问题
I am considering using xVal for validation of Entity Framework classes in a MVC application. This involves writing metadata classes as explained in details by Graham O'Neale (http://goneale.com/2009/03/04/using-metadatatype-attribute-with-aspnet-mvc-xval-validation-framework).
I am wondering if there's a way to auto generate such metadata classes using the metadata from the SQL database (for example: not null fields will have [Required] class attribute.
回答1:
You could use Code Smith tool www.codesmithtools.com (there is a free version if I remember correctly)
回答2:
I wrote an application that will read an existing database and then generate a Data Annotation Class for every table (excluding aspnet_* and VersionInfo).
http://pfsolutions-mi.com/Product/MetaDataClassGenerator
回答3:
In EF 4, you can easily customize the code generation via a T4 template.
来源：https://stackoverflow.com/questions/2229716/auto-generating-metadata-classes-for-entity-framework