XPO - Updated .NET Core Examples, Performance Benchmarks for EF Core 5.0 and More (v20.1)

Performance Benchmarks

The release of XPO v20.1 gave us an opportunity to update our benchmarks for XPO and Entity Framework Core: https://github.com/DevExpress/XPO/tree/master/Benchmarks. We were primarily interested in EF Core 3.1.3 vs EF Core 5.0, but we did not notice much difference in our tests (PDF). As for XPO vs EF Core 3.1.3, results are very similar to v19.2.

As always, we welcome your feedback. If you had the opportunity to execute our benchmark tests, please share your thoughts below. We’d love to know whether our findings are in-line with yours.

Updated .NET Core Examples

We identified 30 of our most popular XPO examples and added .NET Core 3.1 projects to them. I hope you find this update useful as .NET Core gains in popularity. To learn XPO faster, feel free to explore the following technical resources:

• CRUD tutorials for various .NET UI platforms
• Examples and concepts in the documentation
• KB articles in the support center.

We have also updated XPO and EF Core examples with XAF's user authentication and group authorization API to v20.1.4 (GitHub). Hopefully, you will find these access control/security functions of value for your enterprise. To quickly familiarize yourself with XAF's security system, please review these Frequently Asked Questions.

Noteworthy Support Center Tickets

• Changes in Visual Studio 2019 v16.6.0 caused the standard Class.cs item template (with an empty class) to disappear in the Add | New Item dialog. As a fix, you can update to the latest version or disable the XPO extension (T892485).
• We softened default parameter validation with regard to SELECT, UPDATE, and INSERT statements in XPO v20.1.4 (T890958).
• We demonstrated how to unit test custom logic in XAF/XPO business classes with InMemoryDataStore (T884471).
• Check how to use XPO Dependency Injection extensions to setup multiple data layers for ASP.NET Core Web API services (T864202).
• Learn how to troubleshoot the "Reentrancy or cross thread operation detected" errors (T419520).
• We implemented a console version of XPO Profiler to detect performance bottlenecks and code issues (T882761).
• FileNotFoundException and TypeLoadException related to Microsoft.Data.SqlClient may occur in debug mode (T885153).

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