Type对象获得泛型类型的两个扩展方法

1、定义扩展对象

   1:  public static class ExtendMethod 
   2:  {
   3:   
   4:      public static Type GetSingleGenericType(this Type t) 
   5:      {
   6:          Type[] ts = GetGenericType(t);
   7:          if (ts == null) return null;
   8:          return ts[0];
   9:      }
  10:   
  11:      public static Type[] GetGenericType(this Type t) 
  12:      {
  13:          if (!t.IsGenericType) return null;
  14:          List<Type> lt = new List<Type>();
  15:          int begin = t.FullName.IndexOf('[');
  16:          int end = t.FullName.LastIndexOf(']');
  17:          string str = t.FullName.Substring(begin + 1, end - begin - 1);
  18:          while(true)
  19:          {
  20:              begin = str.IndexOf('[');
  21:              if (begin < 0) break;
  22:              lt.Add(Type.GetType(str.Substring(begin + 1, str.IndexOf(',') - 1)));
  23:              str = str.Remove(0, str.IndexOf(']') + 1);
  24:              str = str.TrimStart(',');
  25:          }
  26:          return lt.ToArray();
  27:      }

2、应用示例。

   1:  Type type = typeof(Dictionary<int, string>);
   2:  Type[] tS = type.GetGenericType();

这时tS中分别的System.Int32和System.String的Type对象。

posted @ 2011-04-11 16:46  文明的天空  阅读(207)  评论(0编辑  收藏  举报