Ensure that the width of the table rows (tr) matches the width of the table header

I'm currently working on implementing a sticky table header. The issue I'm facing is that the width of tableHeaderRow does not match the width of tableHeader.

Steps taken for creating sticky header:

  1. Make an Ajax call to populate the table with data
  2. Save the column widths
  3. Set tableHeader to position:absolute
  4. Attempt to set the column widths back into tableHeader (although it falls short by about 100 pixels)

Tried approaches:

  1. Setting tableHeaderRow to the expected width
  2. Setting tableHeaderRow to 100% width
  3. Removing padding and margin

HTML code snippet:

<table id="table" class="table  tablesorter table-responsive table-striped table-hover" style="overflow:auto;border-collapse:collapse;">
    <thead id='tableHeader' style="background-color:LightBlue;">
        <tr id='tableHeaderRow' >
            <th id="col1" class='header'>Column1</th>
            <th id="col2" class='header'>Column2</th>
            ...
        </tr>
    </thead>
    <tbody id='tableBody'></tbody>
</table>

Code to save column widths:

 col1Width = $('#col1').width(); 
     col2Width = $('#col2').width();
     ...

Scroll Event Listener for Sticky Header:

 The JavaScript code provided listens for scroll events to make the table headers stick correctly.

If you need any further clarification, feel free to ask. A bootply example has been created to demonstrate the issue, although it seems to work fine there. Any insights on potential CSS plugins causing conflicts will be appreciated. Stay tuned for updates on this matter. If you find my custom sticky table header code useful, please feel free to utilize it.

javascriptjqueryhtmlcsstwitter-bootstrap

Answer №1

Unfortunately, this response may not provide a complete solution to your query. However, if you are looking for a helpful tool, I highly recommend checking out this jQuery plugin which seems to be one of the best available:

In addition, a simple CSS approach can also be explored (although I cannot verify its effectiveness personally): http://jsfiddle.net/dPixie/byB9d/3/

I once created a script similar to what you're seeking. A more basic variation is demonstrated below: jsFiddle: http://jsfiddle.net/L0oy2L01/

HTML (apologies for inline CSS styling... feel free to customize with your own classes!)

<div>
    <table>
        <tr style="background-color: #ccc;">
            <td data-col="1" class="header">
                Column1
            </td>
            <td data-col="2" class="header">
                Column2
            </td>
            <td data-col="3" class="header">
                Column3
            </td>
        </tr>
    </table>
</div>
<div id="contentDiv" style="max-height: 50px; overflow-y: auto;">
    <table class="contentTable">
        <tr>
            <td data-col="1" class="content">
                My Content1
            </td>
            <td data-col="2" class="content">
                My Content2
            </td>
            <td data-col="3" class="content">
                My Content3
            </td>
        </tr>
        <tr>
            <td data-col="1" class="content">
                My Content4
            </td>
            <td data-col="2" class="content">
                My Content5
            </td>
            <td data-col="3" class="content">
                My Content6
            </td>
        </tr>
        <tr>
            <td data-col="1" class="content">
                My Content7
            </td>
            <td data-col="2" class="content">
                My Content8
            </td>
            <td data-col="3" class="content">
                My content9
            </td>
        </tr>
    </table>
</div>

jQuery

<script type="text/javascript">
$(document).ready(function(){

    var totalWidth = 0;
    $('.header').each(function(){
        var colwidth = $(this).outerWidth();
        var colnumber = $(this).data('col');

            $('.content[data-col="'+ colnumber +'"]').each(function(){
                if($(this).outerWidth() >= colwidth){
                    colwidth = $(this).outerWidth();
                    }
                });

            $('td[data-col="'+ colnumber +'"]').css('width',colwidth);
            totalWidth += colwidth;
        });

    //if table height is bigger than contentDiv height there will be a scroll.. therefore we adjust contentDiv to fit its content and enable scrolling
    if($('.contentTable').outerHeight() > 50){
        $('#contentDiv').outerWidth(totalWidth + 30);
        }
    });
</script>

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