Comparison of several o/R Mapping frameworks under. net, verification of data entities

ArticleDirectory

• System. componentmodel. dataannotations (. net4 Silverlight)
• Framework

Several. Net o/R frameworks

Name	URL	Pros	Cons
Microsoft Entity Framework	Msdn	Official support Good Visualization	Relatively short development time
Nhib.pdf	Http://nhforge.com	Development support, long time	Relatively complex
subsonic	http://subsonicproject.com	active record auto-generate code	open source, not flexible
Genome	Http://www.genom-e.com	Flexible Auto-generate code	Expensive, Sparse documentation

Data entity Verification

You can use the annotation attribute or verification framework in. net4.

System. componentmodel. dataannotations (. net4 Silverlight)

One of these is for data validation using attributes, and another is the visual description of fields, properties, and methods, or to customize the Data Type of a specific property. these three categories are classified in. net Framework as validation attributes, display attributes, and data modeling attributes.

Framework

Validation application block, which is available with Microsoft Enterprise Library 5. 0 (http://entlib.codeplex.com/). http://entlib.codeplex.com/releases/view/46741

Nhib1_validation framework. http://sourceforge.net/projects/nhcontrib/