how to convert anonymous type to known type

问题

I have an anonymous type variable. This variable is get from another function, we couldn't change it.

// var a {property1 = "abc"; property2 = "def"}

I have a class:

class Myclass{
   string property1;
   string property2;
}

How to convert variable a to Myclass type. I tried

Myclass b = (Myclass)a; 

but it doesn't work.

If I initialize:

Myclass b = new Myclass{
  property1 = a.property1,
  property2 = a.property2,
} 

it is working, but it take a lot of code because MyClass has many properties

Can anyone help me? Thanks for any answer.

回答1:

You can't use casting here, because neither you anonymous type inherited from MyClass nor you have explicit type conversion operator defined for these types.

You can use AutoMapper (available from NuGet) to dynamically map between anonymous type and your class

var a = new {property1 = "abc", property2 = "def"};
Myclass b = Mapper.DynamicMap<Myclass>(a);

It maps properties of anonymous object to properties of destination type by name:

来源：https://stackoverflow.com/questions/24257872/how-to-convert-anonymous-type-to-known-type