C#反射 ConcurrentDictionary问题

Question

反射方法网上挺多，能得到object类型的ConcurrentDictionary，可怎么转换？

 /a类
public class a{

    private class b{

    public string str;

   }
    private ConcurrentDictionary<string,b> dic = new ConcurrentDictionary<string,b>();

}


//reflex类  反射得到私有字段
public static T GetPrivateField<T>(this object instance, string fieldname)
        {
            BindingFlags flag = BindingFlags.Instance | BindingFlags.NonPublic;
            Type type = instance.GetType();
            FieldInfo field = type.GetField(fieldname, flag);
            return (T)field.GetValue(instance);
        }


//执行类
public void test(){
         a pw = new a();
    object ob = pw.GetPrivateField<object>("dic");
    //怎么转换成ConcurrentDictionary<string,b>类型
}

Answer 1

说清楚一点怎么转换。