I have installed samba POS on my system and I want to use Sql Server Connectivity. I also tried to change the local settings and in that connectionstring but it is not allowing me to connect with the database on sql server it says Disconnected.

SambaPOS is an Open Source Touch Screen POS project for Restaurant. You can use it free without limits. From this website you can download program, read documentaiton, ask questions, contact with other SambaPOS users or contribute to development.