Type对象获得泛型类型的两个扩展方法

来源：互联网发布：deform软件编辑：程序博客网时间：2024/05/18 01:21

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 lt = new List();

  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:      }

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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。