Question

我坚持验证问题。

我使用ModelState来验证来自帖子请求的模型。这是我的模特：

MatchGroup模型

    [Key]
    [Display(Name = "MatchGroupId", ResourceType = typeof(Resources.MatchGroupResources))]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]        
    public Guid MatchGroupId { get; set; }

    [Required(ErrorMessageResourceName = "ValidationRequired", ErrorMessageResourceType = typeof(Resources.GeneralResources))]
    [Display(Name = "MatchGroupName", ResourceType = typeof(Resources.MatchGroupResources))]
    [MinLength(3, ErrorMessageResourceName = "ValidationMinLength", ErrorMessageResourceType = typeof(Resources.GeneralResources))]
    [MaxLength(50, ErrorMessageResourceName = "ValidationMaxLength", ErrorMessageResourceType = typeof(Resources.GeneralResources))]
    public string MatchGroupName { get; set; }

    // foreign key
    public virtual Category Category { get; set; }

CategoryModel

    [Key]
    [Display(Name = "CategoryId", ResourceType = typeof(Resources.CategoryResources))]
    [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public Guid CategoryId { get; set; }

    [Required(ErrorMessageResourceName = "ValidationRequired", ErrorMessageResourceType = typeof(Resources.GeneralResources))]
    [Display(Name = "CategoryName", ResourceType = typeof(Resources.CategoryResources))]
    [MinLength(3, ErrorMessageResourceName = "ValidationMinLength", ErrorMessageResourceType = typeof(Resources.GeneralResources))]
    [MaxLength(50, ErrorMessageResourceName = "ValidationMaxLength", ErrorMessageResourceType = typeof(Resources.GeneralResources))]
    public string CategoryName { get; set; }

正如您所看到的那样，＆＃34; Name＆＃34;领域。它适用于直接对象，但是当我尝试将MatchGroup对象放入数据库时，Controller会抛出ModelState验证错误＆＃34; Category Name＆＃34;是必需的。

我的请求（POST）如下所示：关键：价值

    MatchGroupName: MatchGroup 4
    Category.CategoryId: 5B8D3AC8-8C97-4BCB-AC1A-1D61BDDADEEF

我这样做是因为我最近使用下面的行来附加现有对象：

    context.Category.Attach(model.Category);

当我关闭线条时，它没问题，但是有了它们我无法继续：

    if (!ModelState.IsValid)
    {
        return ResultModelsHelper<MatchGroup>.GetModelStateResponse(ModelState);
    }

我错过了什么吗？如何禁用验证此外来对象的Category对象？也许我从POST获取数据错误，我应该将其传递给其他模型变量？

我在stackoverflow找到的最快的事情是在检查IsValid之前添加一行，但我不知道这是不是一个好主意：

    ModelState.Remove("model.Category.CategoryName");

.NET，EF6 - 禁用递归验证

0 个答案: