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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static void Main()
  6. 	{
  7. 		var type = typeof(abc);
  8. 		object instanceToModify = new abc();
  9.  
  10. 		var typeToCreate = typeof(GenericClass<>).MakeGenericType(type);
  11. 		var methodToCall = typeToCreate.GetMethod("GenericMethod");
  12.  
  13. 		var genericClassInstance = Activator.CreateInstance(typeToCreate);
  14. 		methodToCall.Invoke(genericClassInstance, new[] { instanceToModify });
  15.  
  16. 		Console.WriteLine(((abc)instanceToModify).a);
  17. 		Console.WriteLine(((abc)instanceToModify).b);
  18. 		Console.WriteLine(((abc)instanceToModify).c);
  19. 	}
  20. }
  21.  
  22. public class GenericClass<T>
  23. {
  24.     public T GenericMethod(T obj)
  25.     {
  26.         // modify the object in some (arbitrary) way
  27.         var fields = obj.GetType().GetFields();
  28.         foreach (var field in fields)
  29.         {
  30.             if (field.FieldType == typeof(string))
  31.             {
  32.                 field.SetValue(obj, "This field's string value was modified");
  33.             }
  34.         }
  35.  
  36.         return obj;
  37.     }
  38. }
  39.  
  40. public class abc
  41. {
  42.     public string a;
  43.     public string b;
  44.     public int c;
  45. }
Success #stdin #stdout 0.01s 131648KB
comments (?)
stdin 
Standard input is empty
stdout 
This field's string value was modified
This field's string value was modified
0
https://ideone.com/KSZWig
language:
C# (gmcs 5.20.1)
created:
6 years ago
visibility:
public

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