how to give fore color&backgroundcolorusing switchcase inDGV

public class Session
    {
      
        public DateTime DATE { get; set; }
        public int SESSION_ID { get; set; }
        public string CK { get; set; }
        public string MK { get; set; }
        public string RK { get; set; }
        public string VB { get; set; }
        public string GS { get; set; }
        public string CMK { get; set; }
        public string UNNI { get; set; }
        public string MS { get; set; }

        public Session(DateTime date, int sessionId, string ck, string mk, string rk,
            string vb, string gs, string cmk, string unni, string ms)
        {
           DATE = date;
           SESSION_ID = sessionId;
           CK = ck;
           MK = mk;
           RK = rk;
           VB = vb;
           GS = gs;
           CMK = cmk;
           UNNI = unni;
           MS = ms;
        }
    }

and you make a funtion that binds your data into a datagridview. Inside this method, you can set the forecolor and backcolor property while iterating the datagridview element.

private void button1_Click(object sender, EventArgs e)
        {
            List lstProduct = new List
            {
            new Session(DateTime.Now.AddDays(5), 1, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now.AddDays(2), 2, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now.AddDays(5), 3, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now.AddDays(5), 4, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now.AddDays(5), 5, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now, 6, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now.AddDays(3), 7, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now.AddDays(2), 8, "REO", "TAs", "PH2", "", "", "", "", ""),
            new Session(DateTime.Now, 9, "REO", "TAs", "PH2", "", "", "", "", "")

            };
           
            DateTime minDate = DateTime.Now.AddDays(2);
            DateTime maxDate = DateTime.Now.AddDays(5);

            dataGridView1.DataSource = lstProduct;

            foreach (DataGridViewRow dRow in dataGridView1.Rows)
            {
                if (minDate <= Convert.ToDateTime(dRow.Cells[0].Value) && Convert.ToDateTime(dRow.Cells[0].Value) < maxDate)
                {
                    dRow.DefaultCellStyle.ForeColor = Color.Red;
                    dRow.DefaultCellStyle.BackColor = Color.Yellow;
                }
            }
        }

It will work, let me know if you have any issue.

What have you tried so far?