Question

When I use the query

var NewMatchs = (from x in entity.matches select x).LastOrDefault();

I get error like this

LINQ to Entities does not recognize the method ‘SocialSports.Models.match
LastOrDefaultmatch’
method, and this method cannot be
translated into a store expression.

What’s wrong in my code ???

Thanks…

Answer 1

You can’t use LastOrDefault to query EF entities, as it cannot be translated to T-SQL.

Not all the LINQ methods are supported by Linq to Entities.

List of ALL supported / not supported methods:

http://msdn.microsoft.com/en-us/library/bb738550.aspx

You could try

var NewMatchs = (from x in entity.matches select x).ToList().LastOrDefault();

but this will load ALL matches from the db and perform Linq to objects.

Or try sorting and call FirstOrDefault.