Question

I am working on entity framework project, i have to apply Or condition in dbContext.Where
I have tried this but its giving me error “Operator || cannot be applied to operand of types lambda expressions”

return dataContext.Friends
              .Where((r => r.ToUserId == touserid && r.FromUserId == fromuserid) 
                  || (r => r.ToUserId == fromuserid&& r.FromUserId == touserid ))
              .ToList();

I also tried using && instead of || but its giving me same error for &&,how can i apply Or condition for this senario?
I have tried without brackets as well

Answer 1

You need to do it like this:

return dataContext.Friends.Where(r => (r.ToUserId == touserid && r.FromUserId == fromuserid) || (r.ToUserId == fromuserid && r.FromUserId == touserid))
                          .ToList();

The only difference is that I deleted the second r => and fixed the parenthesis.