How to raise an event in VB.NET when a row is added to an SQL Server table -

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not sure possible. currently, detect row has been added table in sql server, use timer query table. there way sql server (presumably via ado.net sqlconnection object) can raise event in visual basic when row added, don't need keep polling/querying database?

if using sql server 2005+, can use service broker , query notifications. the setup bit complicated. in short use sqldependency class.
dependency first has created 

system.data.sqlclient.sqldependency.start(cs)

and can used

dim cmd new sqlcommand(sqlquery, cn) cmd.commandtext = "select field dbo.mytable"  sqld = new sqldependency(cmd)   cn.open() dim tbl new datatable tbl.load(cmd.executereader)  addhandler sqld.onchange, addressof tablechanged

the dependency should not used lot of clients , there strict rules (creating query notification) how query should written.


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