Hello,

There is an issue with the logic in the DoWork event.  Not all of the rows are iterated and that is why the last row does not get navigated. The event handler could be changed this way:

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
    for (var i = _index; i < this.radGridView1.Rows.Count; i++)
    {
        _index = i; 
        Thread.Sleep(50);
        backgroundWorker1.ReportProgress(i);
    }
}

Regards,
Dimitar
Progress Telerik