Conceal HTML Table Rows

I have a HTML table that showcases items and their respective daily information - usage, incoming shipments, and inventory. The goal is to initially hide the first two columns and reveal them on mouseover using jQuery. I am planning to assign a class to each row, set the first two rows as hidden, and then remove the class on mouseover for all three rows to be visible. However, I am facing issues with using CSS display: none; on HTML table td elements. Are there any alternative CSS commands available or do I need to approach this differently?

Here's an example of the table structure:

<table>
  <tr>
    <th>Item #</th>
    <th colspan='3'>100017</th>
    <th colspan='3'>100018</th>
    <th colspan='3'>100019</th>
    <th colspan='3'>100020</th>
  </tr>
  <tr>
    <th>Component</th>
    <th colspan='3'><u>chips</u></th>
    <th colspan='3'><u>butterfingers</u></th>
    <th colspan='3'><u>Flat Pretzels</u></th>
    <th colspan='3'><u>Milk Chocolate</u></th>
  </tr>
  <tr>
    <th>Date</th>
    <td class='dailyusagetable'>0</td>
    <td class='incommingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incommingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incommingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incommingtable'>0</td>
    <td>0</td>
  </tr>
</table>
htmlcss

Answer №1

To hide children, you can use the following method. Assign an #ID to the main table. This code snippet will hide the first 2 children:

#tableID td:nth-child(-n+2) {
    display: none;
}

Here is an example for demonstration purposes. In this instance, the text color has been modified. For your scenario, it is recommended to use visibility: hidden instead of display:none, as it preserves cell spacing.

The necessary changes have been commented in the code below.

 $("td:nth-child(4)").hover(function() {
   $(this).siblings("td:nth-child(-n+3)").addClass("fook");
 }, function() {
   $(this).siblings("td:nth-child(-n+3)").removeClass("fook");
 });
 
  $("td:nth-child(7)").hover(function() {
   $(this).siblings("td:nth-child(5n),td:nth-child(7n-1)").addClass("fook");
 }, function() {
   $(this).siblings("td:nth-child(5n),td:nth-child(7n-1)").removeClass("fook");
 });
 
   $("td:nth-child(10)").hover(function() {
   $(this).siblings("td:nth-child(8n),td:nth-child(10n-1)").addClass("fook");
 }, function() {
   $(this).siblings("td:nth-child(8n),td:nth-child(10n-1)").removeClass("fook");
 });
 
  $("td:nth-child(13)").hover(function() {
   $(this).siblings("td:nth-last-child(-n+3)").addClass("fook");
 }, function() {
   $(this).siblings("td:nth-last-child(-n+3)").removeClass("fook");
 });
* {
  text-align: center
}
td:nth-child(3n+0),td:nth-child(3n-1){
  background: pink;
  color: pink;
  /* visibility: hidden; */
}
td:nth-child(3n+1){
  background: white;
  cursor: pointer;
  color: black !important;
}
.fook {
  color: yellow !important;
  /* visibility: visible !important; */
}
#mytable {
  width: 100%
}
#mytable th:nth-child(-n+1) {
  background: lightgray;
}
#mytable th:nth-child(+1n+2) {
  background: lightcoral;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="mytable">
  <tr>
    <th>Item #</th>
    <th colspan='3'>100017</th>
    <th colspan='3'>100018</th>
    <th colspan='3'>100019</th>
    <th colspan='3'>100020</th>
  </tr>
  <tr>
    <th>Component</th>
    <th colspan='3'><u>chips</u></th>
    <th colspan='3'><u>butterfingers</u></th>
    <th colspan='3'><u>Flat Pretzels</u></th>
    <th colspan='3'><u>Milk Chocolate</u></th>
  </tr>
  <tr class="first">
    <th>2016-01-03</th>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
  </tr>
  <tr class="second">
    <th>2016-01-04</th>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
  </tr>
  <tr class="first">
    <th>2016-01-05</th>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
  </tr>
  <tr class="fourth">
    <th>2016-01-06</th>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
  </tr>
  <tr class="fifth">
    <th>2016-01-07</th>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
    <td class='dailyusagetable'>0</td>
    <td class='incomingtable'>0</td>
    <td>0</td>
  </tr>
</table>

Answer №2

In this example, the td class is hidden

<html>
    <head>

        <style>
            .dailyusagetable, .incomingtable {
                display:none;
            }
        </style>
    </head>
    <body>

        <table>
            <tr>
                <th>Item #</th>
                <th colspan='3'>100017</th>
                <th colspan='3'>100018</th>
                <th colspan='3'>100019</th>
                <th colspan='3'>100020</th>
            </tr>
            <tr>
                <th>Component</th>
                    <th colspan='3'><u>chips</u></th>
                <th colspan='3'><u>butterfingers</u></th>
                <th colspan='3'><u>Flat Pretzels</u></th>
                <th colspan='3'><u>Milk Chocolate</u></th>
            </tr>
            <tr>
                <th>2016-01-03</th>
                <td class='dailyusagetable'>0</td>
                <td class='incomingtable'>0</td>
                <td>0</td>
            ...
            
        </table>  

    </body>


</html>

Please check your code for any errors.

Answer №3

To conceal your table while preserving the original spacing, apply:

visibility: hidden;

If hiding the table completely is your goal, then opt for:

display:none;

This method will make the table invisible altogether.

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