Skip to main content
BuyLog In
XAF: Cross-Platform .NET App UI & Web API
Search in…
Docs > Concepts > Extra Modules > Reports V2 Module > Data Sources for Reports V2
A newer version of this page is available. .
All docs
V20.2
.NET Framework 4.5.2+
eXpressApp Framework
Fundamentals
.NET Core 3.0+ Support in XAF WinForms Applications
.NET Standard 2.0 Support for Platform-Agnostic Modules
ASP.NET Core Blazor UI - Official Release
Getting Started
Concepts
Application Solution Components
Business Model Design
Application Model
UI Construction
Controllers and Actions
Data Manipulation and Business Logic
Security System
Localization
System Module
Extra Modules
Audit Trail Module
Business Class Library Customization Module
Chart Module
Clone Object Module
Conditional Appearance Module
Dashboards Module
File Attachments Module
KPI Module
Notifications Module
Maps Module
Office Module
Pivot Chart Module
Pivot Grid Module
Reports V2 Module
Create Predefined Static Reports
Create and View Reports in a WinForms Application
Create and View Reports in an ASP.NET Application
Create and View Reports in a Blazor Application
Invoke the Report Preview from Code
Modify an Existing Report
Grid Based Reporting in WinForms Applications
Data Sources for Reports V2
Data Filtering in Reports V2
Data Sorting in Reports V2
In-Place Reports
Scheduler Module
Script Recorder Module
State Machine Module
TreeList Editors Module
Validation Module
View Variants Module
Workflow Module
Debugging, Testing and Error Handling
Filtering
Application Life Cycle
Design-Time Features
Deployment
Task-Based Help
Frequently Asked Questions (FAQ)
API Reference
Download CHM

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.20.2: XAF Data Sources for Reports (.NET Framework)/DX: Report Controls (.NET Core, .NET Standard) 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.