Projecting into KeyValuePair via EF / Linq

Question

I\'m trying to load a list of KeyValuePairs from an EF / Linq query like this:

return (from o in context.myTable 
select new KeyValuePair

        

Answer 1

There is also alternative, when you want to store multiple values for one key exists something what is called Lookup.

Represents a collection of keys each mapped to one or more values.

Here you have some official documentations.

More over lookup seems to be much faster than Dictionary < TKey, List < TValue > >.