An item with the same key has already been added when trying to recover my list using Linq (SPMetal)
I have a problem with my application SharePoint. The problem is that I added a List in my SharePoint site (directly in SharePoint), then I used SPMetal LINQ to generate a File in which I can recover ...
I'm trying to return related data via External Content Types. I was wondering which is better to use, CAML queries or LINQ to SharePoint? I'm fine with writing CAML queries besides the relating part ...