private DataGroupInfo?GetCurrentDataGroup(ReportDataContext dataContext, Band runningBand) { if (dataContext == null) { throw new ArgumentNullException(nameof(dataContext)); } if (runningBand == null) { throw new ArgumentNullException(nameof(runningBand)); } var closestMember = runningBand as XtraReportBase ?? runningBand.GetParentBoundReportBand(); var browser = (ListBrowser)dataContext.GetDataBrowser(closestMember.DataSource, closestMember.DataMember, true); if (browser == null) { return(null); } var groupBand = runningBand as GroupBand; if (groupBand != null) { var groupRowLevel = DataGroupingUtils.GetGroupRowLevel((SortedListController)browser.ListController, groupBand.Level); if (groupRowLevel != null) { return(new DataGroupInfo( closestMember.DataSource, closestMember.DataMember, browser, browser.List, DataGroupingUtils.GetGroupInfo(browser, groupRowLevel.Value, browser.Position))); } runningBand = closestMember; } var detailBand = runningBand as XtraReportBase; if (detailBand != null) { return(new DataGroupInfo(closestMember.DataSource, closestMember.DataMember, browser, browser.List, null)); } throw new InvalidOperationException($"Running band '{runningBand.Name}' cannot be used for immediate mode grouping. Calculated field {Name} must choose a {nameof(GroupBand)} or a {nameof(DetailReportBand)}."); }
private object GetImmediateModeSummary(XtraReport report) { report.AfterPrint -= report_AfterPrint; report.AfterPrint += report_AfterPrint; var dataContext = get_DataContext(report); if (expressionEvaluator == null) { isImmediateSummaryValid = false; expressionEvaluator = new ExpressionEvaluator(new CalculatedEvaluatorContextDescriptor(report.Parameters, this, dataContext), CriteriaOperator.Parse(Expression)); } var isOverridingFilter = !string.IsNullOrWhiteSpace(OverrideFilter); if (isOverridingFilter && overrideFilterEvaluator == null) { isImmediateSummaryValid = false; overrideFilterEvaluator = new ExpressionEvaluator(new CalculatedEvaluatorContextDescriptor(report.Parameters, this, dataContext), GetFilterCriteria(report, OverrideFilter)); } reset(summary); var dg = GetCurrentDataGroup(dataContext, Running ?? report); if (isImmediateSummaryValid && !dg.Equals(lastDataGroupInfo)) { isImmediateSummaryValid = false; } lastDataGroupInfo = dg; if (isImmediateSummaryValid) { return(immediateSummary); } if (dg != null) { if (dg.Value.DataSource != (DataSource ?? report.DataSource)) { throw new EndUserConfigurationException($"The running band on summary field {Name} does not have the same data source as the summary field. Otherwise, it is not able to be correlated with the summary field."); } if (!DataMemberUtils.AreEqual(DataMember, dg.Value.DataMember) && !DataMemberUtils.IsAncestor(dg.Value.DataMember, DataMember)) { throw new EndUserConfigurationException($"The running band on summary field {Name} must have the same data member or must be a parent data member. Otherwise, it is not able to be correlated with the summary field."); } var groupListBrowser = dg.Value.ListBrowser; var childBrowsers = DataMemberUtils.GetChildBrowsers(dataContext, dg.Value.DataSource, dg.Value.DataMember, DataMember); var groupStart = dg.Value.GroupRowInfo == null ? 0 : dg.Value.GroupRowInfo.ChildControllerRow; var groupRowCount = dg.Value.GroupRowInfo == null ? groupListBrowser.Count : dg.Value.GroupRowInfo.ChildControllerRowCount; if (isOverridingFilter) { var originalBrowser = childBrowsers.Length == 0 ? groupListBrowser : childBrowsers[childBrowsers.Length - 1]; var originalBrowserAsChild = originalBrowser as IRelatedDataBrowser; var newListController = new CustomSortedListController(); newListController.SetList(originalBrowser.List); var newBrowser = originalBrowserAsChild != null ? (ListBrowser) new CustomRelatedListBrowser(originalBrowser.Parent, originalBrowserAsChild.RelatedProperty, newListController, false) : new CustomListBrowser(originalBrowser.DataSource, newListController, false); ((IPropertiesContainer)newBrowser).SetCustomProperties(originalBrowser.GetItemProperties().OfType <CalculatedPropertyDescriptorBase>().Cast <PropertyDescriptor>().ToArray()); newListController.SetBrowser(newBrowser); // Filter outside the list controller so that we can ascertain grouping for rows the override filter excludes newListController.Initialize( ((SortedListController)originalBrowser.ListController).GetOriginalGroupFields(), ((SortedListController)originalBrowser.ListController).GetSortingSummary(), null); if (childBrowsers.Length == 0) { groupListBrowser = newBrowser; if (dg.Value.GroupRowInfo != null) { var currentListSourceIndex = ((SortedListController)originalBrowser.ListController).GetDataController().GetListSourceRowIndex(originalBrowser.Position); var currentPositionNewBrowser = newListController.GetDataController().GetControllerRow(currentListSourceIndex); var newGroupInfo = DataGroupingUtils.GetGroupInfo(newBrowser, dg.Value.GroupRowInfo.Level, currentPositionNewBrowser); groupStart = newGroupInfo.ChildControllerRow; groupRowCount = newGroupInfo.ChildControllerRowCount; } else { groupStart = 0; groupRowCount = newBrowser.Count; } } else { childBrowsers[childBrowsers.Length - 1] = (RelatedListBrowser)newBrowser; } } if (childBrowsers.Length == 0) { for (var i = 0; i < groupRowCount; i++) { var currentRow = groupListBrowser.GetRow(i + groupStart); if (!isOverridingFilter || ConvertOverrideFilterResult(overrideFilterEvaluator.Evaluate(currentRow))) { AddSummaryValue(expressionEvaluator.Evaluate(currentRow), i); } } } else { var state = dataContext.SaveState(); try { groupListBrowser.Position = groupStart; var sampleIndex = 0; foreach (var childBrowser in childBrowsers) { childBrowser.Position = 0; } while (true) { var currentIndex = childBrowsers.Length - 1; var currentBrowser = childBrowsers[currentIndex]; if (!isOverridingFilter || ConvertOverrideFilterResult(overrideFilterEvaluator.Evaluate(currentBrowser.Current))) { AddSummaryValue(expressionEvaluator.Evaluate(currentBrowser.Current), sampleIndex); } sampleIndex++; while (currentIndex > 0 && currentBrowser.Position >= currentBrowser.Count - 1) { currentBrowser.Position = 0; currentIndex--; currentBrowser = childBrowsers[currentIndex]; } if (currentBrowser.Position >= currentBrowser.Count - 1) { if (groupListBrowser.Position == groupStart + groupRowCount - 1) { break; } groupListBrowser.Position++; } else { currentBrowser.Position++; } } } finally { dataContext.LoadState(state); } } } immediateSummary = GetCurrentSummaryResult(); isImmediateSummaryValid = true; return(immediateSummary); }