/// <summary> /// Binds the grid. /// </summary> private void BindGrid() { var dateRange = SlidingDateRangePicker.CalculateDateRangeFromDelimitedValues(drpSlidingDateRange.DelimitedValues); string groupIds = GetSelectedGroupIds().AsDelimited(","); string campusIds = cpCampuses.SelectedCampusIds.AsDelimited(","); SortProperty sortProperty = gAttendance.SortProperty; var chartData = new AttendanceService(new RockContext()).GetChartData( hfGroupBy.Value.ConvertToEnumOrNull <AttendanceGroupBy>() ?? AttendanceGroupBy.Week, hfGraphBy.Value.ConvertToEnumOrNull <AttendanceGraphBy>() ?? AttendanceGraphBy.Total, dateRange.Start, dateRange.End, groupIds, campusIds); if (sortProperty != null) { gAttendance.DataSource = chartData.AsQueryable().Sort(sortProperty).ToList(); } else { gAttendance.DataSource = chartData.OrderBy(a => a.DateTimeStamp).ToList(); } gAttendance.DataBind(); }