How Can I add properties to a class on runtime in C#?

Question

I have a class :

class MyClass 
{
}
...
MyClass c = new MyClass();

Is it possible to add properties / fields to this class on run-time ?

Answer 1

Yes, you can use the ExpandoObject class to achieve this.

dynamic expando = new ExpandoObject();
expando.Prop1 = 10;
expando.Prop900 = string.Empty;