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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Reflection;
  5.  
  6. public class Test
  7. {
  8. 	public int[] intValues;
  9.  
  10. 	public static void Main()
  11. 	{
  12. 		string[] arrayData = { "20", "30", "40" };
  13. 		FieldInfo f = typeof(Test).GetField("intValues");
  14. 		Type t = f.FieldType.GetElementType();
  15. 		Test test = new Test();
  16. 		f.SetValue(test, GenericConvert.ChangeArrayType(arrayData, t));
  17.  
  18. 		Console.WriteLine("int values: {0}",
  19.             string.Join(", ", test.intValues.Select(v => v.ToString()))
  20.         );
  21. 	}
  22. }
  23.  
  24. public class GenericConvert
  25. {
  26.     public static object ChangeArrayType<S>(IEnumerable<S> a, Type t)
  27.     {
  28.         MethodInfo methodDefinition = typeof(GenericConvert).GetMethod("ChangeArrayTypeGeneric");
  29.         MethodInfo method = methodDefinition.MakeGenericMethod(t, typeof(S));
  30.         return method.Invoke(null, new object[] { a });
  31.     }
  32.  
  33.     public static T[] ChangeArrayTypeGeneric<T, S>(IEnumerable<S> a)
  34.     {
  35.         return a.Select(x => (T) Convert.ChangeType(x, typeof(T))).ToArray();
  36.     }
  37. }
Success #stdin #stdout 0.05s 24512KB
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Standard input is empty
stdout
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int values: 20, 30, 40
https://ideone.com/3E1TGc
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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