dte = DateTime.Today;
string str = Convert.ToString(dte);
string [] sr = str.Split(' ' );
string fvalue = sr[0];
string[] splitdate = fvalue.Split ('/');
string mnt = splitdate[0];
string day = splitdate[1];
string year = splitdate[2];
comboBox1.Text = day;
comboBox2.Text = mnt;
comboBox3.Text = year;