CODEWITHSUNDEEP
c#
Amin Uddin
Amin Uddin

Reputation: 1006

Add property an existing c# class during runtime

I have a class like "Person"...

 public class Person  
    {
       public string Name { get; set; }
       public int Id { get; set; }

    }

I have a DTO class like

 public class DTOAddress
    {
       public string City{ get; set; }
       public string Country{ get; set; }

    }

During runtime I need to get 'City' and 'Country' property in Person class. i.e My expected result will be...

 public class Person  
        {
           public string Name { get; set; }
           public int Id { get; set; }
           public string City{ get; set; }
           public string Country{ get; set; }
        }

At runtime.

Upvotes: 1

Views: 1013

Answers (3)

MariusUt
MariusUt

Reputation: 752

Trying to add properties at runtime is a very bad code smell at best (and impossible as worst - I won't say for sure it's definitely utterly impossible).

I recommend you rethink exactly what you're trying to achieve. If you know that it will always add City and Country to the class, why can't you just add them at compile-time? Telling us more about the problem in question could help us suggest alternative solutions.

Upvotes: 3

NeddySpaghetti
NeddySpaghetti

Reputation: 13495

You can try and use an ExpandoObject to add properties at run time. See this article.

dynamic expando = new ExpandoObject();
expando.Name = "Dude 1";

now the expando object contains a property Name with value Dude 1.

Upvotes: 2

Selman Genç
Selman Genç

Reputation: 101732

As far as I know this is not possible. Once a class is compiled you can't change it, it's done. But you can create a new class with new properties at runtime. There is a good information about that in MSDN:

Upvotes: 2

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