Use of AutoMapper

General use, usually first initialized configuration, an application only need to initialize once

Mapper.initialize (cfg = cfg. Createmap<order, orderdto>());     // or    var New Mapperconfiguration (cfg = cfg. Createmap<order, orderdto> ());

var mapper = config. Createmapper (); // or var New  = mapper. Map<orderdto>(order); // or Orderdto DTO = mapper.map<orderdto> (order);

Convert between entity and DTO using automapper, mapping between different fields

AutoMapper.Mapper.Initialize (cfg = cfg. Createmap<streetevent, streeteventdto>()            = dest. EVTSRC, opt = opt. Mapfrom (src = src.evt_src))            = dest. MapId, opt = opt. Mapfrom (src = src.map_id))            ;             var targetlist = automapper.mapper.map<list<streeteventdto>> (List);

For custom type conversions between entities, refer to:

Https://github.com/AutoMapper/AutoMapper/wiki/Custom-type-converters

    Public classSource { Public stringValue1 {Get;Set; }  Public stringValue2 {Get;Set; }  Public stringValue3 {Get;Set; } }   Public classDestination { Public intValue1 {Get;Set; }  PublicDateTime Value2 {Get;Set; }  PublicType Value3 {Get;Set; } }[test] Public voidExample () {mapper.initialize (cfg={cfg. Createmap<string,int>().          Convertusing (Convert.ToInt32); Cfg. Createmap<string, Datetime> (). Convertusing (NewDatetimetypeconverter ()); Cfg. Createmap<string, Type> (). Convertusing<typetypeconverter>(); Cfg. Createmap<source, destination>();        });            Mapper.assertconfigurationisvalid (); varSource =NewSource {Value1="5", Value2="01/01/2000", Value3="automappersamples.globaltypeconverters.globaltypeconverters+destination"        }; Destination result= Mapper.map<source, destination>(source); Result. Value3.shouldequal (typeof(Destination)); }         Public classdatetimetypeconverter:itypeconverter<string, datetime>    {         PublicDateTime Convert (stringsource, DateTime destination, Resolutioncontext context) {            returnSystem.Convert.ToDateTime (source); }    }         Public classtypetypeconverter:itypeconverter<string, type>    {         PublicType Convert (stringsource, Type destination, Resolutioncontext context) {              returncontext.        SourceType; }    }

The conversion of custom entity values, which is applicable to the value type calculation of the target and the source entity directly, refer to

Https://github.com/AutoMapper/AutoMapper/wiki/Custom-value-resolvers

 Public classSource { Public intValue1 {Get;Set; }  Public intValue2 {Get;Set; } }         Public classDestination { Public intTotal {Get;Set; } }   Public classCustomresolver:ivalueresolver<source, Destination,int>    {         Public intResolve (source source, Destination Destination,intmember, Resolutioncontext context) {            returnSource. Value1 +source.        Value2; }}mapper.initialize (cfg=CFG. Createmap<source, destination>()         . Formember (dest= = Dest. Total, opt + = opt. Resolveusing<customresolver>());        Mapper.assertconfigurationisvalid (); varSource =NewSource {Value1=5, Value2=7        }; varresult = Mapper.map<source, destination>(source); Result. Total.shouldequal ( A);

 Public classmultby2resolver:ivalueresolver<Object,Object,int> {     Public intResolve (ObjectSourceObjectDestintDestmember, Resolutioncontext context) {        returnDestmember *2; }} mapper.initialize (cfg= cfg. Createmap<source, destination>()        . Formember (dest=Dest. Total, opt= = Opt. Resolveusing (NewCustomresolver ())); Mapper.initialize (CFG={cfg. Createmap<source, destination>()    . Formember (dest=Dest. Total, opt= = Opt. Resolveusing<customresolver,decimal> (src =src. SubTotal)); Cfg. Createmap<othersource, otherdest>()    . Formember (dest=Dest. Othertotal, opt= = Opt. Resolveusing<customresolver,decimal> (src =src. othersubtotal);}); Public classcustomresolver:imembervalueresolver<Object,Object,decimal,decimal> {     Public decimalResolve (ObjectSourceObjectDestinationdecimalSourcemember,decimalDestinationmember, Resolutioncontext context) {//Logic here    }}

Use of AutoMapper