The SQL Server Service Broker for the current database is not enabled, and as a result query notifications are not supported.

当Insus.NET尝试解决此问题《When using SqlDependency without providing an options value, SqlDependency.Start() must be called prior to execution of a command added to the SqlDependency instance.》http://www.cnblogs.com/insus/p/5622792.html 时，

又出现另外一个警示：

 
解决方法是，Enable Service Broker on the database：

 

ALTER DATABASE [DataBase Name] SET ENABLE_BROKER WITH ROLLBACK IMMEDIATE

Source Code