小编Jes*_*vdb的帖子

我正在使用.NET Core和EF Core进行Web项目.我正在努力如何查询多对多的关系.这就是我的模型:

public class Begrip
{
    public int ID { get; set; }
    public string Name { get; set; } 
    public string Desc { get; set; }
    [Url]
    public string URL { get; set; } 
    public ICollection<BegripCategory> Categories { get; set; } 
}

public class Category
{
    public int ID { get; set; }
    public string Name { get; set; } 
    public ICollection<BegripCategory> Begrippen { get; set; }
}

public class BegripCategory
{
    public int begripId { get; set; …