AutoMapper使用簡單總結

2. demo中使用到的類

public class order

public decimal? totalamount 
public bool? isenable 
public orderdetail orderdetaientity 
public listproductlist 
}public class orderdetail
public datetime? orderdate 
public string orderuser 
public datetime? closeddate 
}public class productdetail
public string productname 
public decimal? price 
}public class orderdto
public decimal totalamount 
public bool isenable 
public string remark 
public orderdetaildto orderdetaientity 
public listproductlist 
}public class orderdetaildto
public string orderuser 
public datetime? closeddate 
}public class productdetaildto
public string productname 
public decimal? price 
}

(1) 屬性型別和名稱相同的物件之間直接對映

productdetail product = new productdetail();

(2) 物件之間屬性轉換、屬性忽略

.formember(dest => dest.id, opt => opt.mapfrom(src => src.id))

.formember(dest => dest.totalamount, opt => opt.mapfrom(src => src.totalamount ?? 0))

.formember(dest => dest.isenable, opt => opt.mapfrom(src => src.isenable ?? false))

.formember(dest => dest.remark, opt => opt.mapfrom(src => src.orderdetaientity.remark))

.formember(dest => dest.orderdetaientity, opt => opt.ignore())

(3)屬性填充固定值

.formember(dest => dest.orderdate, opt => opt.usevalue(datetime.now));

(4)包含子物件的物件對映，需要先對映子物件

.formember(dest => dest.orderdate, opt => opt.usevalue(datetime.now));

.formember(dest => dest.id, opt => opt.mapfrom(src => src.id))

.formember(dest => dest.totalamount, opt => opt.mapfrom(src => src.totalamount ?? 0))

.formember(dest => dest.isenable, opt => opt.mapfrom(src => src.isenable ?? false))

.formember(dest => dest.remark, opt => opt.mapfrom(src => src.orderdetaientity.remark));

或者可以這樣寫

.formember(dest => dest.id, opt => opt.mapfrom(src => src.id))

.formember(dest => dest.totalamount, opt => opt.mapfrom(src => src.totalamount ?? 0))

.formember(dest => dest.isenable, opt => opt.mapfrom(src => src.isenable ?? false))

.formember(dest => dest.remark, opt => opt.mapfrom(src => src.orderdetaientity.remark));

//對映子物件

exp.formember(dest => dest.orderdetaientity, opt => opt.mapfrom(dto => new orderdetaildto() ));

或者也可以這樣寫

.formember(dest => dest.orderdate, opt => opt.usevalue(datetime.now));

();()

.formember(dest => dest.id, opt => opt.mapfrom(src =>src.id))

.formember(dest => dest.totalamount, opt => opt.mapfrom(src => src.totalamount ?? 0

)) .formember(dest => dest.remark, opt =>opt.ignore())

.formember(dest => dest.isenable, opt =>opt.ignore())

//包含多個相同子物件時

(src.orderdetaientity)

));(5）轉化存在的物件

.formember(dest => dest.orderdate, opt => opt.usevalue(datetime.now));

.formember(dest => dest.id, opt => opt.mapfrom(src => src.id))

.formember(dest => dest.totalamount, opt => opt.mapfrom(src => src.totalamount ?? 0))

.formember(dest => dest.remark, opt => opt.ignore())

.formember(dest => dest.isenable, opt => opt.ignore());

var orderdto4 = new orderdto() ;

(6)其他的, 通過自定義轉化來實現

如可以實現  typeconverter， valueresolver，valueformatter  抽象方法.

3.其他說明

(1)檢查還有那些規則沒有寫完整，可以在最後呼叫下面的方法

(2)重新配置對映 

4. 參考**

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