Wait one second in running program

Question

dataGridView1.Rows[x1].Cells[y1].Style.BackColor = System.Drawing.Color.Red;
System.Threading.Thread.Sleep(1000);

İ want to wait one second before

Answer 1

I feel like all that was wrong here was the order, Selçuklu wanted the app to wait for a second before filling in the grid, so the Sleep command should have come before the fill command.

    System.Threading.Thread.Sleep(1000);
    dataGridView1.Rows[x1].Cells[y1].Style.BackColor = System.Drawing.Color.Red;