c# - 将对象与一个数组与另一个数组进行比较

Question

我有一个模型组:

public class GroupModel
{
    [Key]
    public int GroupModelId { get; set; }

    [Required]
    [MaxLength(50)]
    [DataType(DataType.Text)]
    public string GroupName { get; set; }

    [Required]
    public virtual ICollection<FocusArea> FocusAreas { get; set; }

    ...

还有一个模型焦点:

public class FocusArea
{
    public int FocusAreaId { get; set; }
    public FocusEnum Focus { get; set; }

    public List<ApplicationUser> ApplicationUser { get; set;  }

    public virtual ICollection<GroupModel> GroupModel { get; set; }


public enum FocusEnum
{
    Psych,
    Medical,
    LivingWith
}

Group 和 Focus 是多对多的关系。我的 Controller 正在接收:

public ActionResult GroupSearch(string[] focusSelected) // Values possible are Pysch, Medical and LivingWith
{
    List<GroupModel> groups;

    ...

问题:我想选择所有焦点都在 focusSelected 数组中的组。

我尝试过的:

groups = groups.Where(t => t.FocusAreas.Where(x => focusSelected.Contains(x.Focus))).ToList()).ToList();

显然不起作用。有人有其他想法吗？

Answer 1

这可能对你有帮助

 var result = groups.Where(g => g.FocusAreas.All(f => focusSelected
              .Any(fs => (FocusEnum)Enum.Parse(typeof(FocusEnum), fs, true) == f.Focus)));