The HTML aria-rowcount attribute
The aria-rowcount attribute states the total number of rows in a table, grid or treegrid when the DOM contains only some of them. Value: an integer, or -1 if unknown. Pair it with aria-rowindex.
Overview
The aria-rowcount attribute defines the total number of rows in a table, grid or treegrid.
It exposes table or grid structure to assistive technology. You generally only need it when you build a custom grid (role="grid") or when a native <table> cannot express the structure — for example a grid whose rows are virtualized and not all present in the DOM. A real <table> with <th> headers conveys most of this automatically.
Like all ARIA, aria-rowcount changes only the accessibility tree — what assistive technology perceives — never the element's behavior or appearance. The first rule of ARIA applies: if a native HTML element or attribute conveys this, use that instead, and only reach for ARIA when nothing native fits.
Syntax
<table role="grid" aria-rowcount="1000"> … </table>Values
| Value |
|---|
| An integer (use -1 if the total is unknown). |
Example
<table role="grid" aria-rowcount="1000"> … </table>Best practices
- Follow the first rule of ARIA — use a native HTML element or attribute that conveys this where one exists, rather than adding ARIA.
- Use a native <table> with <th> headers where possible — it conveys most structure for free.
- Reach for these attributes on a custom grid, or when rows and columns are not all in the DOM.
- Keep the index and count values accurate as the grid changes.