private DataSet GetData()
        {
            Facade.IOrganisation    facOrganisation = new Facade.Organisation();
            Func <DateTime, string> dateFormatter;
            DataSet dataSet;

            int clientId = (string.IsNullOrEmpty(cboClient.SelectedValue)) ? -1 : int.Parse(cboClient.SelectedValue);

            switch (DateRange)
            {
            case ClientRevenueDateRange.Year:
                dateFormatter = (dateTime) => string.Format("{0} {1}", dateTime.ToString("MMM"), dateTime.Year);
                dataSet       = facOrganisation.GetClientWorkPerMonthReport(this.StartDate, this.EndDate, true, true, dateFormatter, clientId);
                break;

            case ClientRevenueDateRange.Month:
                dateFormatter = (dateTime) => dateTime.ToString("M");
                dataSet       = facOrganisation.GetClientWorkPerDayReport(this.StartDate, this.EndDate, true, true, dateFormatter, clientId);
                break;

            case ClientRevenueDateRange.Week:
                dateFormatter = (dateTime) => dateTime.DayOfWeek.ToString();
                dataSet       = facOrganisation.GetClientWorkPerDayReport(this.StartDate, this.EndDate, true, true, dateFormatter, clientId);
                break;

            case ClientRevenueDateRange.Day:
                dateFormatter = (dateTime) => "Yesterday";
                dataSet       = facOrganisation.GetClientWorkPerDayReport(this.StartDate, this.EndDate, true, true, dateFormatter, clientId);
                var columnToRemove = dataSet.Tables[0].Columns.Cast <DataColumn>().Single(c => c.ColumnName == "Yesterday");
                dataSet.Tables[0].Columns.Remove(columnToRemove);
                break;

            default:
                dateFormatter = (dateTime) => string.Format("{0} {1}", dateTime.ToString("MMM"), dateTime.Year);
                dataSet       = facOrganisation.GetClientWorkPerMonthReport(this.StartDate, this.EndDate, true, true, dateFormatter, clientId);
                break;
            }


            return(dataSet);
        }