website in asp.net..

Try googling first before posting.

Here for your reference:
www.connectionstrings.com[^][^]

Regards,
Eduard

Its a Quite Common question here and already answered many time.
Have a look there[^]
where I suggested to navigate http://www.sqlstrings.com/[^]
In addition you can find plenty of question with solutions while CP searching.
Have a look there-[Database Connection in asp.net][^]

by using code u can connect-

<<br />
<%@ Import Namespace="System.Data.OleDb" %><br />
<script  runat="server"><br />
sub Page_Load<br />
dim dbconn,sql,dbcomm,dbread<br />
dbconn=New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;<br />
data source=" & server.mappath("northwind.mdb"))<br />
dbconn.Open()<br />
sql="SELECT * FROM customers"<br />
dbcomm=New OleDbCommand(sql,dbconn)<br />
dbread=dbcomm.ExecuteReader()<br />
end sub<br />
</script><br />
>

You can begin with ADO.NET. :-)

web config file because use globally access a connection

<appsetting>
<add key="conn" value="dataprovider;databasename;username;password">
</add></appsetting>
dim con as sqlconnection
con= new sqlconnection (configurationmanager.appsetting("conn")).tostring
dim sql as string="select * from sample"
cmd=new sqlcommand
with cmd
.connection=conn
.command type=text
.coomandtext=sql
.selectcommand
end with