enter image description hereI have been created a data base by LINQ to sql classes .. the problem is when I make connection it in any project , the associations ( or the relations) between tables don't appear !! could the problem be in the data base it self?
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Do you have foreign keys that relate the tables? – Omid CompSCI Sep 23 '16 at 17:00
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Draw your ERD!!!!! – Omid CompSCI Sep 23 '16 at 17:00
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I added a pic to the data base – D.SH Sep 23 '16 at 17:54