Databases
StackOverflow2013
Postsdbo
POHow can a html table highlight columns by changing the border on hover?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow can a html table highlight columns by changing the border on hover?
    primarykey
    data
    text
    <p>I'm exploring how to style a table in such a way that the border can be changed when the mouse hovers over a column.</p> <p><img src="https://i.stack.imgur.com/TCDXZ.png" alt="enter image description here"></p> <p>When the mouse is over a column, I want to highlight that column by changing the border color:</p> <p><img src="https://i.stack.imgur.com/EVBW9.png" alt="enter image description here"></p> <p>To highlight, I am using the following JavaScript code with the jQuery library:</p> <pre><code>$('td').hover(function() { var t = parseInt($(this).index()) + 1; $('td:nth-child(' + t + ')').addClass('highlighted'); }, function() { var t = parseInt($(this).index()) + 1; $('td:nth-child(' + t + ')').removeClass('highlighted'); }); </code></pre> <p>with the following CSS:</p> <pre><code>.highlighted { border-top: 2px solid black; border-right: 2px solid black; border-left: 2px solid black; } </code></pre> <p>You can view how this works in this JSFiddle: <a href="http://jsfiddle.net/sCFjj/1/" rel="nofollow noreferrer">http://jsfiddle.net/sCFjj/1/</a> This is only working when I hover on the left-most column. Otherwise it highlights the right-column (and top) but not the left vertical column. Is there a way of making the left-vertical column appear?</p> <p>Ideally, I would like the effect to ignore the lowest row, but I am not sure how to exclude a row from the jQuery selection.</p> <p>I've based my attempt closely on this previous <a href="https://stackoverflow.com/a/11828637/258755">question</a>.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USdjq
    plurals
    1. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow can a html table highlight columns by changing the border on hover?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POHow can a html table highlight columns by changing the border on hover?
      1. USJokester
      1. VTFavorite
    3. VO
      singulars
      1. POHow can a html table highlight columns by changing the border on hover?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COthat the left border disappears is because of the border-collapse property. it is by default set to collapse.
      singulars
      1. POHow can a html table highlight columns by changing the border on hover?
      1. USSven Bieder
    2. COadding `$('tr:last-child td').removeClass('highlighted');` after you add the .highlighted class will "ignore the lowest row"
      singulars
      1. POHow can a html table highlight columns by changing the border on hover?
      1. USAndy
    3. CO@Andy for some reason this only removes the style on the left hand side. Does `$('tr:last-child td')` reference the lowest cell in the selected column? I was experimenting setting it a different color and it did not behave as I thought it would.
      singulars
      1. POHow can a html table highlight columns by changing the border on hover?
      1. USdjq
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload