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我有以下型号:

class Item
{
    public ICollection<string> GroupIds { get; set; }

    // Introduced for EF only
    public ICollection<Group> Groups { get; set; }
}

class Group
{
    public ICollection<string> ItemIds { get; set; }

    // Introduced for EF only
    public ICollection<Item> Items { get; set; }
}

class Store
{
    public ICollection<Item> Items { get; set; }

    public ICollection<Group> Groups { get; set; }
}

Store 包含 allItems和 all Groups,但 everyItem可能与一个或多个相关,Group并且 everyGroup可能与一个或多个相关Item

Item如何配置and之间的多对多关系Group以仅加载GroupIdsandItemIds而不加载对象本身?

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