRadio" name="group2"/>
<label for="group2_USMailText">US Mail:</label>
<input type="text" id="group2_USMailText" name="group2_USMailText"/>
</span>
</fieldset>
<div>
<input type="submit" name="submit" value="submit" />
</div>
</form>
</body>
What is the best way to write the jQuery?
I am new to jQuery, but I attempted my hand at it based on some Show/hide examples.
What I created below does not work, but hopefully indicates what I am trying to accomplish.
$(function() {
$("input[type='radio']").change(function() { // when a radio button in the group changes
var id = $(this).id;
var index = id.indexOf('group');
if (index == 0) { // is there a better way to do this?
var groupN_Len = 7; // Length of 'groupN_'
var radio_Len = 5; // Length of 'radio'
var preStr = id.substring(0, groupN_Len);
$"input[name*='preStr']".validate = null; // clear validation for all text inputs in the group
var postStr = id.substring(groupN_Len + 1, id.Length() + 1 - radio_Len); // extract Phone, EMail, or USMail
$(preStr+postStr+'Text').validate({ rules: { name: { required: true } } });
}
});
});
To make sure that the radiobutton is checked for each field, add attribute required="" in one of the radiobuttons for each fieldset.
demo
OK, whatever radio button is selected in the Contact Group's Contact Preferences, that corresponding text field is required.
Here is where I am so far on my jQuery checking:
EDIT:
Modified with tilda's important detail about adding '.' to the class name.
Added Required Attribute: how to dynamically add REQUIRED attribute to textarea tag using jquery?
Removed Required Attribute: jquery removing html5 required attribute
Final code works and looks like this:
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.1/jquery.validate.js"></script>
<script type="text/javascript">
$(function() {
jQuery.validator.setDefaults({
debug: true,
success: "valid"
});
$("input[type='radio']").change(function() {
$('.'+$(this).attr('name')).each(function(index) {
$(this).removeAttr('required');
});
if($(this).is(':checked')) {
$('.'+$(this).attr('id')).each(function(index) {
$(this).prop('required',true);
});
}
});
$('#submit').click(function() {
$(this).validate();
});
});
Back to the HTML of the document: I did a lot of subtle editing to the text by creating specific ids and names for the radio buttons that matched up with the class names for the text controls.
Here is that end result:
<body>
<form name="jp2code" action="#" method="POST">
<div>For each field below, provide the Phone Number, E-Mail Address, and Street Address. <b>Indicate the preferred contact method using the radio button.</b></div>
<fieldset>
<legend>Contact 1</legend>
<span>
<input type="radio" id="group1_Phone" name="group1"/>
<label for="group1_Phone">Phone:</label>
<input type="text" name="group1_PhoneText" class="group1 group1_Phone" />
<br/>
<input type="radio" id="group1_EMail" name="group1"/>
<label for="group1_EMail">E-Mail:</label>
<input type="text" name="group1_EMailText" class="group1 group1_EMail" />
<br/>
<input type="radio" id="group1_USMail" name="group1"/>
<label for="group1_USMail">US Mail:</label>
<input type="text" name="group1_USMailText" class="group1 group1_USMail" />
</span>
</fieldset>
<fieldset>
<legend>Contact 2</legend>
<span>
<input type="radio" id="group2_Phone" name="group2"/>
<label for="group2_Phone">Phone:</label>
<input type="text" name="group2_PhoneText" class="group2 group2_Phone" />
<br/>
<input type="radio" id="group2_EMail" name="group2"/>
<label for="group2_EMail">E-Mail:</label>
<input type="text" name="group2_EMailText" class="group2 group2_EMail" />
<br/>
<input type="radio" id="group2_USMail" name="group2"/>
<label for="group2_USMail">US Mail:</label>
<input type="text" name="group2_USMailText" class="group2 group2_USMail" />
</span>
</fieldset>
<div>
<input type="submit" value="Send" id="submit"/>
</div>
</form>
</body>
Let me explain what is going on in the jQuery, using the HTML above:
When a radio button's checked state changes, each control with a class name that matches the radio button's name attribute has the required property removed.
If a radio button is checked (i.e. checked=true), then each control with a class name that matches the radio button's id attribute has the required property added.
Finally, the validator seems to have to be run on a single form control (not on individual text controls like I was doing).
Here is the sample Fiddle that I ended with: Fiddle v8
At tilda: You didn't say much, but what you did say helped a lot!

jQuery Radio Button function not working properly

I have a form with two radio buttons and a submit button which leads to a specific form based upon the user's selection.
I wanted to use jQuery to change between the two buttons but have gotten myself a bit lost.
Here is my javascript from another file in the proj:
function goTo()
{
var yesButton = $('#yesRad');
var noButton = $('#noRad');
if (yesButton[0].checked)
{
submitForm('yesForm') && noButton.Checked==false;
}
else (noButton[1].checked)
{
submitForm('noForm') && yesButton.Checked==false;
}
Inside the jsp I have the following code:
<form:form action="interested" commandName="user" name="yesForm" id="yesForm">
<input type="hidden" name="state" value="<c:out value="${requestScope.state}"/>" />
<input type="hidden" id="address" name="address" value="${user.address}" />
<input type="hidden" name="mode" value="1" />
<input type="radio" name ="radio"id="yesRad" value="yesForm" checked="checked" />Yes<br>
</form:form>
<form:form action="notinterested" commandName="user" name="noForm" id="noForm">
<input type="hidden" name="state" value="<c:out value="${requestScope.state}"/>" />
<input type="hidden" id="address" name="address" value="${user.address}" />
<input type="hidden" name="mode" value="1" />
<input type="radio" name="radio" id="noRad" value="noForm" />No<br>
</form:form>
Submit
<script>
$("#yesRad").change(function(){
var $input = $("#yesRad");
var $inputb = $("#noRad");
if($inputb.is(':checked'))
$("#yesRad").prop("checked", false);
else if($input.is(':checked'))
$("#yesRad").prop("checked",true) && $("#noRad").prop("checked",false);
});
</script>
I have gotten some functionality out of my jQuery but it's definitely far from correct..
I hope I was clear and thorough in my question. Thanks in advance!!
To begin with, don't use prop, use attr. prop is slower.
You've defined variables so let's not look them up again. In your if/else statement just use the variables.
I'm not entirely sure what you're trying to do with the &&. I suspect you're trying to set the value of the two inputs. If so, they should be separate statements. If inputb is checked there is no reason to set it to checked, so we can remove that piece.
You probably want this change to fire on both inputs.
$("#yesRad, #noRad").change(function(){
var $input = $("#yesRad");
var $inputb = $("#noRad");
if($inputb.is(':checked')){
$input.attr("checked", false);
} else if($input.is(':checked')){
$inputb.attr("checked",false);
}
});
Solved: Using javascript and taking the radio buttons out of the separate form elements.
First let's take a look at the JSP form elements involved:
<form:form action="interested" commandName="user" name="yesForm" id="yesForm">
<input type="hidden" name="state" value="<c:out value="${requestScope.state}"/>" />
<input type="hidden" id="address" name="address" value="${user.address}" />
</form:form>
<form:form action="notinterested" commandName="user" name="noForm" id="noForm">
<input type="hidden" name="state" value="<c:out value="${requestScope.state}"/>" />
<input type="hidden" id="address" name="address" value="${user.address}" />
</form:form>
<input name="radio" type="radio" id="Yes" value="yes" />Yes<br>
<input name="radio" type="radio" id="No" value="no"/>No<br>
What I did here was simply take the radio buttons out of the separate forms and grouped them together...pretty obvious; now let's look at the javascript file.
function goHere()
{
var yesButton = $('#Yes');
var noButton = $('#No');
var str ="Please select an option first then press the 'Submit' button";
if (yesButton[0].checked)
{
submitForm('yesForm');
}
else if (noButton[0].checked)
{
submitForm('noForm');
}
else
{
document.write(str.fontcolor.font("red"));
}
}
As you can see the function 'goHere();' is going to tell the submit button in the following code where we want to go based on the user's selection on our radio buttons.
Here's the call from our javascript function in a submit button on the form...
<div class="button-panel" id="Submit"><span class="buttons buttons-left"></span>
<button type="button" class="buttons buttons-middle" name="submitBtn" onClick="goHere();">Submit</button>
<span class="buttons buttons-right"></span>
That's it!! Simply put; sometimes, while it's invaluable to learn something new, if it's not broke--etc. Hope this helps someone later on down the line!

how to set form value with external select value

so i am using the play framework and I'm try to create multiple submit buttons that call the one form:
So what I have is a list of strings, and i would like to create two buttons that will go back to the server and complete an event, the first is send the second is cancel. What i would like to also do is set the source value equal to what is selected in the foo select object. How would I go about doing this? Do i need to create a javascript even that is fired from the form and then get the var inside that function and then fire off the submit? Im not 100% familiar with play framework and scala, so im not sure if i can get it somehow inside this code without using a new method.
#(myList: List[String], theForm: Form[Obj])
#import helper._
#main("myVar Controller") {
<select id="foo">
</select>
<table border="1">
<tr>
#for(myVar <- myList) {
<td>#myVar
#form(routes.Application.method()) {
<div id="hiddenForm" style="visibility:hidden">
<input type="text" name="commandID" id="commandID" value="10" /> //Send Code
<input type="text" name="source" id="source" value=**"Put selected value of foo here" />**
<input type="text" name="destination" id="destination" value="#myVar" />
</div>
<input type="submit" value="Send" />
}
#form(routes.Application.method()) {
<div id="hiddenForm" style="visibility:hidden">
<input type="text" name="commandID" id="commandID" value="18" /> //Undo code
<input type="text" name="source" id="source" value=**"Put selected value of foo here" />**
<input type="text" name="destination" id="destination" value="#myVar" />
</div>
<input type="submit" value="Undo" />
}
</td>
}
</tr>
</table>
}
First of all, the html isn't valid.
You should first make sure that there aren't elements that have the same id.
You have to use javascript to change a value in your form.
I'm not familiar with scalar or playframework, but if they allow you to use jQuery, I recommend the following solution.
$("#foo").bind("change", function(){$("#source").val($("#foo").val()));});​
example:
http://jsfiddle.net/RubenJonker/a8a8p/5
If they don't allow you to use jQuery, then you should put some javascript in the onchange event of the select.
<select onchange="document.getElementById('source').value = this.value">
</select>
example:
http://jsfiddle.net/RubenJonker/a8a8p/4
Incase anyone else has this problem I used the following to solve my problem: Thanks Ruup as your code was the reason why I solved the problem
html:
<select id="foo" >
<option></option>
<option value="test">test</option>
</select>
<input type="text" value="" name="field" id="field" />​
and javascript:
$(document).ready(function() {
obj = document.getElementById("foo");
obj.onchange = function()
{
var elements = document.getElementsByName('field');
for (i=0;i<elements.length;i++)
{
elements[i].value = $('#foo').val();
}
}; });

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