How to create a Lookup in a related table in SQl Server 2016

Question

Dear Experts;

 

 

Help me with a way how to create a lookup in a related table like below:

 

Customer Table

 -CustomerID (pk)

- Customer Name

- Address

- City

- Country

 

Invoice Table

 -Invoice ID

-Customer ID (fk)

-Sales man

- Ship Date

 

 I'm currently using Visual Studio 2016 with C# programming laguange under windows form application.

 

I want to use also on the datagridview either through direct binding or code 

 

 

Regards

 

Chris