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