Open the web.config file in application, add sample db connection in connectionStrings section as Mentioned Below: < connectionStrings > < add name = "yourconnectinstringName" connectionString = "Data Source= DatabaseServerName; Integrated Security=true;Initial Catalog= YourDatabaseName; uid=YourUserName; Password=yourpassword; " providerName = "System.Data.SqlClient" /> </ connectionStrings > Declaring connectionStrings in web.config file: < connectionStrings > < add name = "dbcon" connectionString = "Data Source=Peace4;Integrated Security=true;Initial Catalog=MyDB" providerName = "System.Data.SqlClient" /> </ connectionStrings > Now, write the code to...