I have below javascript code which dynamically add the DIV with checkbox.
var mainDiv = document.createElement('div');
mainDiv.className = 'field';
var innerDiv = document.createElement('div');
innerDiv.className = 'SelectAllCheckBox';
var newlabel = document.createElement("Label");
newlabel.innerHTML = "Select All";
var selectCheckbox = document.createElement('input');
selectCheckbox.type = "checkbox";
selectCheckbox.name = "selectCheckbox";
selectCheckbox.id = "selectCheckboxID";
selectCheckbox.checked = true;
innerDiv.appendChild(selectCheckbox);
innerDiv.appendChild(newlabel);
mainDiv.appendChild(innerDiv);
var BusinessUnitsContainerID = document.getElementById('BusinessUnitsContainer');
BusinessUnitsContainerID.parentNode.insertBefore(mainDiv,BusinessUnitsContainerID);
//$j('.Publications input[type=checkbox]').removeAttr('checked');
$evt.addEventHandler(selectCheckbox, "click", this.getDelegate(this._onSelectAllCheckBoxClick));
function _onSelectAllCheckBoxClick()
{
//(.Publications input[type=checkbox]) these are multiple checkboxes which are also created dynamically
var checkboxes = document.querySelectorAll('.Publications input[type=checkbox]');
for (var i =0; i < checkboxes.length; i++)
{
checkboxes[i].checked = $j("#selectCheckboxID").checked;
$j(checkboxes[i]).click(); //calling the click for the child checkboxes as they have there click event and I can't change that as it is application generated click event for them.
}
};
Don't know why my select all check box it behaving differently, now on first click it is not unchecking all the child checkboxes, however on second click it works fine.
Any idea what could be the reason?
EDIT:
//alert("Inside Select All");
var checkboxes = document.querySelectorAll('.Publications input[type=checkbox]');
//alert($("#selectCheckboxID").checked);
if($("#selectCheckboxID").checked)
{
for (var i =0; i < checkboxes.length; i++)
{
checkboxes[i].checked = true;
$j("#lblSelectAll").text("Check All");
$j(checkboxes[i]).click();
}
}
else
{
for (var i =0; i < checkboxes.length; i++)
{
checkboxes[i].checked = false;
$j("#lblSelectAll").text('Uncheck All');
$j(checkboxes[i]).click();
}
}
Above code I have written to test, how to make it short
Replace your _onSelectAllCheckBoxClick function with below and try
function _onSelectAllCheckBoxClick()
{
$('.Publications input[type=checkbox]').click(); // jQuery default selector format
// if above doesn't work use your format, comment above code and uncomment below code
// $j('.Publications input[type=checkbox]').click();
return true;
}
Related
I have a select tag of dynamically added elements. I need to add an event listener to each of the elements in the select tag except the first which:
adds the text of the element to a list,
makes the focus of the list the first element again, and
removes or hides the clicked element.
The first element is a 'none' element which doesn't need any event listener.
I've tried something like
for (var i = 0; i < array.length; i++)
{
var name = array[i];
var selectElement = document.getElementById(selectElementId);
addToSelectNode(document.getElementById(selectElementId), name);
var thisNode = selectElement.childNodes[i];
if (thisNode.value != "none")
{
thisNode.addEventListener("click", function(event)
{
appendNodeToList("artist-list", i);
selectElement.selectedIndex = 0;
selectElement.remove(selectElement.i);
selectElement.style.display = "none";
});
}
}
function addToSelectNode(element, optionText)
{
var newSelectElement = document.createElement("option");
newSelectElement.text = optionText;
element.add(newSelectElement);
}
function appendNodeToList(listId, text)
{
var newNode = document.createElement("LI");
var textNode = document.createTextNode(text);
newNode.appendChild(textNode);
document.getElementById(listId).appendChild(newNode);
}
Didn't work at all though
A few hours later I've solved my own question. The problem stemmed from trying to remove items in the select tag which just wasn't working - I'm nut sure if it's possible but making it disabled solved it. Anyway here's the result.
HTML:
<select id="artist-select-list">
<option value="none">none</option>
</select>
JavaScript:
window.onload = function()
{
var dropdown = document.getElementById("sampleDropdown");
var n = array.length;
// Loop to add to <select> dropdown
for (var i = 1; i <= n; i++)
{
addToSelectNode(dropdown, array[i - 1]);
}
// Loop to add id's to each element in the dropdown
for (var i = 0; i <= n; i++)
{
dropdown[i].id = "selectNum" + i;
}
// Loop to add event listener
for (var i = 0; i < dropdown.length; i++)
{
dropdown[i].addEventListener("click", function(event)
{
// Regardless of which option the user clicks move shown option to "none" (first index in dropdown)
dropdown.selectedIndex = 0;
if (event.target.id != "selectNum0")
{
// Disable once clicked
event.target.disabled = true;
// Do other things here in relation to event.target
}
});
}
}
var array =
[
"sampleText1", "sampleText2"
];
function addToSelectNode(element, optionText)
{
var newSelectElement = document.createElement("option");
newSelectElement.text = optionText;
element.add(newSelectElement);
}
I am creating a mozilla add on for a web page. Using the attached Javascript code I am able to create checkbox. The checkbox should replace with other checkbox depending on the selected value in dropdown. Onclick on dropdown I am calling fun_sub_cat function which is creating checkbox and also replacing but it replace only once. For eg: If there are 2 option in dropdown 1 and 2, Selecting option 1 checkbox values should 1,2,3 and for option 2 checkbox values should be a,b,c.
On Click function it creates checkbox and changing the value for the first time replaces the checkbox value as well however when I click 3rd time on dropdown or change the value, it does not work. It attains the 2nd time changed checkbox values.
var k = 0;
function fun_cat_sub() {
console.log("Value Changed");
var Myarry = "";
if(document.getElementById('sub_cat').value == 'Password Reset'){
Myarry = check_list1;
if(k == 0){
console.log("creating checkbox for the first time");
k = k+1;
for (var i = 0; i < Myarry.length; i++) {
var checkbox = document.createElement('input');
checkbox.type = "checkbox";
checkbox.id = "checkBox"+i;
checkbox.value = Myarry[i];
checkbox.class = "_class";
checkbox.appendAfter(br_3);
var lab_chk = document.createElement('label');
lab_chk.innerHTML = Myarry[i];
lab_chk.id = "lab_chk"+i;
lab_chk.value = Myarry[i];
lab_chk.style.marginLeft = "10px";
lab_chk.appendAfter(checkbox);
document.createElement('br').appendAfter(lab_chk);
}
}
else if(k != 0){
console.log("I am in 1st Loop");
checking(Myarry);
}
}
else {
Myarry = check_list2;
console.log("I am in 2nd Loop");
checking(Myarry);
}
}
function checking(Myarry){
console.log(Myarry.length);
for (var i = 0; i < Myarry.length; i++) {
var old_chk = document.getElementById('checkBox'+i);
var new_chk = document.createElement("input");
new_chk.type = "checkbox";
new_chk.id = "checkBox"+i;
new_chk.value = Myarry[i];
old_chk.parentNode.replaceChild(new_chk, old_chk);
var old_lab_chk = document.getElementById('lab_chk'+i);
var new_lab_chk = document.createElement('label');
new_lab_chk.innerHTML = Myarry[i];
new_lab_chk.style.marginLeft = "10px";
old_lab_chk.parentNode.replaceChild(new_lab_chk, old_lab_chk);
}
}
I'm activating a javascript function with a Jquery onclick button:
$('#on').click(function() {
var a = document.getElementsByTagName('a');
for (i = 0; i < a.length; i++) {
a[i].addEventListener('click', function() {
var span = document.createElement('span');
var text = document.createTextNode(this.innerHTML + " ");
span.appendChild(text);
document.getElementsByClassName('output')[0].appendChild(span);
})
}
});
The problem is if the button is clicked more than once the function will repeat more than once. In this case it will print the output multiple times. How can I modify the javascript function to only print one character per click?
Example:
http://jsfiddle.net/874Ljaq1/
Use the jQuery event binding method one
$('#on').one("click", function() {
var a = document.getElementsByTagName('a');
for (i = 0; i < a.length; i++) {
a[i].addEventListener('click', function() {
var span = document.createElement('span');
var text = document.createTextNode(this.innerHTML + " ");
span.appendChild(text);
document.getElementsByClassName('output')[0].appendChild(span);
})
}
});
You can use the jQuery .data() function to set a flag when the button has been clicked once, and only proceed if the flag is not set.
The code:
$('#on').click(function () {
// if we have a flag that indicates this button has been clicked before,
// don't do anything.
if ($(this).data('clicked'))
return;
$(this).data('clicked', true); // set the flag
var a = document.getElementsByTagName('a');
for (i = 0; i < a.length; i++) {
a[i].addEventListener('click', function () {
var span = document.createElement('span');
var text = document.createTextNode(this.innerHTML + " ");
span.appendChild(text);
document.getElementsByClassName('output')[0].appendChild(span);
})
}
});
The on click event that I add to an input in javascript isn't working in the proper manner.
My code so far looks like so:
function order(option) {
if(option.checked) {
document.getElementId("col_order").value = document.getElementById("col_order").value + " " + option.value;
}
}
...//somewhere further down
for(var i = 0; i < options.length; i++) {
var check = document.createElement("input");
var label = document.createElement("label");
var description = document.createTextNode(options[i]);
check.type = "checkbox";
check.name = "order_list[]";
check.value = options[i];
check.onclick = "order(check)"; //Problem here
label.appendChild(check);
label.appendChild(description);
element.appendChild(label);
}
I have also tried:
check.onclick = (function() { var option = check; return function() {order(option);}})();
The problem that I am having is the check.onlick line of code. When I add this with normal HTML:
<input type = "checkbox" name = "order_list[]" onclick = "order(this)" value = "randVal">randVal</input>
I don't have any problem whatsoever; the method executes with the intended results. Any thoughts?
Let me clarify: I make it to the order function just fine, but I never get into the if statement, even though the checkbox was just clicked
Use addEventListener instead, and even if it looks like it should work, you're overwriting the same variables on each iteration as there is no closure in for loops, so I would probably add a closure to avoid issues.
For a checkbox you would listen for the change event, not click
for(var j = 0; j < options.length; j++) {
(function(i) {
var check = document.createElement("input");
var label = document.createElement("label");
var description = document.createTextNode(options[i]);
check.type = "checkbox";
check.name = "order_list[]";
check.value = options[i];
check.addEventListener('change', function() {
if (this.checked) {
var col_order = document.getElementById("col_order");
col_order.value = col_order.value + " " + this.value;
}
}, false);
label.appendChild(check);
label.appendChild(description);
element.appendChild(label);
})(j);
}
FIDDLE
check.onclick = "order(check)"; assigns a String as an on-click handler. That doesn't work; the browser expects a function there:
check.onclick = function() {
order(check);
}
I am trying to go through a select list with 200+ entries and click on each one. When an element is clicked on it executes a function selectCountry() which adds a line to a table. I want to have it create a table with every option selected. The page of interest is at: http://www.world-statistics.org/result.php?code=ST.INT.ARVL?name=International%20tourism,%20number%20of%20arrivals.
So far I have the following, but it doesn't seem to work:
var sel = document.getElementById('selcountry');
var opts = sel.options;
for(var opt, j = 0; opt = opts[j]; j++) {selectCountry(opt.value)}
I am trying to do this in the console in Chrome.
One of the most useful features of dev tools is that when you write the name of a function, you get back its source code. Here's the source code for the selectCountry function:
function selectCountry(select) {
if (select.value == "000") return;
var option = select.options[select.selectedIndex];
var ul = select.parentNode.getElementsByTagName('ul')[0];
var choices = ul.getElementsByTagName('input');
for (var i = 0; i < choices.length; i++)
if (choices[i].value == option.value) {
$("#selcountry:selected").removeAttr("selected");
$('#selcountry').val('[]');
return;
}
var li = document.createElement('li');
var input = document.createElement('input');
var text = document.createTextNode(option.firstChild.data);
input.type = 'hidden';
input.name = 'countries[]';
input.value = option.value;
li.appendChild(input);
li.appendChild(text);
li.onclick = delCountry;
ul.appendChild(li);
addCountry(option.firstChild.data, option.value);
$("#selcountry:selected").removeAttr("selected");
$('#selcountry').val('');
}
Your flaw is now obvious. selectCountry accepts the entire select element as an argument as opposed to the select's value (which is a terrible design but meh). Instead of passing the value of the element, change its index:
var sel = document.getElementById('selcountry');
var opts = sel.options;
for(var i = 0; i < opts.length; i++) {
sel.selectedIndex = i
selectCountry(sel)
}