Question

我试图从ASP核心中的查询字符串查询数据库，我试图从查询字符串传递一个字符串数组，只返回具有特定类别的项目。

这些类别位于一个名为CardTypes的集合中，该集合随后包含一个Category对象，我试图将其与我的字符串数组进行比较。

我遇到的问题是每次执行查询时都会返回错误

System.InvalidOperationException：从范围''引用的'Models.Category'类型的变量't.Category'，但未定义

    public IQueryable<CardViewModel> GetCardsByName(string name, string[] types)
    {
        var cards = _context.Cards
        .Where(c => c.Name.ToLower().Contains(name.ToLower()))
        .Where(c=> c.CardTypes.Any(t => types.Contains(t.Category.Name)))
        .Take(10).ProjectTo<CardViewModel>();
        return cards;
    }

型号：卡片型号

public class Card : IEntityBase
{
    public int Id { get; set; }
    public string ImagePath { get; set; }
    [StringLength(150)]
    public string Name { get; set; }
    public Rarity Rarity { get; set; }
    [StringLength(1250)]
    public string Text { get; set; }
    [StringLength(1250)]
    public string Flavor { get; set; }
    [StringLength(5)]
    public string Power { get; set; }
    [StringLength(5)]
    public string Toughness { get; set; }

    public ICollection<CardType> CardTypes { get; set; }
    public ICollection<CardSubType> CardSubTypes { get; set; }
    public ICollection<CardSuperType> CardSuperTypes { get; set; }
    public ICollection<CardColor> Colors { get; set; }
    public ICollection<Legality> Legalities { get; set; }
    public ICollection<Rulling> Rullings { get; set; }

    public string Printings { get; set; }

    public Set Set { get; set; }
}

CardType：

public class CardType : IEntityBase
{
    public int Id { get; set; }

    public Card Card { get; set; }

    public Category Category { get; set; }
}

类别：

public class Category : IEntityBase
{
    public int Id { get; set; }
    [StringLength(64)]
    public string Name { get; set; }
}

.net核心Linq包含数组

0 个答案: