DataGridView validation errors lost on sort. No validation at all for datasource updates

I have a DataGridView which I bind to a DataTable, through a BindingSource. Simple example code.

DataTable records;
BindingSource bindRecords;

private void InitGrid() {
    records = new DataTable();
    records.Columns.Add(new DataColumn("text", typeof(string)));

    bindRecords = new BindingSource();
    bindRecords.DataSource = records;

    dgvRecords.DataSource = bindRecords;
}

Then I use the CellValidating event like this:

private void dgvRecords_CellValidating(object sender, DataGridViewCellValidatingEventArgs e) {
    if(e.ColumnIndex == dgvRecords.Columns["text"].Index) {
        if(e.FormattedValue.ToString() == "error") {
            dgvRecords[e.ColumnIndex, e.RowIndex].ErrorText = "Oops!";
        }
    }
}

Now when user inputs as text the literal "error", an error icon is shown in the cell. So far so good.

But if I sort the column the validation is lost. I understand that in order for the cell validating event to fire the cell must be entered and then leaved.

I also have the same problem when inserting data programmatically like this:

private void btnAddRecord_Click(object sender, EventArgs e) {
    records.Rows.Add(new object[] { "error" });
}

How would I force validation to occur? I don't want hacks like traversing the grid and setting the CurrentCell.