把dataset对象转换成list集合方法

  public static List<T> GetList<T>(DataTable table) where T:new()
       {
           List<T> list = new List<T>();
           //
           T t = default(T);
           PropertyInfo[] propertypes = null;
           string tempName = string.Empty;
           try
           {
               foreach (DataRow row in table.Rows)
               {
                   //动态创建对象
                   t = Activator.CreateInstance<T>();
                   t =  new T();
                   propertypes = t.GetType().GetProperties();
                   foreach (PropertyInfo pro in propertypes)
                   {
                       tempName = pro.Name;
                       if (table.Columns.Contains(tempName))
                       {
                           object value = row[tempName];
                              if (value != null && value != DBNull.Value && row[tempName].ToString() != null &&
                                !row[tempName].ToString().Trim().Equals(""))
                           {
                               if (tempName.Trim().ToLower().Equals("lastmodify"))
                               {
                                   // pro.SetValue(t, ConvertHelper.ConvertToTimestamp(Convert.ToString(value)), null);
                               }
                               else
                               {
                                   if (pro.PropertyType == typeof(System.Char) || pro.PropertyType == typeof(System.Nullable<System.Char>))
                                   {
                                       pro.SetValue(t, Convert.ToChar(value), null);
                                   }
                                   else
                                   {
                                       pro.SetValue(t, value, null);
                                   }


                               }
                           }
                       }
                   }
                   list.Add(t);
               }
           }
           catch (Exception ex)
           {
               throw new Exception(ex.Message);
           }
           return list;
       }

1、  T t = default(T);  表示获得T类型

2、     t = Activator.CreateInstance<T>(); 根据类型创建对象

3、获得所有的属性

        propertypes = t.GetType().GetProperties();

4、 pro.SetValue(t, value, null);设置相应对象的属性值