This document provides an overview of the eXpressApp Framework (XAF) and its object relational mapper (ORM) component, XPO. XAF is a development framework that allows building business applications targeting Windows, web and mobile from a single code base. It provides features like automatic CRUD UI generation, runtime customization, common modules for reporting, security and more. XAF aims to improve developer productivity by reducing the need for low-level coding and sharing code across platforms and databases.

1. XAF/XPO Overview
DONE BEFORE LUNCH

2. Agenda
 What is XAF and XPO?
 Why XAF/XPO?
 XPO Overview
 XAF Overview
 Demo
 Community

3. What is XAF?
Regular Development of
LOB
• Database
• UI Design
• UX
• Code
• Reporting
• Security

4. What is XAF?
Adopt a Universal Software Product - Microsoft Dynamics AX
• No Extensibility
• No Customization
• As Is
• Lack on Performance
• Specials Language and
Methodology

5. What is XAF?
eXpressApp Framework (XAF)
is a versatile application framework that allows developers to
build business applications that target Windows, Web, and Mobile.
What is Not:
• Single Code Base for
Web/Windows/Mobile
• Mature
• Transparent
• Access to source code
• Thousands of public tickets with
samples
• Demos
• Community
• Premium support

6. What is XAF?

7. Who is XAF for?
C#, VB.NET,
SQL, JavaScript,
HTML, CSS, XML
XAF Primary target audience are ISVs
(teams of developers creating apps for
SME)
.NET Developers with experience in line-of-business app
development.

8. Why XAF?
We asked that to the XAFers Community and to our DevExpress MVPs:
• Number one answer was Productivity
• Number two was Extensibility
• With XAF your team speaks
the same language
In12 hours we
migrated an app
that it took us 6
weeks before.
I had a prototype ready
for my client the next
day.
Want to use
other DB? No
problem

9. Why XAF? – Most Loved
Features
• Automatic database and CRUD UI generation for
Windows, Web and Mobile platforms including support
for over a dozen RDBMS with EF Core and XPO ORM
libraries.

11. Why XAF? – Most Loved
Features
• Rich runtime UI customization
for both developers and end
users. Your apps can address
changing business
requirements without the
need for redeployment.

12. Why XAF? – Most Loved
Features

13. Why XAF? – Most Loved
Features
Out of the box common business essentials like:
• Reporting
• Security
• Validation
• Data visualization and analytics
These modules are fully configurable.

14. Why XAF? – Most Loved
Features
• .NET business logic and UI configuration code are shared across platforms and
databases.

16. Why XAF? – Most Loved
Features
• With XAF, developers can
stay focused on business
rules, rather than on low-
level coding such as
database and UI
management.

17. Why XAF?
• Common Language for Teams
• XAF gives you a recipe for
developing a LOB app with best
practices in mind
• XAF, reduces cost and maximize
reach

18. Why XAF? - Testimonials

19. Real applications for real world
problems
ERP with XAF that serves more than 900 companies in
DACH and South Tirol regions with just 7 developers.

20. Real applications for real world
problems
Management of Patient Care and Safety

21. Real applications for real world
problems
Water and Sewer Company
Dominican Republic

22. XPO – What is an ORM?
DB
XPO
Classes
Data Model

23. XPO
• Mature ORM
• Cross Platform
• Transparent and
Controllable
• XPO Profiler

24. XPO
• Database Independent
• Extensible and Customizable
• Existing Database - Persistent Class Generation

25. XPO
• Caching
• Support for
StoredProcedures and Views
• Good for distributed
applications
• Performance

26. XPO
• Transaction Support
• Lazy Loading /Navigation Properties
• Associations/Aggregation
• Bindable and Pageable Object
Collections
• Optimistic Locking - ("First in wins"
rule).
• Deferred Deletion
• Precise Definition of the Column
Type
• Custom Type Converters
• Custom Constraints and Indexes
• Naming Conventions
• SimpleDataLayer
• ThreadSafe DataLayer

27. XAF
• Structure
• Data Access: ObjectSpace API
• Views
• Controllers
• Actions
• Modules
• Model
• Security
• Reporting and Dashboards
• Localization

28. XAF
ORM
(XPO or EF)
DB
Classes
& BCL
Controllers Model
UI

30. Structure
• Project.Module
• Project.Module.Web
• Project.Module.Win
• Project.Web
• Project.Win
• Blazor

31. ObjectSpace

32. Views
CompositeView
DashboardView
ListView DetailView
View
ObjectView

33. Views
DetailView
DashboardView
ListView
Lookup ListView

34. Controllers & Actions
• ViewController
• WindowsController
• ObjectViewControlle
r
• SimpleAction
• PopupWindowShowActio
n
• ParametrizedAction
• SingleChoiceAction
• ActionUrl

35. 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
• Scheduler Module
• Script Recorder Module
• State Machine Module
• TreeList Editors Module
• Validation Module
• View Variants Module
• Workflow Module

36. Model

37. Security

38. Security
• Administrative Permission
• Permission Policy
• Navigation Permissions
• Type Permissions
• Object Permissions
• Member Permissions
• Action Permissions
• Permissions for One-to-Many
and Many-to-Many Associations

39. BI
• Reports

40. BI
• Dashboards

41. Localization
• Localization Service

42. Demo

43. Community
• LinkedIn
• Facebook
• Meetup
• Gitter
• Twitter
• XAFers Weekly

45. After XAF takes care all of this is for you:
• UI for Web, Windows, Mobile -Design Once. Run
Everywhere.
• Database creation and CRUD operations
• Over 20 featured ready-to-use Modules
• Unit & Functional Testing Delivered.
• Our Answer is:
You can add more
value

46. Thank You