高手请进，想获得一个不确定泛型List<T>的所有子集，该怎么实现？

Question

研究半天未果。List<xxxxx> abc = new List<xxxxx>;
OutPut(abc);---------------------void OutPut(object o)
{
object o;
System.Type t = o.GetType();
string tmp = t.ToString();
if (tmp.IndexOf("System.Collections.Generic.List") != -1)
{
   string t2Str = tmp.Substring(tmp.IndexOf("[") + 1, tmp.IndexOf("]") - tmp.IndexOf("[") - 1);   System.Type t2 = Type.GetType(t2Str);
   List<object> os = (List<object>)o;   foreach (object o2 in (System.Collections.ArrayList)o)
   {
     ......
   }
}
}
本来打算这么做，不过List<xxxxx>不能转换成List<object>,So ?

Answer 1

晕 那还不如直接用arraylist

Answer 2

List<object> os = (List<object>)o;foreach (object o2 in (System.Collections.ArrayList)o)
{
......
}
------------------》这样就可以吧
//List<object> os = (List<object>)o;foreach (object o2 in o)
{
......
}

Answer 3

foreach (object o2 in (System.Collections.ArrayList)o)
   {
     ......
   }搞错了，应该是 
 foreach (object o2 in os)
   {
     ......
   }
不过没什么影响，还是错的。

Answer 4

函数改成这样就可以了
void OutPut(IList o)

Answer 5

void OutPut(IList o)
        {
            System.Type t = o.GetType();
            string tmp = t.ToString();
            if (tmp.IndexOf("System.Collections.Generic.List") != -1)
            {
                string t2Str = tmp.Substring(tmp.IndexOf("[") + 1, tmp.IndexOf("]") - tmp.IndexOf("[") - 1);                System.Type t2 = Type.GetType(t2Str);                foreach (object o2 in o)
                {
...
                }
            }
        }

Answer 6

public static void OutPutObject(object o, int indent)
        {
            if (o != null)
            {
                Type t = o.GetType();
                Type[] gt = t.GetGenericArguments();                if (gt.Length == 0)
                {
                    System.Console.WriteLine("value[" + t.Name + "] = " + o.ToString());
                    System.Console.WriteLine("--------------------------------------------");                    foreach (PropertyInfo pi in t.GetProperties())
                    {
                        object o2 = pi.GetValue(o, null);
                        if (o2 != null)
                        {
                            System.Console.WriteLine(GetIndent(indent) + pi.Name + "[" + pi.PropertyType.Name + "] = " + o2.ToString());
                        }
                    }
                }
                else
                {
                    System.Type t2 = gt[0];                   
                    List<object> os = (List<object>)o;                    foreach (object o2 in os)
                    {
                        OutPutObject(o2, indent + 1);
                    }
                }
            }
            else
            {
                System.Console.WriteLine("null");
            }
        }

Answer 7

public static void OutPutObject(object o, int indent)
        {
            if (o != null)
            {
                Type t = o.GetType();
                Type[] gt = t.GetGenericArguments();                if (gt.Length == 0)
                {
                    System.Console.WriteLine("value[" + t.Name + "] = " + o.ToString());
                    System.Console.WriteLine("--------------------------------------------");                    foreach (PropertyInfo pi in t.GetProperties())
                    {
                        object o2 = pi.GetValue(o, null);
                        if (o2 != null)
                        {
                            System.Console.WriteLine(GetIndent(indent) + pi.Name + "[" + pi.PropertyType.Name + "] = " + o2.ToString());
                        }
                    }
                }
                else
                {
                    System.Type t2 = gt[0];                   
                    IList os = (IList)o;                    foreach (object o2 in os)
                    {
                        OutPutObject(o2, indent + 1);
                    }
                }
            }
            else
            {
                System.Console.WriteLine("null");
            }
        }这样也行，紫色阴影，3Q

Answer 8

问题解决了
我把代码贴出来供大家参考
public class TestManager
    {
        public static void OutPutObject(object o)
        {
            OutPutObject(o, 0);
        }        public static void OutPutObject(object o, int indent)
        {
            if (o != null)
            {
                Type t = o.GetType();
                System.Console.WriteLine(GetIndent(indent) + "value[" + t.Name + "] = " + o.ToString());
                System.Console.WriteLine(GetIndent(indent) + "--------------------------------------------");
                
                Type[] gt = t.GetGenericArguments();                if (gt.Length == 0)
                {
                    foreach (PropertyInfo pi in t.GetProperties())
                    {
                        object o2 = pi.GetValue(o, null);
                        if (o2 != null)
                        {
                            System.Console.WriteLine(GetIndent(indent) + pi.Name + "[" + pi.PropertyType.Name + "] = " + o2.ToString());
                        }
                    }
                }
                else
                {
                    IList os = (IList)o;
                    System.Console.WriteLine(GetIndent(indent) + "Count:" + os.Count);                    foreach (object o2 in os)
                    {
                        OutPutObject(o2, indent + 1);
                    }
                }
            }
            else
            {
                System.Console.WriteLine("null");
            }
        }        public static string GetIndent(int indent)
        {
            StringBuilder sb = new StringBuilder();
            for (int index = 0; index < indent; index++)
            {
                sb.Append("      ");
            }
            return sb.ToString();
        }
    }