how to change text fore color in datagrid view

Question

public void view_load_tenthclass_marks()

{

//this code for auto resize of columns

dataGridView3.AutoResizeColumns();

dataGridView3.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;

ConnectionStringSettings consettings = ConfigurationManager.ConnectionStrings["smssms"];

string connectionString = consettings.ConnectionString;

SqlConnection cn = new SqlConnection(connectionString);

SqlCommand sqlcmd = new SqlCommand();

SqlDataAdapter sda = new SqlDataAdapter();

DataTable dt = new DataTable();

cn.Open();

//pass query

sqlcmd = new SqlCommand(@"select * from tenthclass_marks ", cn);

sda = new SqlDataAdapter(sqlcmd);

//Fill the data in the SQL Data Adapter

sda.Fill(dt);

//Bind it in the DataGrid View

dataGridView3.DataSource = dt;

cn.Close();

}

through this i can get marks of all students now  my requirement is if student get >35 then the text color of that student should change to another color.pls help me

 thank you