Changing the row color as per column Values

//Changing the row color as per the Stream Value
private void dataGridView1_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
string strA= dataGridView1.CurrentRow.Cells["ColA"].Value.ToString();
strA= strA.Trim();
if (strA.Equals("India"))
{
dataGridView1.CurrentRow.DefaultCellStyle.BackColor = Color.LightSkyBlue;
}
else if (strA.Equals("PAK"))
{
dataGridView1.CurrentRow.DefaultCellStyle.BackColor = Color.GreenYellow;
}
else if (strA.Equals("USA"))
{
dataGridView1.CurrentRow.DefaultCellStyle.BackColor = Color.OrangeRed;
}
else if (stream.Equals(""))
{
dataGridView1.CurrentRow.DefaultCellStyle.BackColor = Color.White;
}
}