My html form has the content below:
<form name="profile">
...
<select id="province" name="province">
<span id="provinceWarning" class="alert"></span>
<option value="">Select Province</option>
<option value="AB">Alberta</option>
...
In my javascript, I'm trying to grab the form's ID to show a message telling the user to choose something in the dropdownlist if they haven't chosen anything and pressed the submit button. The problem is that the javascript block returns undefined.
//validate the profile form
function validate(e){
e.preventDefault();
var valid=true;
if(document.profile.province.value == ""){
document.getElementById('provinceWarning').innerHTML="*Please choose a province*";
valid=false;
}
if(valid){
alert("Thank You!");
}
return valid;
};
You can't have a span tag inside a select tag. Browser while rendering this HTML would have stripped it off.
See the demo below (check in your browser's dev tools that browser is stripping off span tag while rendering)
<select id="province" name="province">
<span id="provinceWarning" class="alert"></span>
<option value="">Select Province</option>
<option value="AB">Alberta</option>
</select>
You need to put the span tag outside the select tag.
Try this, it comes down and reset once u select and submit.
function submit(){
if(!document.getElementById("province").value){
document.getElementById("provinceWarning").innerHTML="*Please choose a Province*";
valid=false;
}else{
document.getElementById("provinceWarning").innerHTML=""
valid=true;
window.alert("thank you")
}
}
<form name="profile">
<select id="province" name="province">
<option value="">Select Province</option>
<option value="AB">Alberta</option>
</select>
<span id="provinceWarning" class="alert"></span>
</form>
<button id="btnSubmit" onclick="submit();">Submit</button>
Problems:
1- You can not define span in select option then move it out of your select
2- To check select value you should getElementById("province") and then check the value
3- Testable code can be as below(You can change it as you want):
function func()
{
var ddl = document.getElementById("province");
var selectedValue = ddl.options[ddl.selectedIndex].value;
if (selectedValue == ""){
document.getElementById("provinceWarning").innerHTML="*Please choose a Province*";
valid=false;
}else{
alert("Thank You!");
}
}
<form name="profile">
<div>
<span id="provinceWarning" class="alert"></span>
</div>
<div>
<select id="province" name="province">
<option value="">Select Province</option>
<option value="AB">Alberta</option>
</select>
</div>
</form>
<button id="btnSubmit" onclick="func();">Click Me</button>
Related
I need the textarea to be filled when "Other" is selected.
This is what I have, I thought it will work. But nothing shows up when other is selected and textarea is left blank.
html:
<form onsubmit="return validation()">
<span>Reason for inquiry: <span>
<select style="color:black" name="reasons">
<option value="catering">Catering</option>
<option value="private party">Private Party</option>
<option value="feedback">Feedback</option>
<option id="selectedOther" value="other">Other</option>
</select>
</form>
JS:
function validation(){
otherInquiry()
}
function otherInquiry(){
var x = document.getElementById("selectedOther").value;
if (document.getElementsByTagName("select") == x){
if(document.getElementById("txtArea").value == ""){
alert("Please tell us your reason of inquiry")
}
return false;
}
}
I have a html form where a select field and input box exist and I am using 2 class for that which is work_phone_class and work_phone_class_input.
I am calling ajax by trigger a save button with a class when select field value is changed or any option selected AND again calling ajax when user complete typing on input box. So that I am using following jQuery code :
$(".work_phone_class").change(function() {
$(".save_phone_class").trigger('click');
});
$(".work_phone_class_input").change(function() {
$(".save_phone_class").trigger('click');
});
Now I want to trigger the save button with the class when select field value is selected AND user completed typing on input box.
Update :
Html form is look like this. I think I have to use $(this) but not sure.
<select class="work_phone_class">
<option value=""></option>
<option value="1"></option>
</select>
<input type="text" class="work_phone_class_input">
<select class="work_phone_class">
<option value=""></option>
<option value="1"></option>
</select>
<input type="text" class="work_phone_class_input">
<select class="work_phone_class">
<option value=""></option>
<option value="1"></option>
</select>
<input type="text" class="work_phone_class_input">
I am no so clear about your requirement.... but i think this will help you
$(".work_phone_class,.work_phone_class_input").change(function() {
$(".work_phone_class_input").each(function(){
if($(this).val() == ""){
//// Validation goes here for input
return false;
}
})
$(".work_phone_class").each(function(){
if($(this).val() == undefined){
//// Validation goes here for input
return false;
}
//// trigger your save button click here
})
});
please let me know if it helps by marking it as an answer
You just have to add a test before send your ajax..
UPDATE
$(".save_phone_class").click(function(){
var allFilled = true;
$(".work_phone_class").each(function(){
if($(this).val()=="")
allFilled =false;
});
$(".work_phone_class_input").each(function(){
if($(this).val()=="")
allFilled =false;
});
if(allFilled)
{
//AJAX
}
});
$(".work_phone_class_save").click(function(){
var allFilled=true;
$(".work_phone_class_input").each(function(){
if($(this).val()=="")
allFilled=false;
});
$(".work_phone_class").each(function(){
if($(this).val()=="")
allFilled=false;
});
if(allFilled)
{
alert("Ajax sent");
}
else
alert("All input are not filled");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="work_phone_class">
<option value=""></option>
<option value="1">1</option>
</select>
<input type="text" class="work_phone_class_input">
<select class="work_phone_class">
<option value=""></option>
<option value="1">1</option>
</select>
<input type="text" class="work_phone_class_input">
<select class="work_phone_class">
<option value=""></option>
<option value="1">1</option>
</select>
<input type="text" class="work_phone_class_input">
<button class="work_phone_class_save">Save</button>
In my registration page, I'm gonna use two drop-down select that one of them should be hidden if its Negative and if its positive new drop-down will open to choose ...
In mysql table I've table as diabetes name with enom
enum('negative', 'insulin', 'drug', 'ndm', 'mody', '')
Here's my code:
<div><label for="diabetes">Diabetes:</label>
<select id="diabetes" name="diabetes">
<option value="negative">Negative</option>
<option value="">Positive</option>
</select>
</div>
<div><label for="diabetestype">Diabetes Type:</label>
<select id="diabetestype" name="diabetestype">
<option value="insulin">Insulin</option>
<option value="drug">Drug</option>
<option value="ndm">NDM</option>
<option value="mody">MODY</option>
</select>
</div>
For example: If Diabetes is negative value is negative as default then Diabetes Type is hidden
and
If Diabetes is positive then Diabetes type will be appeared to choose items.
those values like insulin, drug, mdm, mody should be inserted into this:
value="positive"
How can I make it through java script?
I can't add class or div or span. Is it possible just through JavaScript using ??
Thank you so much
Use jquery, it is comparatively easier.
$(document).ready(function(){
$("#diabetestype").hide();
$("#diabetes").on("change", function(){
var v = $(this).val();
if(v=="positive"){
$("#diabetestype").show();
}else{
$("#diabetestype").hide();
}
});
});
To make this code workable, you need to add value of Positive option also. So instead value="" change it to value="positive".
You can even hide the label also:
$(document).ready(function(){
$("#diabetestype").closest("div").hide();
$("#diabetes").on("change", function(){
var v = $(this).val();
if(v=="positive"){
$("#diabetestype").closest("div").show();
}else{
$("#diabetestype").closest("div").hide();
}
});
});
<div><label for="diabetes">Diabetes:</label>
<select id="diabet" name="diabet" onchange="checkDiabet();">
<option value="negative">Negative</option>
<option value="positive" id="isDiabet">Positive</option>
</select>
</div>
<div id="type" style="display: hidden;">
<label for="diabetestype">Diabetes Type:</label>
<select id="diabetestype" name="diabetestype">
<option value="insulin">Insulin</option>
<option value="drug">Drug</option>
<option value="ndm">NDM</option>
<option value="mody">MODY</option>
</select>
</div>
<script>
function checkDiabet() {
var isDiabet = document.getElementById("isDiabet").selected;
if (isDiabet == true) { document.getElementById("type").removeAttribute("style"); }
else { document.getElementById("type").style.display = "none"; }
}
</script>
First, set the first select to fire the function checkDiabet() by the attribute onchange. Then give the option an id, which needs to be checked, so you can access it easily.
Then, set the second select to display: none This could be done in a CSS header or file, or like in this case inline. (div style=""), also add an id to access it easily. (div id="type")
Now comes the function checkDiabete(). It checks if the select is selected (can be true or false (bool)). Is selected => show (div id="type"), if not, hide this div (and all of it's contents)
(if is already hidden, it then overwrites the (style="display: none;") with (style="display: none;))
That's it! :)
Try this:
function SelectDiabetes() {
var d = document.getElementById("diabetes").value;
var dType = document.getElementById("diabetestypebox");
if(d == "negative")
dType.style.display = "none";
else
dType.style.display = "block";
}
SelectDiabetes();
<div><label for="diabetes">Diabetes:</label>
<select id="diabetes" name="diabetes" onchange="SelectDiabetes(this.value);">
<option value="negative">Negative</option>
<option value="positive">Positive</option>
</select>
</div>
<div id="diabetestypebox"><label for="diabetestype">Diabetes Type:</label>
<select id="diabetestype" name="diabetestype">
<option value="insulin">Insulin</option>
<option value="drug">Drug</option>
<option value="ndm">NDM</option>
<option value="mody">MODY</option>
</select>
</div>
Call a js function onchange of select id diabetes
<div><label for="diabetes">Diabetes:</label>
<select id="diabetes" name="diabetes" onchange="toggleTypes()">
<option value="negative">Negative</option>
<option value="">Positive</option>
</select>
</div>
<div><label for="diabetestype">Diabetes Type:</label>
<select id="diabetestype" style="display:none" name="diabetestype">
<option value="insulin">Insulin</option>
<option value="drug">Drug</option>
<option value="ndm">NDM</option>
<option value="mody">MODY</option>
</select>
</div>
Use the following javascript
function toggleTypes(){
var el=document.getElementById('diabetes');
var medElem=document.getElementById('diabetestype');
if(el.value=='positive') {
medElem.style.display='block';
} else {
medElem.style.display='none';
}
}
I have here selectbox with option value USA and OTHERS. What I need is if I choose OTHERS on Selectbox1 the Selectbox2 should be display none and textbox1 comes out. Other problem also is it's name field, If I POST the value of name="cboState" . How to remove the name of a field? Any help will appreciate.
<form action="try.php" method="POST">
<select id="cboCountry">
<option value="USA">USA</option>
<option value="OTHERS">OTHERS</option>
</select>
Selectbox 2
<select id="cboState" name="cboState">
<option value="Alabama">Alabama</option>
</select>
Textbox 1
<input type="text" id="cboState" name="cboState"/>
<input type="submit">
</form>
Try this
HTML
<select id="cboCountry">
<option value="USA">USA</option>
<option value="OTHERS">OTHERS</option>
</select>
<select id="cboState" name="cboState">
<option value="Alabama">Alabama</option>
</select>
<input type="text" id="txtcboState" name="cboState" style="display:none;"/>
JS
$("#cboCountry").change(function() {
if ( $(this).val() == "OTHERS") {
$("#cboState").hide();
$("#txtcboState").show();
}
else{
$("#cboState").show();
$("#txtcboState").hide();
}
});
Note: ID Must be unique for each element.
To remove The name attribute of input, you can use the following
$("#txtcboState").removeAttr('name');
DEMO HERE
Something like this?
$("#selectbox1").onchange(function() { selectionChanged();});
function selectionChanged() {
if ( $("#selectbox1").val() == "other") {
$("#selectbox2").hide();
$("#textBox1").show();//should already be hidden
}
}
Make sure the IDs for your elements are unique.
I want to set validation on select tag in my form so that the user cannot proceed without choosing a location.
Below is the form...
<form name="form1">
Pickup Suburb:
<select id="pick" class="pick" name="pick"/><br />
<option value="none">-- Please select a location --</option>
<option value = 1>City </option>
<option value = 2>Airport </option>
<option value = 3>Abbotsbury </option>
<option value = 4>Abbotsford </option>
<option value = 5>Acacia Gardens </option>
<option value = 6>Agnes Banks </option>
<option value = 7>Airds </option>
<option value = 8>Akuna Bay </option>
</select>
<br />Rear facing baby seat
<select class="rfbs" name="rfbs" style="width:50px">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
</select><br />
<br />Booster seat
<select class="bs" name="bs" style="width:50px">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
</select>
<br />
<br />Luggage Trailer
<select class="lt" name="lt" style="width:50px">
<option value="0">0</option>
<option value="1">1</option>
</select>
<br />
<br /><input class="show-popup" type="submit" value="Get Quote">
</form>
I have applied a JavaScriptpopup window to show the results when user fills the form so is it possible to apply validation that shows an error message if the user tries to submit the form without choosing a location.
Any help would be highly appreciated.
Because select field has always been chosen value (default first option), you can just check:
if($('#pick').val()=='none') {
alert('choose some value');
return false;
}
The form element allows a onSubmit tag that will get called if the user tries to submit the form.
You could try something like this:
<form onsubmit="checkFormValidity()">
<select id="location" ... >
Then in your javascript you can then do something like this:
function checkFormValidity(){
var select = document.getElementById("location");
if(select.options.selectIndex == 0)
{
return false;
}
return true;
}
One line I would like to add to make sure that form will not be submitted
if($('#pick').val()=='none'){
alert('choose some value');
return false; // this is a missing line
}
Note: To use jQuery, you need to download it and add it to your web form
Edit:
<form id="form1" name="form1" method="post">
Pickup Suburb:
....
</select>
<br /><input class="show-popup" type="submit" value="Get Quote">
</form>
JavaScript
$( "#form1").submit(function( event ) {
if($('#pick').val()=='none'){
event.preventDefault(); //will prevent default form submission
alert("Please select one of the options provided");
return false;
}
});
You can check Demo on jsfiddle