private void Timer1_Tick(object sender, EventArgs e)
{
RandomCell(out int col, out int row);
Column tmp = tTeeGrid1.Columns[col];
int oldValue = int.Parse(Data.AsString(tmp, row));
Data.SetValue(tmp, row, (oldValue + rnd.Next(100) - 50).ToString());
Ticker.ChangeTicker(col, row, oldValue);
}