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XAF: Cross-Platform .NET App UI & Web API
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Docs > Reporting (Shape, Export & Print Data) > Reports Module > Data Sources for Reports V2
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V24.2
.NET 8.0+
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Reports Module
Add Reports V2 Module to an Existing XAF Application
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Create and View Reports in an ASP.NET Web Forms Application
Create and View Reports in an ASP.NET Core Blazor Application
Invoke the Report Preview from Code
Modify an Existing Report
Grid Based Reporting in WinForms Applications
Data Sources for Reports V2
Data Sorting in Reports V2
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Data Sources for Reports V2

The Reports V2 module supports XtraReports that utilize CollectionDataSource and ViewDataSource data sources only. These two components are available in the DX.24.2: XAF Data Sources for Reports (.NET Framework)/DX: Report Controls (.NET) group in the Visual Studio Toolbox.

ReportsV2_DataSourcesToolbox

These data sources require IObjectSpace to dynamically bind data. If you want to print a report in code, you should use the ReportDataSourceHelper.SetupBeforePrint method to register a service that provides an Object Space and perform other necessary initializations.

Data Source Comparison

Data Source Type Data Access Method Usage Scenario
CollectionDataSource IObjectSpace.CreateCollection Use CollectionDataSource when you do not need to display a large amount of data, because this component loads objects in their entirety, including fields that are not displayed in the report.
ViewDataSource IObjectSpace.CreateDataView Use ViewDataSource instead of CollectionDataSource if you experience performance issues. The ViewDataSource data source loads only those fields that are listed in ViewDataSource.Properties. Field values can be obtained from specific business class properties directly, or be evaluated by the database server using complex expressions.