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Docs > Storage, ORM, and Business Model Design > Data Types Supported by built-in Editors > Collection Properties
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V22.1
.NET Framework 4.5.2+
Cross-Platform .NET App UI (XAF)
Getting Started
Installation, Upgrade, Version History
Application Shell and Base Infrastructure
Storage, ORM, and Business Model Design
Business Model Design with Entity Framework Core
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 Supported by built-in Editors
Key Properties
String Properties
Numeric Properties
Date and Time Properties
Boolean Properties
BLOB Image Properties
Collection Properties
Collection Properties in XPO
Collection Properties in EF Core
Reference (Foreign Key, Complex Type) Properties
File Attachment Properties
Type Properties
Enumeration Properties
Criteria Properties
Color Properties
Geolocation Properties
Miscellaneous Property Types
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
Data Security and Safety
Backend Web API Service
Validation (Prevent Data Errors)
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Download CHM

Collection Properties

XAF applications display collection properties in nested List Views. Different collection properties have different Actions in a UI.

Note

Refer to the Property Editors | Collection Properties section in the Feature Center demo installed with XAF to see Collection Property Editors in action. The Feature Center demo is installed in %PUBLIC%\Documents\DevExpress Demos 22.1\Components\XAF\FeatureCenter.NETFramework.XPO. The ASP.NET Web Forms version of this demo is available online at https://demos.devexpress.com/XAF/FeatureCenter/.

Examples

Property Editors for Collection Properties

WinForms and ASP.NET Web Forms applications use the ListPropertyEditor to display collection properties in the NestedFrameTemplateV2 and NestedFrameControlNew. The UI-independent ListPropertyEditor creates a Template and Frame that contains a List View. This List View uses the ListView.CollectionSource of the PropertyCollectionSource type. For more information on Templates, Frames, and Views refer to the UI Element Overview topic.

In the Model Editor, set the IModelMemberViewItem.View property to a custom List View to use this View instead of the default one. You can also manage the New, Delete, Link, or Unlink Action’s visibility in the Model Editor. Set the List View’s AllowNew, AllowDelete, AllowLink, or AllowUnlink property to false to hide these Actions.