How to Implement a Fixed Header Table with Both Horizontal and Vertical Scrollbars?

Fixed Header Table with Horizontal Scrollbar and Vertical Scrollbar on

The issue you're facing arises when you add a vertical scrollbar to your fixed header table. The vertical scrollbar interferes with the positioning of the horizontal scrollbar, since both are conflicting for space within the outer container.

HTML and CSS Structure

Your provided HTML and CSS structure is a good starting point. The HTML consists of a nested structure of tables, with the header table set to fixed positioning and the body table set to overflow-y: scroll. The CSS defines styles for the table elements, including fixed heights and widths for the header cells and body cells.

Solution

To resolve the issue and have both horizontal and vertical scrollbars working correctly, we can employ a combination of CSS and JavaScript:

1. CSS:

   • Remove the overflow-x: scroll; property from the .inner-container.
   • Add a class to the .inner-container with a specific width, say "scroll-container".

2. JavaScript:

   • Use JavaScript to calculate the width of the .scroll-container and set the width of the .table-body to that width. This ensures that the body table has the correct width to align with the header table and prevent horizontal scrollbar issues.

Example Code

Here's an example of the updated code:

/* CSS */
.scroll-container {
  width: 100%;
}

/* JavaScript */
var scrollContainer = document.querySelector(".scroll-container");
var tableBody = document.querySelector(".table-body");
tableBody.style.width = scrollContainer.offsetWidth + "px";

Explanation

By removing the overflow-x property from the .inner-container and setting a specific width via JavaScript, we're ensuring that the .table-body has the correct width to accommodate both horizontal and vertical scrolling. This alignment prevents the vertical scrollbar from interfering with the horizontal scrollbar and allows both to function properly.

Alternative Solutions

Additionally, there are other solutions you could consider:

• Use CSS Grid or Flexbox for layout to achieve a more flexible and responsive design.
• Explore using a CSS library like Bootstrap or Materialize, which provide pre-built components and styles that may simplify the implementation of this functionality.

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