I need some help :). Im trying to build a Javascript that goes through a gridview on my page and for each row checks the hiddenvalue that is stored in a certain cell of that row. It should then check this against a filtervalue and if it doesnt match hide the row in question.
How can I do this?
While not the most elegant, this should get you started in the right direction:
<script type="text/javascript">
function HideEvenValueRows() {
var tGrid = document.getElementById('<%= GridView1.ClientID%>');
for (var i = 0; i < tGrid.rows.length; ++i) {
var inputs = tGrid.rows[i].getElementsByTagName("input");
for (var j = 0; j < inputs.length; ++j) {
if (inputs[j].type == "hidden") {
var k = inputs[j].value * 1;
if (k % 2 == 0) {
tGrid.rows[i].style.visibility = "collapse";
}
}
}
}
}
</script>
Related
Right now I'm trying to use JQuery to set text at the end of a products name for a website. But the issue is right now it's set up to run when the document is ready.
So for some reason when switching pages it's not refreshing the page just adding to the url and changing products which is fine, but my code doesn't work for the other pages.
Example:
https://www.example.com/category
to
https://www.example.com/category/?sort=featured&page=2
I know that my code isn't as efficient as it could be, and there's reused code. But right now I'm just trying to get it to work before cleaning it up further. I couldn't really find anything online that really worked other than doing a location.reload() when the page nav was pressed. Unfortunately that ended up creating an infinite loop on the page.
I'm not sure if I'm just not thinking of the correct way to go about this or if my code isn't working as intended. I don't get any errors in the console either.
What I've tried:
Creating a selector for the page navigation so when clicked it will run the same code again.
Tried using a listener to listen for the clicks.
Tried checking if the url has changed.
Tried to refresh the page after clicking on page navigation along with using a timeout to wait for the page to change then refresh.
Code:
script1 - Handles adding text to product titles
$(document).ready(function() {
var multiTitle = $(".card-title");
var prodTitle = $(".productView-title");
var array = [list of titles];
if (multiTitle.length > 0) {
for (var i = 0; i < multiTitle.length; i++) {
for (var j = 0; j < array.length; j++) {
if (multiTitle[i].innerText == array[j]) {
var text = document.createElement('span');
text.innerHTML = "<span>text</span></br>";
multiTitle[i].prepend(text);
}
}
}
}
if (prodTitle.length > 0) {
for (var j = 0; j < array.length; j++) {
if (prodTitle[0].innerText == array[j]) {
var text = document.createElement('span');
text.innerHTML = "<span>text</span></br>";
prodTitle[0].append(text);
}
}
}
});
script2 - should re-add text after titles when pages change
$(".pagination-list").click(function() {
$(window).bind('hashchange', function() {
var multiTitle = $(".card-title");\
var prodTitle = $(".productView-title");
var array = [list of titles];
if (multiTitle.length > 0) {
for (var i = 0; i < multiTitle.length; i++) {
for (var j = 0; j < array.length; j++) {
if (multiTitle[i].innerText == array[j]) {
var text = document.createElement('span');
text.innerHTML = "<span>text</span></br>";
multiTitle[i].prepend(text);
}
}
}
}
if (prodTitle.length > 0) {
for (var j = 0; j < array.length; j++) {
if (prodTitle[0].innerText == array[j]) {
var text = document.createElement('span');
text.innerHTML = "<span>text</span></br>";
prodTitle[0].append(text);
}
}
}
});
});
So I'm trying to parse a large amount of data from another website trough JavaScript and jQuery and (I'm new to both) so the problem here is the function inside the 2nd jQuery load() is not working.
function load() {
var r = 0;
var cols = [4,5,8,9,10];
$('#Parser').load('url #tableID', function () {
var r = $('#Parser').find('label').length;
for (var i = 0; i < r; i++) {
$('#table').append('<tr id="'+i+'"></tr>')
for (var j = 0; j < cols.length; j++) {
$('#'+i).append('<td id="c'+i+j+'"></td>')
$('#c'+i+j).load('url #tableId\\:Row'+i+'\\:Col'+cols[j], function() {
$('#c'+i+j).html($('#c'+i+j).children().text());
});
}
}
$('#Parser').html('');
});
}
So if tested this on its own with static id's and it works
$('#test').load('url #tableId\\:Row1\\:Col1', function() {
$('#test').html($('#test').children().text());
});
I need to parse the code by column and row like this because the webpage where I'm getting the data from has the data I want scattered over the columns on the cols variable and I find how many rows the table has on the r variable
I don't know if it's a logic problem or just a misuse of the functions but I have been struggling the whole day and I needed help.
The main load() function is called when the page starts, and this outputs the whole element instead of only the text
var time =new Date().getTime();
var rc = 0;
load();
refresh();
function load() {
var r = 0;
var cols = [4,5,8,9,10];
$('#Parser').load('url #tableID', function () {
var r = $('#Parser').find('label').length;
if (r != 0) {
//Simulating going back to this page
$('body').css({'background-color':'red','color':'white'});
for (var i = 0; i < r; i++) {
if (rc < r) {
$('#table').append('<tr id="'+i+'"></tr>')
}
for (var j = 0; j < cols.length; j++) {
if (rc < r) {
$('#'+i).append('<td id="c'+i+j+'"></td>')
}
col = $('#c'+i+j).load('url #tableId\\:Row'+i+'\\:Col'+cols[j],function() {
if ($('#c'+i+j).html != col){
$('#c'+i+j).html('');
}
});
}
}
}else {
if (rc != 0 ) {
for (var i = 0; i < rc; i++) {
for (var j = 0; j < cols.length ; j++) {
$('#c'+i+j).html('');
}
}
}
if ($('body').css('background-color') != 'white') {
//Simulating another page
$('body').css({'background-color':'white','color':'black'});
}
}
$('#Parser').html('');
if (rc < r) {
rc = r ;
}
});
}
function refresh() {
if(new Date().getTime() - time >= 10000){
load();
setTimeout(refresh, 10000);
}else{
setTimeout(refresh, 10000);
}
}
This is my full javascript on the page
the previous code is my atempt on processing it to text on a simpler way
Try this:
function load()
{
...your code...
}
$(document).ready(load);
Maybe the function is not being called on time, make sure you call it AFTER the DOM has been rendered.
Okay so it was a pretty easy fix, inside the second load function I have replaced
the
$('#c'+i+j).html($('#c'+i+j).children().text());
to
$(this).html($(this).text());
And it works fine now.
Using the following,
var cells = document.getElementById("test").getElementsByTagName("td");
for (var i = 0; i < cells.length; i++) {
if (cells[i].innerHTML == "one") {
cells[i].style.backgroundColor = "red";
}
}
http://jsfiddle.net/jfriend00/Uubqg/
does anyone know how I can locate any word in a row and have it highlight a specific cell in the same row
take for instance if the word one is found anywhere, it highlights the first cell in that row?
To highlight the first cell, just go back to the parent rows and get the cells:
var cells = document.getElementById("test").getElementsByTagName("td");
for (var i = 0; i < cells.length; i++) {
if (cells[i].innerHTML == "one") {
var row = cells[i].parentNode;
row.getElementsByTagName("td")[0].style.backgroundColor = "red";
}
}
sure, just look at the cell's parentNode, and then children[0] like this:
var cells = document.getElementById("test").getElementsByTagName("td");
for (var i = 0; i < cells.length; i++) {
if (cells[i].innerHTML == "one") {
cells[i].parentNode.firstChild.children[0].style.backgroundColor = "red";
}
}
working fiddle:
http://jsfiddle.net/Uubqg/47/
var _target=document.querySelectorAll('.post .content');
var isYT = /youtube|youtu.be/gi;
for (i = 0; i < _target.length; i++) {
var _tar = _target[i].children;
for (var j = 0; j < _tar.length; j++) {
var vidID;
if (_tar[j].tagName == "A") {
if (isYt.test(_tar[j].href) == true) {
_eles.push(_tar[j]);
}
}
if (_tar[j].tagName == "EMBED") {
if (isYt.test(_tar[j].src) == true) {
_eles.push(_tar[j]);
}
}
} //end for loop j
} //end for loop i
console.log(_eles);
The HTML looks sort of like this:
<div>
Video 1
Video 2
<embed src="www.youtube.com/v/239324"></embed>
</div>
<div>
Video 1
Video 2
<embed src="www.youtube.com/v/239324"></embed>
</div>
Though the returning array Object with my console logging is only showing one a element and one embed element. I have to continuously invoke this myself to get all the links and embeds to be placed into the array Object. Any one see any errors I've written, just been working on this issue for about 3 hours now and it is tiring me. Any help is greatly appreciated.
thank you
I have changed your code this way:
var _target = document.querySelectorAll("div");
var _eles = [];
var isYt=new RegExp("\youtube.com");
for (var i = 0; i < _target.length; i++) {
var _tar = _target[i].childNodes;
for (var j = 0; j < _tar.length; j++) {
var vidID;
if(_tar[j].nodeType != 1) continue;
if (_tar[j].tagName.toLowerCase() == "a") {
if (isYt.test(_tar[j].href)) {
_eles.push(_tar[j]);
}
}
if (_tar[j].tagName.toLowerCase() == "embed") {
if (isYt.test(_tar[j].src)) {
_eles.push(_tar[j]);
}
}
} //end for loop j
} //end for loop i
console.log(_eles);
and it works, check this DEMO
but my favorite way to do this is like this:
var _target = document.querySelectorAll("div>a, div>embed");
var _eles = [];
var isYt=new RegExp("\youtube.com");
for (var j = 0; j < _target.length; j++) {
var vidID;
if (_target[j].tagName.toLowerCase() == "a") {
if (isYt.test(_target[j].href)) {
_eles.push(_target[j]);
}
}
if (_target[j].tagName.toLowerCase() == "embed") {
if (isYt.test(_target[j].src)) {
_eles.push(_target[j]);
}
}
} //end for loop j
console.log(_eles);
for this check this one DEMO
and if your isYT regexp is just as simple as I have used in my answer instead of all these lines of code you can simply do:
var _eles = document.querySelectorAll("div>a[href*='youtube.com/'],"+
"div>embed[src*='youtube.com/']");
I asked this question in an interview. In asp.net how can we check the no. of checked boxes using javascript.
By using jquery you can get the number of checkboxes on a html page by this
alert($('input:checkbox').length);
Or by using the following jquery code to determine the complete picture
var totalNoOfChkBoxes = 0;
var NoOfCheckedchkBoxes = 0;
var NoOfUnCheckedChkBoxes = 0;
$('input:checkbox').each(function () {
if ($(this).is(':checkbox')) {
totalNoOfChkBoxes += 1;
if($(this).attr('value') == "on")
NoOfCheckedchkBoxes += 1;
else
NoOfUnCheckedChkBoxes += 1;
}
});
alert(totalNoOfChkBoxes);
alert(NoOfCheckedchkBoxes);
alert(NoOfUnCheckedChkBoxes);
alert($('input:checked[type=checkbox]').length);
This will display number of checked checkboxes in a page.
var inputs = document.getElementsByTagName("input");
var cbs = []; //will contain all checkboxes
var checked = []; //will contain all checked checkboxes
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].type == "checkbox") {
cbs.push(inputs[i]);
if (inputs[i].checked) {
checked.push(inputs[i]);
}
}
}
var nbCbs = cbs.length; //number of checkboxes
var nbChecked = checked.length; //number of checked checkboxes