C#将list转换为datatable

DataTable dt = new DataTable();
if (_list != null)
{
      //通过反射获取list中的字段 
   System.Reflection.PropertyInfo[] p = _list[0].GetType().GetProperties();
   foreach (System.Reflection.PropertyInfo pi in p)
    {
      dt.Columns.Add(pi.Name, System.Type.GetType(pi.PropertyType.ToString()));
    }
   for (int i = 0; i < _list.Count; i++)
   {
       IList TempList = new ArrayList();
        //将IList中的一条记录写入ArrayList
       foreach (System.Reflection.PropertyInfo pi in p)
       {
         object oo = pi.GetValue(_list[i], null);
         TempList.Add(oo);
       }
      object[] itm = new object[p.Length];
     for (int j = 0; j < TempList.Count; j++)
     {
       itm.SetValue(TempList[j], j);
     }
     dt.LoadDataRow(itm, true);
       }
}