what's an easy way to cast one object to another (same props)

Question

What's an easy way to cast one object to another when they have the same properties? For example:

public class Test1
{
   public string FirstName{ get; set; }
   public string LastName{ get; set; }
}

public class Test2
{
   public string FirstName{ get; set; }
   public string LastName{ get; set; }
}

So if I have a populated Test1 object and I want all of its values to be populated into Test2, then what's the easiest way to do that? I know I can set values 1-by-1 from Test1 to Test2 but I was wondering if you could recommend a quicker, easier way? Like test1.Map(test2) or something like that?

You use the word "cast", but you don't appear to actually be talking about casting. See marked duplicate for the answer to what you _do_ seem to be talking about. — Peter Duniho, Dec 25 '17 at 00:40

score 0 · Answer 1 · answered Dec 25 '17 at 00:36

If one can be inherited from the other:

public class Test1 {
   public string FirstName{ get; set; }
   public string LastName { get; set; }
}

public class Test2 : Test1 { }

then simple cast :

Test2 test2 = new Test2 { FirstName = "A", LastName = "B" };
Test1 test1 = test2;                                         // or var test1 = (Test1)test2;

what's an easy way to cast one object to another (same props)

1 Answers1