How to cast Object to its actual type?

Question

If I have:

void MyMethod(Object obj) {   ...   }

How can I cast obj to what its actual type is?

Answer 1

In my case AutoMapper works well.

AutoMapper can map to/from dynamic objects without any explicit configuration:

public class Foo {
    public int Bar { get; set; }
    public int Baz { get; set; }
}
dynamic foo = new MyDynamicObject();
foo.Bar = 5;
foo.Baz = 6;

Mapper.Initialize(cfg => {});

var result = Mapper.Map(foo);
result.Bar.ShouldEqual(5);
result.Baz.ShouldEqual(6);

dynamic foo2 = Mapper.Map(result);
foo2.Bar.ShouldEqual(5);
foo2.Baz.ShouldEqual(6);

Similarly you can map straight from dictionaries to objects, AutoMapper will line up the keys with property names.

more info https://github.com/AutoMapper/AutoMapper/wiki/Dynamic-and-ExpandoObject-Mapping