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V25.1
    • .NET 8.0+
    XAF: Cross-Platform .NET App UI & Web API
    .NET Support and Migration
    Getting Started
    Installation, Upgrade, Version History
    Backend Web API Service
    UI Shell and Base Infrastructure
    Storage, ORM, and Business Model Design
    Why We Recommend EF Core over XPO for New Development
    Business Model Design with Entity Framework Core
    Auto-Generate EF Core Business Classes from Existing Tables (Database First)
    Connect to a Different Database Provider
    Use the Entity Framework Core Data Model
    Relationships Between Entities in Code and UI
    Update Database Schema and Migrations
    Optimistic Locking
    How to: Supply Initial Data for the Entity Framework Core Data Model
    How to: Initialize Business Objects with Default Property Values in Entity Framework Core
    Calculate a Property Value Based on Values from a Detail Collection in EF Core
    How to: Use the Entity Framework Core Data Model Located in an External Assembly
    How to: Use Multiple Data Models Connected to Different Databases in Entity Framework Core
    The Importance of Multiple Active Result Sets in Entity Framework Core Data Models
    Soft Deletion
    Performance
    Business Model Design with XPO
    Non-Persistent Objects
    The Importance of Property Change Notifications
    Built-in Business Classes & Interfaces
    Ways to Add a Business Class
    Data Types of Business Class Properties and Built-in Property Editors
    Mapping Complex Types to the Database
    Types Info Subsystem
    Connect an XAF Application to a Database Provider
    Data Annotation Attributes
    Create and Update the Application's Database
    How to: Specify a Display Member for a Lookup Editor, Detail Form Caption, and more
    Data Manipulation and Business Logic
    User Interface and Behavior Customization
    Data Filtering
    Application Security and Data Safety
    Multi-Tenancy (Data per Tenant)
    Validation (Prevent Data Errors)
    Conditional Appearance (Manage State of UI Elements)
    Reporting (Shape, Export & Print Data)
    Analytics (Extract Data Insights)
    Document Management
    Business Process Management
    Event Planning
    Localization
    Accessibility Support
    Debugging, Testing and Error Handling
    Deployment
    Support, QA & Troubleshooting
    API Reference
    Download CHM

    DevExpress v25.1 Update — Your Feedback Matters

    Our What's New in v25.1 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

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    Business Model Design with Entity Framework Core

    XAF WinForms and ASP.NET Core Blazor Server UI support the Entity Framework Core data model. Additionally you can use Security System for Entity Framework Core in non-XAF apps.

    Entity Framework Core support in XAF is provided by the following assemblies:

    • DevExpress.ExpressApp.EFCore.v25.1.dll
    • DevExpress.EntityFrameworkCore.Security.v25.1.dll

    Note

    You can find the currently supported EF Core package versions in the following help topic: Supported EF Core Versions. To locate the version you use, check the Microsoft.EntityFrameworkCore package - a dependency of the YourProjectName.Module project.

    We extensively test our Entity Framework support against Microsoft SQL Server only.

    Please contact us if you encounter issues with other database providers.

    If you use the Solution Wizard to create an EF Core-based XAF solution, then the wizard installs EF Core automatically. For instructions on how to install EF Core manually, refer to the following help topic: Installing Entity Framework Core.

    See Also