Entity framework 3.5, mapping stored procedure results to custom entity

Question

I tried to follow this link to map stored procedures to Custom Entities, but when I did so I could no open the EDMX file in the VS 2008 designer. so looks like it is causing som

Answer 1

I just successfully solved this problem I was having after following the same walkthrough link you provided. (I suppose this answer is for anyone who finds this unanswered question in their search.)

My problem was that I was not opening the ssdl file correctly. You MUST open it by right clicking the edmx file in the solutions window --> "open with" --> "xml (text) editor" or else the file will not be built properly after making changes, and you won't be able to see the graphical representation of your model. As long as you complete his tutorial editing ONLY the ssdl section of the file, it will work. Just be careful. Opening the ssdl portion of this file in external programs such as Notepad ++ WILL NOT WORK.

Hope that helps someone. My problem is now passing SelectedItem property of a listbox displaying an entity query result as a parameter to my makeshift st