I have a html table as below:
<table>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td>9</td>
<td>10</td>
</tr>
</table>
On click of a td I am changing the color of it's next 4 td's and for that I have done it in jquery as below:
$(this).nextAll("td").slice(0, 4).addClass("selected");
Above code is working if I click on 1st TD then it selects further 4 td's but if I click on 4th td then it selects only 5th td. I want it to select another 3 td's in next row as well.
Please tell me how can I fix this?
jQuery .index() method returns the index of passed element in the current set. By using returned index you can .slice() the collection, this is more efficient than querying the DOM on each click, especially when you have a big table:
var $tds = $('#table td').on('click', function() {
var i = $tds.index(this);
$tds.slice(++i, i+4).addClass("selected");
});
http://jsfiddle.net/MamYX/
You can simply add the td of the following row. :
$(this).nextAll("td").add($(this).closest('tr').nextAll().find('td'))
.slice(0, 4).addClass("selected");
Demonstration
var $tds = $('table td').click(function(){
var idx = $tds.index(this);
$tds.filter(':gt(' + idx + '):lt(4)').addClass('selected')
})
Demo: Fiddle
Related
I have a HTML-table with several tablerows. Each row contains 2 tabledata elements.
These td elements are filled with numbers.
I need code that helps me compare the numbers of each row and add CSS.
An example:
<tr>
<td>12</td>
<td>15</td>
</tr>
<tr>
<td>3</td>
<td>1</td>
</tr>
We are always going to use CSS on the second tabledata element. If the value of the second td is lesser than the value of the first td element, it has to appear in red color.
On the other hand, if the value of the second td element is greater than the value of the first td element it has to appear in green color.
This means that the tables contents should look something like this:
<tr>
<td>12</td>
<td style='color:green;'>15</td>
</tr>
<tr>
<td>3</td>
<td style='color:red;'>1</td>
</tr>
How can this be done?
You can use jQuery to get the inner values of each td element, compare the values and apply a style given the output. This assumes you always have two td elements. Any more and you would have to loop each td in the row and keep a running count.
$("table tr").each(function(){
var firstTd = $(this).children(":first");
var secondTd = $(this).children(":last");
if (secondTd.html() < firstTd.html()) {
secondTd.css("background-color", "red");
} else if (secondTd.html() > firstTd.html()) {
secondTd.css("background-color", "green");
}
});
JSFiddle
You can try with this function: link to fiddle
This solution is without using JQuery of course.
Just in case, I also post the code here:
<body onload="myFunction()">
<table>
<tr>
<td>12</td>
<td>15</td>
</tr>
<tr>
<td>3</td>
<td>1</td>
</tr>
</table>
</body>
<script>
function myFunction(){
var tds = document.getElementsByTagName("td");
for (var i=0; i<tds.length; i++){
if (i>=1 && i%2 != 0){
if (parseInt(tds[i].innerText) > parseInt(tds[i-1].innerText)) {
tds[i].style.color = "green";
} else {
tds[i].style.color = "red";
}
}
}
}
</script>
I have a table with several <tr>s and each one has several <td>s. The content of these columns can be another html element (for example a textbox) or just text.
My question: how I can get the rest of the siblings of one clicked element inside this column? I mean, how I can know to which <tr> this element belongs, to <tr> #3 or <tr> #5?I don't have a index per <tr> to control
Example:
If I click the textbox of column #1 in row #5, I want that the content of column #2 in row #5 change. I don't know how to do it because my <tr> doesn't have an index.
Using jQuery, add this to the event handler. This will provide you with a collection of table cells:
var columns = $(this).closest('tr').children();
// .eq() is 0-based, so this would retrieve the fourth column
columns.eq(3);
You can find the index of a row using the index() function.
$('input').click(function(){
var index = $(this).parents('tr').index();
alert('you click an input on row #' + index);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td><input type="text"></td>
<td></td>
</tr>
<tr>
<td><input type="text"></td>
<td></td>
</tr>
<tr>
<td><input type="text"></td>
<td></td>
</tr>
</table>
Use closest to get the parent TR element.
$('your_element').click(function(){
var tr = $(this).closest('tr');
var element1 = $(tr).find('element_to_find');
});
You can also use the :eq operator to find the td.
$('your_element').click(function() {
var tr = $(this).closest('tr');
var col3 = $("td:eq(2)", tr);
}
There are lots of answers about this but none of them includes any if statement. So, I need something like this:
if($(this) == "last <td> of the row")
How can I do that? Thanks
You can use :last-child selector to test if its the last child of its parents.
From jQuery API Doc:
:last-child
SelectorSelects all elements that are the last child of their parent.
While :last matches only a single element, :last-child can match more than one: one for each parent.
So if you use td:last, you'll only get true when click on 8 in the snippet(and if you don't use td:last but :last, no td will tested true as they're all not the last element in the DOM)
While click on 4 and 8 will both tested true if you use :last-child, as they both are the last td in tr.
$('td').click(function() {
console.log($(this).text());
if ($(this).is(':last-child')) {
console.log('last');
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
</tr>
</table>
Scenario:
I'm using datatable library to display alot of information. That table have the following rows:
Id Type Name Case
What I'm looking for is that when I click the second row Type, that value will be taking and pasted in a textbox
Example
Id Type Name Case
1 text Juan 20001
3 List Pedro 20005
If I click the row that has the id # 1, I need to take the Type innerHTML. Does not matter what apart of the row I click just take the second td's html.
I tried with this code:
$("tr td").click(function () {
alert($(this).html());
})
It worked great, But the problem is that the user have to click exactly the row Name, but would be better if user can click over any of the row and just take the second rows html.
Suggesstions?
myRow.getElementsByClassName('td')[1].innerHTML
should get you the innerHTML of the second table cell of myRow as long as the first table cell does not contain a nested table.
You might try adding the click handler to the rows instead of to the cells too.
Try using eq()
but would be better if user can click over any of the row and just
take the second rows html.
$("tr td").click(function () {
secondrow = $(this).closest('tr').siblings().eq(1);
});
If i click the row that has the id # 1, i need to take the Type
innerHTML. Does not matter what apart of the row i click just take the
second td's html.
$("tr td").click(function () {
secondTd = $(this).siblings().eq(1);
alert(secondTd.html());
});
Try this
$(function () {
$("#thetable tr").click(function () {
if ($(this).index() == 0) return;
$('#tbox').val($('td:nth-child(2)', $(this)).html())
})
});
HTML
<table border="1" cellpadding="4" id="thetable">
<tr>
<td>Id</td>
<td>Type</td>
<td>Three</td>
<td>Four</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
</tr>
</table><br />
<input type="text" name="tbox" id="tbox" />
It method takes into account the first row that contains only labels and doesn't set the textbox value to a label if top row is clicked.
I have table that is filled with dynamic content from a query from a database on the backend. I want to hide any tr that contains only zeros.
Here is what my table looks like:
<table id="table1" " cellspacing="0" style="width: 800px">
<thead id="tablehead">
</thead>
<tbody id="tabledata">
<tr class="odd">
<td>0</td>
<td>0</td>
<td>0</td>
<td>0.00%</td>
<td>0.00%</td>
<td>$0.00</td>
<td>$0.00</td>
<td>$0.00</td>
<td>$0.00</td>
<td>$0.00</td>
<td>$0.00</td>
</tr>
</tbody>
Now if the first three td's in tbody are == 0 then I would like to add a class to the tr that will effectively hide that row. How would I go about doing this using jQuery?
EDIT:
Sorry forgot to add what I have tried. The following is a test script I tried to see if I could collect all the td's
$(document).ready(function() {
$("#table1 td").filter(function() {
return $(this).text == 0;
}).css("text-color", "red");
});
You can do this :
$('tr').each(function(){
var tr = $(this);
if (tr.find('td:eq(0)').text()=="0"
&& tr.find('td:eq(1)').text()=="0"
&& tr.find('td:eq(2)').text()=="0"
) tr.addClass('hidden');
});
Demonstration (the hidden class changes the color to red, it's clearer...)
Depending on your need, you might have to trim the texts, or to parse them.
For more complex tests, you might find useful to work directly with an array of the cell contents. You can get it using
var celltexts = tr.find('td').map(function(){return $(this).text()}).toArray();