Issue in handsontable. If i begin correcting my error cells or update a new cell, cell highlights disappear

Question

If i begin correcting my error cells or update a new cell, cell highlights disappear.The issue exists even if I scroll vertically.Attached screenshot

Answer 1

You need to apply to each cell you want to validate this validator :

requiredFieldValidator = function (value, callback) {
    if (!value) {
        //addErrorDiv(myMessageDiv, myErrorMessages.required_field); 
        callback(false);
    } else {
        callback(true);
    }
};

Like this :

columns: [
    {data: 'firstName', validator: 'requiredFieldValidator'},
    {data: 'lastName', validator: 'requiredFieldValidator'},
]

Example : JSFiddle