I have a many-to-many relationship of products (p) and materials (m) and the products2materials table (p2m) as the many-to-many link.
I need to get
- all products that have materials assigned,
- all products with no materials assigned,
- and all materials with no products assigned.
Basically a union of what is there. However, since this will be a data filter, I need to filter out products and/or materials that do not match the search criteria (e.g. all products that start with "A", etc.).
How do I do this in LINQ-to-EF 4.1?
Many thanks!
From yours description it looks like you actually need:
Do you need it as a single IQueryable (if yes which fields do you need) or as 2 IQueryables?