自动映射器无法转换通用列表

Question

I have two collections of the following classes that I want to map:

 public class Client_Crime_ViewModel
    {
       public Client_Crime_ViewModel() { }

        public Client_Crime_ViewModel(CrimeIncident ci)
        {
            Id = ci.Id;
            CaseNumber = ci.CaseNumber;
            DateOfIncident = ci.DateOfIncident;
            Description = ci.Description;
        }

        public Int64 Id
        {
            get;
            set;
        }

        [Required]
        [DisplayName("Case Number")]
        public string CaseNumber { get; set; }

        [DataType(DataType.Date)]
        [Required]
        [DisplayName("Date of Incident")]
        public string DateOfIncident { get; set; }

        [DataType(DataType.MultilineText)]
        [Required]
        public string Description { get; set; }
    }



public class CrimeIncident
    {
        public Int64 Id { get; set; }

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

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

        [DataType(DataType.Date)]
        public string DateOfIncident { get; set; }

        public CrimeIncident() { }

        public CrimeIncident(string caseNumber, string dateOfIncident, string description)
        {
            CaseNumber = caseNumber;
            Description = description;
            DateOfIncident = dateOfIncident;
        }
    }

I have tried mapping in both of the following ways:

Method 1:

Mapper.CreateMap<List<Client_Crime_ViewModel>, List<CrimeIncident>>();
List<Client_Crime_ViewModel> cvmList = System.Web.Helpers.Json.Decode<System.Collections.Generic.List<Client_Crime_ViewModel>>(rb.Form["CrimeCollection"]);
List<CrimeIncident> ciList = Mapper.Map<List<Client_Crime_ViewModel>, List<CrimeIncident>>(cvmList);

Method 2:

Mapper.CreateMap<List<Client_Crime_ViewModel>, List<CrimeIncident>>();
List<Client_Crime_ViewModel> cvmList = System.Web.Helpers.Json.Decode<System.Collections.Generic.List<Client_Crime_ViewModel>>(rb.Form["CrimeCollection"]);
List<CrimeIncident> ciList = Mapper.Map<List<CrimeIncident>>(cvmList);

Both methods fail. Debugging reveals that although the element count for cvmList is > 0 , the element count for ciList remains at 0 .

Any idea what I am doing wrong? Thanks in advance.

Answer 1

您无需为列表创建映射，只需映射实体即可。