[C#6.0]新語法

先筆記一下
1.nameof 表示式
2.字串插值 
3.Null 條件運算子

請參考
https://www.huanlintalk.com/2015/01/csharp6-enhanced-expressions.html
https://docs.microsoft.com/zh-tw/dotnet/csharp/language-reference/keywords/nameof
https://docs.microsoft.com/zh-tw/dotnet/csharp/tutorials/string-interpolation
https://docs.microsoft.com/zh-tw/dotnet/csharp/language-reference/operators/null-conditional-operators

[AutoMapper]使用方式

1.使用Nuget 搜尋套件AutoMapper並安裝

2. namespace 加入 using AutoMapper;

3.以下為基本使用方式

var query = db.vw_SchoolStdTotal.ToList();
var config = new MapperConfiguration(cfg => cfg.CreateMap<vw_SchoolStdTotal, SchoolStdTotalDataModel>());
config.AssertConfigurationIsValid();
var mapper = config.CreateMapper();
result = mapper.Map<List<vw_SchoolStdTotal>, List<SchoolStdTotalDataModel>>(query);

var config = new MapperConfiguration(
cfg => cfg.CreateMap<SchoolStdTotalDataModel, vw_SchoolStdTotalViewModel>()
//忽略此欄對應
.ForMember(d => d.SchoolName, o => o.Ignore())
.ForMember(d => d.ProfessionGroupDetailName, o => o.MapFrom(s => s.ProfessionGroupDetailName == null ? "國中部" : s.ProfessionGroupDetailName))
 //資料源使用function處理
.ForMember(d => d.Button, o => o.MapFrom(s => dataListButton.ForGetTotalNumberHighSchoolList(desFun.DESEncrypt(s.ID.ToString())))));

更新資料寫法
不需要的欄位使用Ignore排除，關聯Key也要排除不然會出錯

     var query = db.PersonalInfo.Where(f => f.ID == ID).FirstOrDefault();
         if (query != null)
         {
             var config = new MapperConfiguration(
                 cfg => cfg.CreateMap()
                           .ForMember(d => d.x1, o => o.Ignore())
                           .ForMember(d => d.x2, o => o.Ignore())
                           .ForMember(d => d.ModifyDate, o => o.MapFrom(s => DateTime.Now)));
             config.AssertConfigurationIsValid();
             var mapper = config.CreateMapper();
             //PersonalInfo personalInfo = db.PersonalInfo.Find(21);
             mapper.Map(viewModel, query);
             db.SaveChanges();
         }

未完待續.......

參考來源
https://automapper.org/