I need your help.
How can I at the click of a button, move to the next row in my table. The concept is this, once a table row, in the table body is selected via a mouse click, the table row then changes background color and a row number is recorded. I'd like to use the given row number to move to the next table row and essentially "click it" as I would with a mouse, at the click of a button.
To keep things as simple as possible, i'd like to use jQuery.
Here is the HTML:
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<style type="text/css">
.highlight {
background-color: rgb(255,0,0);
}
</style>
<script type="text/javascript">
window.onload = function() {
var row
$("#data tbody tr").click(function() {
var selected = $(this).hasClass("highlight");
$("#data tr").removeClass("highlight");
if (!selected) { $(this).addClass("highlight"); }
row = $(this).closest("tr")[0].rowIndex
$("#rownum").val(row)
});
}
</script>
</head>
<body>
<table id="data" border="1" cellspacing="1" cellpadding="1">
<thead>
<tr>
<th>header1</th>
<th>header2</th>
<th>header3</th>
<th>header4</th>
<th>header5</th>
</tr>
</thead>
<tbody>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
</tbody>
</table>
Row Number:
<br>
<input type="text" id="rownum" readonly>
<input type="button" id="goto_next" value="next">
</body>
</html>
I would extract highlighting functionality into separate function and use it from both click handlers:
var $tbody = $("#data tbody").on('click', 'tr', function() {
highlight($(this));
});
$('#goto_next').click(function() {
var $next = $tbody.find('.highlight').next();
highlight($next);
});
function highlight($row) {
if ($row.length) {
$tbody.children().removeClass("highlight");
$row.addClass('highlight');
$("#rownum").val($row[0].rowIndex);
}
}
Demo: http://jsfiddle.net/wygRe/
http://jsfiddle.net/yktqf/
$("#goto_next").on("click", function(event) {
var $table = $("#data"),
$selectedRow = $("tbody tr.highlight", $table);
$selectedRow.insertAfter($selectedRow.next()).removeClass("highlight").click();
});
Another option, pull the TR click handler into a separate function, and add another function that gets attached to the click event on the goto_next button. From there pull the current selected row value from the text element, increment it and fire that into the select_row function.
function next_row() {
var elem = $('#data')[0].rows[parseInt($('#rownum')[0].value) + 1];
select_row(elem);
}
function select_row(elem) {
var selected = $(elem).hasClass("highlight");
$("#data tr").removeClass("highlight");
if (!selected) { $(elem).addClass("highlight"); }
row = $(elem).closest("tr")[0].rowIndex
$("#rownum").val(row)
}
window.onload = function() {
var row;
$("#data tbody tr").click(function(){ select_row(this) });
}
Related
I have a table who looks like following
<table>
<tbody>
<tbody class="green">
<tr>
<td>Data</td>
</tr>
</tbody>
<tbody class="blue">
<tr>
<td>Data</td>
</tr>
</tbody>
</tbody>
</table>
Is it possible, using jquery, to hide each tbody from the table if the number of the tr inside the tbody is lower than 2? I tiried this but it didin't worked. All the tr in the table got hidden.
$('.table tbody').each(function(){
if($(this).not("tr:hidden").length <2)
{
$(this).parent().find("tbody").hide();
}
});
You can use find() on this object to find the length of all tr
$(this).find("tr").length
Then you can use this to target the specific tbody element to hide.
Please Note: nested tbody (tbody inside tbody) is not valid.
Demo:
$('table tbody').each(function(){
if($(this).find("tr").length < 2){
$(this).hide();
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tbody class="green">
<tr>
<td>First tbody Data1</td>
</tr>
</tbody>
<tbody class="blue">
<tr>
<td>Second tbody Data1</td>
</tr>
<tr>
<td>Second tbody Data2</td>
</tr>
</tbody>
</table>
You can do this with vanilla JS quite easily, just grab all the tbodys and check their children's length for the amount you want and then set display to non if it doesn't meet that threshold.
https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll
https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style
const tbodys = document.querySelectorAll('tbody')
Array.from(tbodys).forEach(tbody => {
const { children } = tbody;
const threshold = children.length < 2;
tbody.style.display = threshold ? 'none' : '';
})
.blue {background-color: blue}
.green {background-color: green}
<table>
<tbody>
<tbody class="green">
<tr>
<td>Data</td>
</tr>
</tbody>
<tbody class="blue">
<tr>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
</tr>
</tbody>
</tbody>
</table>
But if you want to just Jquery
$('table tbody').each(function() {
if (this.children.length < 2) $(this).hide();
});
.blue {
background-color: blue
}
.green {
background-color: green
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tbody>
<tbody class="green">
<tr>
<td>Data</td>
</tr>
</tbody>
<tbody class="blue">
<tr>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
</tr>
</tbody>
</tbody>
</table>
I do have a table with horizontal and vertical scroll with a fixed header with elements taking as much as space it needs. I am working with React. It would be awesome if there is a react based solution too if CSS alone cannot solve it.
Note:
I did try other solutions here but it is not what I'm looking for
It would be better if td can have min-width set on them too
The header shows menu when it is clicked for sorting and filtering
There's a simple CSS solution to fix rows(headers) and columns in a table.
th {
position: sticky:
top: 0;
}
The above snippet will fix the header to the top. Then it's just a matter of adding a simple overflow to the parent container of the table. You can find a simple example below -
.table-container {
overflow: auto;
max-height: 160px;
border: 1px solid red;
}
th {
position: sticky;
top: 0;
background: white;
}
<div class="table-container">
<table>
<thead>
<tr>
<th>Head 1</th>
<th>Head 2</th>
<th>Head 3</th>
<th>Head 4</th>
</tr>
</thead>
<tbody>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<td>Data</td>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
</tbody>
</table>
</div>
I'm using slight modification from this answer to make header rows collapsible in an HTML table.
I want to modify the JS snippet so that rows are collapsed rather than expanded by default (on page load/document ready). How can I do this?
Basically what I'm trying to achieve is for:
$(this).find('span').text(function(_, value){return value=='-'?'+':'-'});
$(this).nextUntil('tr.header').slideToggle(100, function(){
to be run once at page load/refresh, in addition to when header rows are clicked and toggled.
I know that I'll need to change the two tags two <span>+</span> in HTML, but am stuck on how to trigger this behavior on page load.
Javascript:
$(document).ready(function(){
$('tr.header').click(function(){
$(this).find('span').text(function(_, value){return value=='-'?'+':'-'});
$(this).nextUntil('tr.header').slideToggle(100, function(){
});
});
});
HTML:
<table border="0">
<tr class="header">
<th colspan="2">Header <span>-</span></th>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr class="header">
<th colspan="2">Header <span>-</span></th>
</tr>
<tr>
<td>date</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
</table>
CSS:
table, tr, td, th
{
border: 1px solid black;
border-collapse:collapse;
}
tr.header
{
cursor:pointer;
}
JSFiddle: https://jsfiddle.net/mkb39x0u/
Seems like you'd just do this in document.ready:
$('tr:not(.header)').hide();
Demo
Also, I'd probably toggle visibility of your plus and minus characters with a class on the row and CSS rather than cluttering up your script with that.
I just update your code with few JS changes, I hope it'll help you out. Thanks
Add below JS code before your click method
$('tr.header').nextUntil('tr.header').slideToggle(100);
$(document).ready(function(){
$('tr.header').nextUntil('tr.header').slideToggle(100);
$('tr.header').click(function(){
$(this).find('span').text(function(_, value){return value=='-'?'+':'-'});
$(this).nextUntil('tr.header').slideToggle(100, function(){
});
});
});
table, tr, td, th {
border: 1px solid black;
border-collapse:collapse;
}
tr.header {
cursor:pointer;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table border="0">
<tr class="header">
<th colspan="2">Header <span>-</span></th>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr class="header">
<th colspan="2">Header <span>-</span></th>
</tr>
<tr>
<td>date</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
</table>
Another way you can achieve this functionality by using CSS
$(document).ready(function(){
$('tr.header').click(function(){
$(this).find('span').text(function(_, value){return value=='-'?'+':'-'});
$(this).nextUntil('tr.header').slideToggle(100, function(){
});
});
});
table {
border-collapse: collapse;
}
tr {
border: 1px solid #000;
display: none;
}
td + td {
border-left: 1px solid #000;
}
tr + tr {
border-top: 0;
}
tr.header {
cursor: pointer;
display: block;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table border="0">
<tr class="header">
<th colspan="2">Header <span>-</span></th>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr class="header">
<th colspan="2">Header <span>-</span></th>
</tr>
<tr>
<td>date</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
</tr>
</table>
I need your help.
I am attempting to selectively remove the table row at the click of button, but it does not seem that the code is working as it should, nothing is happening.
Perhaps a fresh set of eyes might be the cure for this one!
I am jQuery friendly!
The code in question:
$('#remove_row').click(function() {
var $row = $tbody.find('.highlight')
$("#data tr").eq($row).remove();
});
Here is the markup
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<style type="text/css">
.highlight {
background-color: rgb(255,0,0);
}
</style>
<script type="text/javascript">
window.onload = function() {
var rowCount = $('#data >tbody >tr').length;
$("#maxrows").val(rowCount);
var $tbody = $("#data tbody").on('click', 'tr', function() {
highlight($(this));
});
$('#goto_first').click(function() {
var $first = $tbody.find('tr').first();
highlight($first);
});
$('#goto_prev').click(function() {
var $prev = $tbody.find('.highlight').prev();
highlight($prev);
});
$('#goto_next').click(function() {
var $next = $tbody.find('.highlight').next();
highlight($next);
});
$('#goto_last').click(function() {
var $last = $tbody.find('tr').last();
highlight($last);
});
$('#goto_row').click(function() {
var $row = prompt("Enter row number")
highlight($("#data tr").eq($row));
});
$('#remove_row').click(function() {
var $row = $tbody.find('.highlight')
$("#data tr").eq($row).remove();
});
function highlight($row) {
if ($row.length) {
$tbody.children().removeClass("highlight");
$row.addClass('highlight');
$("#rownum").val($row[0].rowIndex);
}
}
}
</script>
</head>
<body>
<table id="data" border="1" cellspacing="1" cellpadding="1">
<thead>
<tr>
<th>#</th>
<th>header2</th>
<th>header3</th>
<th>header4</th>
<th>header5</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>2</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>3</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>4</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>5</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>6</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
</tbody>
</table>
Row Number:
<br>
<input type="text" id="rownum" readonly><br>
of
<br>
<input type="text" id="maxrows" readonly>
<br>
<input type="button" id="goto_first" value="first">
<input type="button" id="goto_prev" value="prev">
<input type="button" id="goto_next" value="next">
<input type="button" id="goto_last" value="last">
<input type="button" id="goto_row" value="goto row">
<input type="button" id="remove_row" value="remove row">
</body>
</html>
$row is already a reference to the row you want to remove. Change:
$("#data tr").eq($row).remove();
to:
$row.remove();
jsFiddle example
Change remove function to:
$('#remove_row').click(function() {
$tbody.find('.highlight').remove();
});
I need your help.
How can the existing jQuery code below be modified such that, at the click of a button, I would be able to move to the last row in the html table and select (highlight) it? My way of thought was that it would be possible to get the row count, then using the row count, move the selection to the last row. I guess I was wrong because its not working :(
Im jQuery friendly please.
Here is the markup:
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<style type="text/css">
.highlight {
background-color: rgb(255,0,0);
}
</style>
<script type="text/javascript">
window.onload = function() {
var rowCount = $('#data >tbody >tr').length;
var $tbody = $("#data tbody").on('click', 'tr', function() {
highlight($(this));
});
$('#goto_prev').click(function() {
var $prev = $tbody.find('.highlight').prev();
highlight($prev);
});
$('#goto_next').click(function() {
var $next = $tbody.find('.highlight').next();
highlight($next);
});
$('#goto_last').click(function() {
highlight(rowCount);
});
function highlight($row) {
if ($row.length) {
$tbody.children().removeClass("highlight");
$row.addClass('highlight');
$("#rownum").val($row[0].rowIndex);
}
}
}
</script>
</head>
<body>
<table id="data" border="1" cellspacing="1" cellpadding="1">
<thead>
<tr>
<th>header1</th>
<th>header2</th>
<th>header3</th>
<th>header4</th>
<th>header5</th>
</tr>
</thead>
<tbody>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
<tr>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
<td>data</td>
</tr>
</tbody>
</table>
Row Number:
<br>
<input type="text" id="rownum" readonly>
<input type="button" id="goto_prev" value="prev">
<input type="button" id="goto_next" value="next">
<input type="button" id="goto_last" value="last">
</body>
</html>
Your highlight function takes a Jquery object as parameter, it won't work by sending index of row. You can solve it using this:
$('#goto_last').click(function() {
highlight($("#data tr").eq(rowCount));
});