my question is very similar to this one
I have three tables which are in a many to many relationship. I have to build a matrix that will give the possibility to set the between table. In contrast with the other question, I don't have the Sales values yet, but I need to build the same grid format.
I'm not sure about how to write the LINQ query and the one in the other article did not work for my purpose.
Thank you for your help,