Question

我有一个技术人员存储库，返回8个结果。我想用这些结果实例化ViewModel属性。我怎样才能做到这一点？

public class TechnicianViewModel
{
    public Guid ID { get; set; }
    public string UserName { get; set; }
    public string Bio { get; set; }
    public string GenerateName()
    {
        string str = GenerateURL();
        str = str + ".jpg";
        return str;
    }
    public string GenerateURL()
    {
        string phrase = string.Format("{0}", UserName);
        string str = phrase.ToLower();
        str = Regex.Replace(str, @"\s", "-");
        return str;
    }
}

数据对象返回的值包含分组为技术人员模型的8个结果。

技术员模型看起来像这样。

   public class Technician
   {
    [ScaffoldColumn(false)]
    [Key]
    public Guid UserId { get; set; }

    [Required]
    public string UserName { get; set; }

    [Required]
    public bool Licensed { get; set; }

    [Required]
    public bool Insured { get; set; }

    [Required]
    public bool DrugTested { get; set; }

    public string EducationalLevel { get; set; }

    public string Specialities { get; set; }

    public string Bio { get; set; }

    [Required,Display(Name = "Date of Birth")]
    public DateTime DOB { get; set; }

    public bool IsFormerTech { get; set; }

    public DateTime ExperienceDate { get; set; }

    public string MobilePhone { get; set; }

    [Required]
    public string Branch { get; set; }

    public DateTime ApprenticeshipStatusDate { get; set; }

    public string ActivityStatus { get; set; }

    public string ReviewURL { get; set; }

编辑： -

我已将查询移出构造函数，现在我将尝试在控制器中访问它。

    public class TechnicianController : Controller
   {
    private readonly AADataContext aADataContext;
    private readonly UnitOfWork unitOfWork;
    private readonly TechnicianViewModel TechnicianViewModel;


    public TechnicianController(AADataContext context)
    {
        aADataContext = context;
        unitOfWork = new UnitOfWork(aADataContext);
        var data = unitOfWork.TechnicianRepository.GetAll().Where(c => c.Branch == "Calgary").Where(a => a.ActivityStatus == "Active");


    }

Answer 1

我认为查询不属于视图模型。如果需要视图模型的集合，请将此查询移出构造函数。您可以在控制器操作中执行此操作。

public ActionResult GetTechnicians(string branch, string status)
{
    var data = unitOfWork.TechnicianRepository.GetAll()
                   .Where(c => c.Branch == "Calgary")
                   .Where(a => a.ActivityStatus == "Active")
                   .Select(t => new TechnicianViewModel
                   {
                       Id = t.UserId,
                       UserName = t.UserName,
                       Bio = t.Bio
                   });
    ...
}

如果您有多个这样的问题，或者如果您发现自己重复此查询，请将其移至新班级。

public class TechnicianService
{
    private AADataContext context;

    public TechnicianService(AADataContext context)
    {
        this.context = context;
    }

    public IEnumerable<TechnicianViewModel> GetTechnicians(string branch, string status)
    {

    }
}

如何基于IEnumerable数据对象创建ViewModel的多个实例？

1 个答案: