Timer Control In Windows Application C#

private void BtnSubmit_Click(object sender, EventArgs e)
       {
           label1.Visible = false;

           CommonClass.tagid = TxtTagid.Text.Trim();
           string sql_select = string.Format("SELECT EmployeeMaster.* FROM EmployeeMaster where TagId='{0}'", TxtTagid.Text.Trim());
           DataTable dt = new DataTable();
           dt = obj.NonTransaction(sql_select);
           string name = dt.Rows[0]["EmployeeName"].ToString();
           lblMsg.Visible = true;
           lblMsg.Text = "Thanks For Your Authentication" + " " + name;
           //MessageBox.Show("Thanks For Your Authentication" + " " + " "+ name);
           timer1.Enabled = true;

       }

private void timer1_Tick(object sender, EventArgs e)
        {
            count++;
            if (count == 5)
            {
                Login frm = new Login();
                frm.Close();
                EmployeeDetails emp = new EmployeeDetails();
                emp.Show();
            }
           
        }