The synchronization between the First Column Scroll and Table Filter Function is out of alignment

I haven't coded for a while and my knowledge of JavaScript is still in its early stages, so please excuse me if this question seems a bit naive.

Essentially, I've created code that filters an HTML table based on the items in the first column. The code also enables both the first column and the header to stay fixed when scrolling horizontally after the table overflows.

The issue I'm encountering is that when I search for an item and it appears, if I then scroll horizontally, the first column reverts to displaying the very first item instead of the searched item. For instance, if the first column contains A, B, C, and D in descending order, and I search for D, but upon scrolling horizontally, A is shown in the first column.

I'm a bit stuck on how to resolve this and any assistance you can provide would be highly appreciated. Thank you!

Below is the code I've written:

$(function() {
  // Your JavaScript code here
});

// Function for searching and filtering the table
function myFunction() {
  // Your filtering function here
}
  // Your CSS code here
  // Your HTML code here
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Answer №1

Implementing this straightforward line of code at the end of your search function will resolve the issue:

$("table.sticky-col * th.headcol").html(filter);

The problem stemmed from the fact that the sticky plugin, or similar component, duplicates your original table and generates its own version when scrolling:

<table class="sticky-col" style="opacity: 1; left: 623px;">...

As observed in the developer tools, this new table is displayed when scrolling. By targeting this new table and assigning your filter value from the search input to the first th.headcol, the desired functionality can be achieved.

UPDATE:

While the initial solution appeared to work in displaying the correct letter, a problem arose when the search bar was cleared and all rows were displayed again upon scrolling. To address this, we need to revert back to the following:

        if (filter !== "") {
    $("table.sticky-col * th.headcol").each(function() {
    $(this).parent("tr").css("display", "");
      if ($(this).html() !== filter) {
        $(this).parent("tr").css("display", "none");
      }
    });
  } else {
    $("table.sticky-col * th.headcol").each(function() {
      $(this).parent("tr").css("display", "");
    });
  }

Furthermore, the provided script demonstrates the implementation of a sticky header and column functionality, along with a search feature for filtering table rows based on user input.

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