Cannot open database "DataBase" requested by the login. When Site is deployed

[Jambo Jet]

<connectionStrings>
     <add name="Tenders" connectionString="Data Source=CV\SQLEXPRESS;Initial Catalog=Tenders; user id=sa; password=orc ;Integrated Security=True" providerName="System.Data.SqlClient" />
     <add name="TenderConnectionString" connectionString="Data Source=CV\SQLEXPRESS;Initial Catalog=Tender;user id=sa; password=orc; Integrated Security=True; Persist Security Info=True;User ID=sa;MultipleActiveResultSets=False;Microsoft SQL Server Management Studio&quot;"
         providerName="System.Data.SqlClient" />
     <add name="TenderConnectionString2" connectionString="Data Source=CV\SQLEXPRESS;Initial Catalog=Tender;user id=sa; password=orc;Integrated Security=True; Persist Security Info=True;User ID=sa;MultipleActiveResultSets=False;Microsoft SQL Server Management Studio&quot;"
         providerName="System.Data.SqlClient" />
     <add name="TenderConnectionString3" connectionString="Data Source=CV\SQLEXPRESS;Initial Catalog=Tender;user id=sa; password=orc;Integrated Security=True;Persist Security Info=True;User ID=sa;MultipleActiveResultSets=False;Microsoft SQL Server Management Studio&quot;"
         providerName="System.Data.SqlClient" />
 </connectionStrings>
	<system.web>

[khurramzeb]

I think you have to mention the port number of DatabAse server in the connection string as well
like CV\SQLEXPRESS,p ortnumber