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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. namespace BaseClassTester
  5. {
  6.     public class Program
  7.     {
  8.         abstract class SuperClass<T> where T : SuperDataClass
  9.         {
  10.         }
  11.  
  12.         abstract class SuperDataClass
  13.         {
  14.         }
  15.  
  16.         class DataClassA : SuperDataClass
  17.         {
  18.         }
  19.  
  20.         class ClassA : SuperClass<DataClassA>
  21.         {
  22.         }
  23.  
  24.         class DataClassB : SuperDataClass
  25.         {
  26.         }
  27.  
  28.         class ClassB : SuperClass<DataClassB>
  29.         {
  30.         }
  31.  
  32.         static void Main()
  33.         {
  34.             bool res = IsBasedOnSuperClass(typeof(ClassA));
  35.             Console.WriteLine("{0}: {1}", typeof(ClassA), res);
  36.  
  37.             bool res2 = IsBasedOnSuperClass(typeof(List<int>));
  38.             Console.WriteLine("{0}: {1}", typeof(List<int>), res2);
  39.         }
  40.  
  41.         static bool IsBasedOnSuperClass(Type type)
  42.         {
  43.             Type type2 = type; // type is your type, like typeof(ClassA)
  44.  
  45.             while (type2 != null)
  46.             {
  47.                 if (type2.IsGenericType &&
  48.                     type2.GetGenericTypeDefinition() == typeof(SuperClass<>))
  49.                 {
  50.                     return true;
  51.                 }
  52.  
  53.                 type2 = type2.BaseType;
  54.             }
  55.  
  56.             return false;
  57.         }
  58.     }
  59. }
Success #stdin #stdout 0.03s 33912KB
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stdin
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Standard input is empty
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BaseClassTester.Program+ClassA: True
System.Collections.Generic.List`1[System.Int32]: False
https://ideone.com/oqvYx6
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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