问题描述
我向C＃项目添加了一个新的ADO.NET实体数据模型项，请求向导从现有数据库生成模型并包含所有表。令我感到惊讶的是，尽管我的所有表都作为模型中的对象引入，但它们之间没有关系，也没有导航属性，即使这些表在SQL Server 2008数据库中定义了许多关系。我刚刚开始学习EF / EDM，但我想知道我做错了什么，我没有在EDM中定义关系？谢谢，Dave
I added a new ADO.NET Entity Data Model item to a C# project, requesting the wizard to generate the model from an existing database and included all of the tables. I was suprised that though all my tables were brought in as objects in the model, there were no relationships between them and no navigation properties even though the tables had many relationships defined in the SQL Server 2008 database. I'm just starting to learn EF/EDM but am wondering what I did wrong that I got no relationships defined in the EDM? Thanks, Dave
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