Cell validation
Constrain what a cell accepts, with your own check — synchronous or asynchronous — and say what happens when it fails.
3 stepsWatch it once, then it is yours: click into the grid at any point to take over.
Type a bad email, clear a name or set a salary to 0: the cell is flagged.
Make every data point count. Turn millions of them into actionable wisdom.
Let’s make it easier.
Smoother. Faster. All Handsontable.