摘要： Overview Microsoft is excited to extend the developer community source code reference and debug capabilities against core Microsoft platform technologies. By gaining a better understanding of the platform code running beneath your application, developers will be able to code more innovative and secu 阅读全文

摘要： 通过SQL Server的位运算功能巧妙解决多选查询 项目中很多业务对象的数据表中都具有Status字段，有人使用int型保存Status，有人使用varchar型。无论使用int还是varchar，对于Status的多选查询都是不易应对的。举例，常规思维下对CustomerStatus的Enum设置如下： [Serializable] public enum CustomerStatus { New = 0, Active = 1, Overdue = 2, Suspended = 3, Closing = 4, Closed = 5}在数据库中以int形式存储了Status值。如果我在页面 阅读全文