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我有一个移动应用程序,我试图利用windows phone数据库。 但是我遇到了一个小问题。Linq to SQL多对多关系,使用集合
这是我到目前为止。
[Table]
public class CollectionManager
{
[Column(IsPrimaryKey = true)]
public int FilmID { get; set; }
[Column(IsPrimaryKey = true)]
public int CollectionID { get; set; }
private EntityRef<FilmData> film;
[Association(ThisKey = "FilmID", OtherKey = "ID", Storage = "film")]
public FilmData Film{ get { return film.Entity; } set { film.Entity = value; } }
private EntityRef<Collection> collection;
[Association(ThisKey = "CollectionID", OtherKey = "ID", Storage = "collection")]
public Collection Collection { get { return collection.Entity; } set { collection.Entity = value; } }
}
[Table]
public class FilmData
{
[Column(IsPrimaryKey = true)]
public int FilmID { get; set; }
[Association(ThisKey = "ID", OtherKey = "FilmID")]
public EntitySet<CollectionManager> CollectionManager { get; set; }
}
[Table]
public class Collection
{
[Column(IsPrimaryKey = true)]
public int CollectionID { get; set; }
[Association(ThisKey = "ID", OtherKey = "CollectionID ")]
public EntitySet<CollectionManager> CollectionManager { get; set; }
}
因此,这些都是我的3个表,但是我很努力
- 电影添加到收藏
- 获取集合中的所有影片。
我非常感谢任何帮助,非常感谢您花时间阅读本文!