...because it doesn't seem to be in System.Com开发者_运维知识库ponentModel.DataAnnotations!
It is in that namespace, but was introduced in Entity Framework 4.1. Have you got that installed, and referenced EntityFramework.dll in your project?
Where is DatabaseGeneratedAttribute Data Annotation?
...because it doesn\'t seem to be in System.Com开发者_运维知识库ponentModel.DataAnnotations!It is in that namespace, but was introduced in Entity Framework 4.1. Have you got that installed, and refere
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![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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