Develop Reference

Hiding some columns if table is too big

I am a beginner in react and web apps in general let me know if anything is unclear.
I have the following table :
<div>
<table id="mytableid" className="some classes">
<thead>
<tr>
<th>Name</th>
<th>Address</th>
<th>Phone Number</th>
<th>Age</th>
<th>Sex</th>
<th>Blood Type</th>
</tr>
</thead>
<tbody>
<tr>
<td>John Doe</td>
<td>Some place somewhere</td>
<td>093-1252-4879</td>
<td>51</td>
<td>Male</td>
<td>AB</td>
</tr>
</tbody>
</table>
</div>
Let's say I want to hide Address and blood type if table is too big to fit in a div.
The way I am thinking of doing this is to check the size of the div and the table in componentDidMount
if the size of the table is bigger than the div then I will set the style of those two columns to display:none.
I did something similar for submenu transitions where I would change my component set on the componentDidMount to get the height then put the visibility to hidden by changing the state. I didn't notice any slowness neither can I see that the submenu was actually visible(on chrome)
I saw some people are doing things like for the nth column to not be displayed if the screen is too small using purely css which is nice. But in my case I am not sure if I could do something similar as I would like the user of my component to specify which columns to hide.
My question is if it is the usual way for webapp developers to display the component check the result on componentDidMount and then change how things look or is there a different pattern?

The one pattern I have seen is, removing items on demand in such cases, i.e. user has choice of which columns to see and which one to hide. Refer this dynamic-columns example from an open source.
http://uikernel.io/examples/dynamic-columns/

Dynamically break down table td into individual tr's

I have a table that I am trying to make mobile friendly see below:
<tbody>
<tr>
<td>one</td>
<td>one</td>
<td>one</td>
</tr>
<tr>
<td>two</td>
<td>two</td>
<td>two</td>
</tr>
</tbody>
I'm looking to create single columns of this table so it can be display better on mobile.
Conceptually I'm thinking to ad an /tr after each /td excluding /td:last of types
My tables are dynamically generated, so it needs to dynamic solution, anyone have anythoughts on how to approach this?
Below is what the resulting table would ideally look like.
<tbody>
<tr><td>one</td></tr>
<tr><td>one</td></tr>
<tr><td>one</td></tr>
</tbody>
<tbody>
<tr><td>two</td></tr>
<tr><td>two</td></tr>
<tr><td>two</td></tr>
</tbody>

You could achieve the same look with CSS and media queries:
#media (max-width: 400px) { /* or whatever you want your mobile breakpoint to be */
tr, td { float:left; width:100%; }
}
http://jsfiddle.net/nWPzp/

If you're not displaying tabular data I find my preference is to stay away from tables and use lists/divs instead. That being said here are some examples of "Responsive Tables" that do contain tabular data:
http://css-tricks.com/responsive-data-table-roundup/
As pointed out a lot of them are css tricks.

Try JS. Use getElementById. Write:
document.getElementById("dynamic").innerHTML="new code"

HTML / CSS: Same table-cell width across rows

I have this table that includes details about its items on the right and I need to have all the cells in a column of the exact same width as the longest one, just like in the screenshot below:
This works if I use a regular table, but now I need to add an accordion function on top of it, so when I click on a row, the row's associated content will slide down from under each one.
The only way to add those content divs between table rows is to wrap them in <tr> tags, which don't work with the slideDown() and slideUp() effects.
Now I recreated the table in a fiddle using <dl> tags, hoping to solve this using CSS somehow, but no such luck. Here's the link: http://jsfiddle.net/bbDYX/ - everything is working properly, except for the width issue.
The only solution I can think of now is going through each table-cell on each of the right hand columns with JavaScript and setting their width to the same value as the highest width cell. But I want to avoid that if I can.
Any ideas?

This is what you need: myjsfiddle
css:
.con1
{
width:100%;
height:50px;
background-color:#F3E2A9;
}
Html:
<table border='0' cellspacing='3' width='100%'>
<tr bgcolor='lightblue'>
<td><a href='#' class='open1' >Item</a></td>
<td>detail 1</td>
<td>detail 2</td>
<td>detail 3</td>
</tr>
<tr><td colspan='4'><div class='con1'>con1</div></td></tr>
<tr bgcolor='lightblue'>
<td><a href='#' class='open1' >Item</a></td>
<td>detail 1</td>
<td>detail 2</td>
<td>detail 3</td>
</tr>
<tr><td colspan='4'><div class='con1'>con1</div></td></tr>
<tr bgcolor='lightblue'>
<td><a href='#' class='open1' >Item</a></td>
<td>detail 1</td>
<td>detail 2</td>
<td>detail 3</td>
</tr>
<tr><td colspan='4'><div class='con1'>con1</div></td></tr>
</table>
Script:
$('.con1').hide();
$('.open1').click(function() {
$(this).parent().parent().next().find('.con1').slideToggle();
return false;
});
have fun styling it...
(tested)

You can't slide up the <tr> tag, but you can slide up the <td> tags. Not sure if this would work for you, but worth considering...
$("#somerow").find("td").slideToggle();

Ok, as I stated in a comment, I would keep the table and create a "custom widget" for the accordion-like effect.
The thing would be very simple, using jQuery UI animations etc.
For example, you can create a basic "description toggle" with just four lines of code:
$('.mytable .description').hide();
$('.mytable').on('click', '.title', function(){
$(this).next('.description').toggle();
});
(of course then you can customize the .toggle() by adding effect type, duration, ...)
Here it is a working example: http://jsfiddle.net/JAmFh/

How should I build a simple 4x4 table with fill-able blocks

Using Jquery, I want to build a table of size 4x4 with equal sized blocks, which I can "fill" with a color.
Visual example:
The circle does not have to be included for this question.
I'm looking for advice, links, or suggestions on how to build this. I'm not very familiar with Jquery's canvas/draw functionality but I think that may be a possible solution. The determinate for which boxes are filled will be set by how many levels of a job a player has finished. For example the first column shows that the player has completed all 4 levels.
However, I can worry about how to send in the information. What I'm unsure of is (again) the best way to make a simple table like this.

Here you go:
HTML:
<table>
<tr>
<td class="a"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td class="a"></td>
<td></td>
<td class="c"></td>
<td></td>
</tr>
<tr>
<td class="a"></td>
<td class="b"></td>
<td class="c"></td>
<td></td>
</tr>
<tr>
<td class="a"></td>
<td class="b"></td>
<td class="c"></td>
<td class="d"></td>
</tr>
</table>
CSS:
td { width:40px; height:40px; border:1px solid #333; }
td.a { background-color:red; }
td.b { background-color:blue; }
td.c { background-color:purple; }
td.d { background-color:green; }
Additionally, you may want to use a CSS Reset style sheet in order to make the table appear the same cross-browser.
Live demo: http://jsfiddle.net/simevidas/hdBZY/

Here's a working jsFiddle, it uses jQuery and Tables to do exactly as you asked. From an array of items, it will automagically build the graph, all you have to provide is the array and the css.
http://jsfiddle.net/Z7Ds6/3/

I agree with the comments you've gotten, I don't see anything wrong with using plain old html tables for this.
You could either create the table and css like Sime Vidas suggested and manipulate class names with jquery, or you could create the html elements via jquery with something like $('<table>') etc, and use the .append() method to create child elements and/or dump the code to the page somewhere.

Table - fixed header, scrollable body, most robust/simple solution? [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
HTML table with fixed headers?
Looking for a solution to create a table with a scrollable body, and a static/fixed header.
Searching around seems to produce MANY flaky pieces of code, either not working in IE, requiring a huge amount of Javascript and tweaking, or a silly amount of CSS hacks etc.
To be honest, if it's a case of CSS hacks or Javascript, I think I'd prefer to go the Javascript option.
The alternative I guess is to place it all in a div, and just scroll the entire table - but that's a bit naff :D

I've just put together a jQuery plugin that does exactly what you want. Its very small in size and really easy to implement.
All that is required is a table that has a thead and tbody.
You can wrap that table in a DIV with a classname and the table will always resize to fit in that div. so for example if your div scales with the browser window so will the table. The header will be fixed when scrolling. The footer will be fixed (if you enable a footer). You also have the option to clone the header in the footer and have it fixed. Also if you make your browser window too small and all columns can't fit...it will also scroll horizontally (header too).
This plugin allows the browser to size the columns so they aren't fixed width columns.
you just pass the DIV's classname to the plugin like so: $('.myDiv').fixedHeaderTable({footer: true, footerId: 'myFooterId'}); and the plugin will do the rest. FooterID is a element on the page that contains the mark-up for your footer. this is used if you want to have pagination as your footer.
If you have multiple tables on the page it will also work for each table you want to have a fixed header.
check it out here: http://fixedheadertable.mmalek.com/
Keep in mind its still 'beta' so I am adding new features and bug fixes daily.
Supported browsers: IE6, IE7, IE8, FireFox, Safari, and Chrome
Here is a link to my response to another person who had the same question: Frozen table header inside scrollable div

<table style="width: 300px" cellpadding="0" cellspacing="0">
<tr>
<td>Column 1</td>
<td>Column 2</td>
</tr>
</table>
<div style="overflow: auto;height: 100px; width: 320px;">
<table style="width: 300px;" cellpadding="0" cellspacing="0">
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
<tr>
<td>Value 1</td>
<td>Value 2</td>
</tr>
</table>
</div>
This creates a fixed column header with the scrollable table below it. The trick is to embed the table you want to scroll in a tag with the overflow attribute set to auto. This will force the browser to display a scrollbar when the contents of the inner table are larger than the height of the surrounding .
The width of the outer must be larger than the width if the inner table to accommodate for the scrollbar. This may be difficult to get exactly right, because some users may have set their scrollbars to be wider or smaller than the default. However, with a difference of around 20 to 30 pixels you'll usually be able to display the scrollbar just fine.
CSS-Tricks also talks about using JavaScript and CSS to help with this as well so you can use highlighting. Here is the link to that article.

If you can fix the column widths - it's a lot easier. If you want the browser to figure out the widths, it gets a lot harder. Basically, have the table in div that scrolls (height, overflow:auto) and have that div inside a position:relative div. In the outer div, have another div position:absolute, overflow:hidden, height: whatever the header height is, set this div's innerHTML to the innerHTML of the inner div; Here is a page that demonstrates. There are lots of gotchas, but it's doable...
<html>
<head></head>
<body onload="doit();">
<div id="outer" style="position:relative;">
<div id="inner" style="height:100px; overflow:auto;">
<script>
var html = '<table><tr><th>Heading 1</th><th>Heading 2</th></tr>';
var width = Math.floor(Math.random() * 100);
var d = '';
for(var i = 0; i < width; i++){d += 'a';}
for(var i = 0; i < 100; i++){
html += '<tr><td>' + d + '</td><td>some more data</td>';
}
html += '</table>';
document.write(html);
</script>
</div>
<div id="secondWrapper" style="position:absolute; background:#fff; left:0; top:0; height:25px; overflow:hidden;"></div>
</div>
<script>
function doit(){
var inner = document.getElementById('inner');
var secondWrapper = document.getElementById('secondWrapper');
secondWrapper.innerHTML = inner.innerHTML;
}
</script>
</body>
</html>
Note as you refresh and the data size changes, the header matches up perfectly. That's the real trick.

I believe that the solution is to set an explicit height for the tbody and set the overflow to auto or scroll. Unfortunately, as you've discovered, tables and CSS are a tricky combination, and IE likes to choke on it.

How about this:
<table style="width: 400px;">
<thead><tr> <th> head </th> </tr>
</thead>
<tbody style="height: 100px; overflow-y: auto; overflow-x: hidden;">
<tr> <th> .. </th> </tr>
</tbody>
</table>

There was also a quiz for just this sort of thing on Sitepoint, for those looking for a non-JS solution. However I found that the table footer was necessary for stopping the table headers from collapsing their widths IF the contents of the cells weren't wide enough. I ended up hiding the tfoot in the application I used this on.
It's pure HTML/CSS and works in IE6 plus modern browsers. There are some styling limitations for the header though.