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);
}
