private void GetShiftHistory_Click(object sender, EventArgs e)
 {
     CRySTALTimeCard.TimeCardServiceClient tcc = new CRySTALClient.CRySTALTimeCard.TimeCardServiceClient();
     CRySTALTimeCard.ShiftData[] sd = tcc.GetLastWeeksShifts(this.sessionID);
     ShiftHistoryBox.Items.Clear();
     foreach (CRySTALTimeCard.ShiftData shift in sd)
     {
         ShiftHistoryBox.Items.Add(shift.StartTime.ToString() + " - " + shift.EndTime.ToString() + " as " + shift.Role + ". Hours Worked: " + shift.HoursWorked);
     }
     tcc.Close();
 }