public static string SortParam<T>(T t)

        {

            string tStr = string.Empty;

            if (t == null)

            {

                return string.Empty;

            }

            System.Reflection.PropertyInfo[] properties = t.GetType().GetProperties(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public);

            if (properties.Length <= 0)

            {

                return string.Empty;

            }

            foreach (System.Reflection.PropertyInfo item in properties.OrderBy(m => m.Name))//排序后组成字符串

            {

                string name = item.Name;//字段名称

                object value = item.GetValue(t, null);//值

                if (item.PropertyType.IsValueType || item.PropertyType.Name.StartsWith("String"))

                {

                    if (value != null)

                        tStr += (string.Format("{0}{1}", name, value));

                }

                else

                {

                    SortParam(value);//集合字段递归

                }

            }

            //tStr = tStr.OrderBy(m => m).ToList();

            return tStr;

        }

public IList<T> GetData(SqlDataReader reader)

    {

        IList<T> list = new List<T>();

        Type type = typeof(T);

        PropertyInfo[] properties = type.GetProperties();  

        while (reader.Read())

        {

            T t = Activator.CreateInstance<T>();

            for (int i = 0; i < properties.Length; i++)

            {

                properties[i].SetValue(t, reader[i + 1], null);  

            }  

            list.Add(t);

        }  

        return list;

    }