var
query
=
from
a
in
AppDomain
.
CurrentDomain
.
GetAssemblies
(
)
from
t
in
a
.
GetTypes
(
)
where
t
.
IsAbstract
&&
!
t
.
IsSealed
// exclude static classes
&&
!
t
.
GetMethods
(
)
.
Any
(
m
=>
m
.
IsAbstract
)
select
t
;