using System;
using System.Linq;
using System.Collections.Generic;

public class Test
{
	class Foo<T> {
		public List<T> field1;
		public List<int> field2;
	}
	
	public static void Main()
	{
		var t = typeof(Foo<string>);
		var g = t.GetGenericTypeDefinition();
		var a = g.GetGenericArguments();
		foreach (var f in g.GetFields()) {
			var ft = f.FieldType;
			if (!ft.IsGenericType) continue;
			var da = ft.GetGenericArguments();
			if (da.Any(xt => a.Contains(xt))) {
				Console.WriteLine("Field {0} uses generic type parameter", f.Name);
			} else {
				Console.WriteLine("Field {0} does not use generic type parameter", f.Name);
			}
		}
	}
}