感谢网上的一位朋友

 1     /// <summary>
 2  60         /// 将集合类转换成DataTable
 3  61         /// </summary>
 4  62         /// <param name="list">集合</param>
 5  63         /// <returns></returns>
 6  64         public static DataTable ToDataTable(IList list)
 7  65         {
 8  66             DataTable result = new DataTable();
 9  67             if (list.Count > 0)
10  68             {
11  69                 PRopertyInfo[] propertys = list[0].GetType().GetProperties();
12  70                 foreach (PropertyInfo pi in propertys)
13  71                 {
14  72                     result.Columns.Add(pi.Name, pi.PropertyType);
15  73                 }
16  74 
17  75                 for (int i = 0; i < list.Count; i++)
18  76                 {
19  77                     ArrayList tempList = new ArrayList();
20  78                     foreach (PropertyInfo pi in propertys)
21  79                     {
22  80                         object obj = pi.GetValue(list[i], null);
23  81                         tempList.Add(obj);
24  82                     }
25  83                     object[] array = tempList.ToArray();
26  84                     result.LoadDataRow(array, true);
27  85                 }
28  86             }
29  87             return result;
30  88         }