Application Model
- 2 minutes to read
Two major features of the eXpressApp Framework are automatic UI construction, and the ability to produce applications for different target platforms using the same business logic. This means that visual elements in your application are automatically generated, based on data classes and other special class types you have declared. So, the eXpressApp Framework scans the application code, extracts the desired classes, analyzes them, and then builds the database structure and user interface. The result of class declaration analysis is the creation of metadata - data that defines database structure and application features via a neutral format, that can be adopted to any target platform. This metadata is called the Application Model. It is a powerful tool that allows you to customize your application both at design and runtime.
To learn more about the Application Model, please refer to the following topics:
Concepts
- Application Model Basics
- Business Model in the Application Model
- Model Editor
- Application Model Structure
- Access the Application Model in Code
- Extend and Customize the Application Model in Code
- Built-in Nodes Generators
- Convert Application Model Differences
- Model Difference Storages
Tutorial
Task-Based Help
- How to: Apply Application Model Changes to the Current View Immediately
- How to: Extend the Application Model
- How to: Create Additional ListView Nodes in Code using a Generator Updater
- How to: Localize an XAF Application
- How to: Localize Custom String Constants
- How to: Merge End-User Customizations into the XAF Solution
- How to: Use Function Criteria Operators to Filter List Views
- How to: Use XPO Upcasting in XAF
- How to: Store the Application Model Differences in the Database