Does generated WCF service client in Silverlight re-use the ChannelFactory? -

should 1 use generated wcf service client (e.g. myserviceclient) when invoking wcf service silverlight, or instead use channelfactory (e.g. channelfactory.create())?

other questions have asked question: wcf/silverlight: why use channelfactory instead of client?

however, responses it's best re-use channelfactory. if done directly, lose of other functionality of generated wcf service client (the async events, etc.)

is there no way generated wcf service client re-use channelfactory itself?

wcf fiasco

start_rant

even microsoft , wcf team know way channelfactory , channel , clientbase designed , way changed because of various performance issues real fiasco. fact disposing of proxy real mess enough know underneath extensibility of wcf, dealing inefficent, bloated , convoluted design. bad bad bad.

end_rant

ok, have looked @ documentation assume have not been able find answers - did not - since there no easy answer. here findings summarises these points (you cannot find below in ms documentation):

1) have channelfactory , ichannel. channelfactory knows how communicate transport , channel knows how interprete parameters wcf method calls , vice versa. ichannel 1 "implements" (or looks implementing) service interface while channelfactory has necessary abstractions communicating (including endpoint, security, ...).

2) clientbase nothing both channelfactory , ichannel cobbled together. obvious creating channelfactory once , creating channels on , on means more efficient, howevere guessed not easy because ...

3) channelfactory once opened, cannot changed. means if use username password connect wcf service , username password changes, need new one. might not seems big problem becomes big problem in asp net scenario.

4) channelfactory , ichannel in fact reuse same underlying communication channels closing channelfactory make ichannel invalid. causes confusion in clean code , decising responsiblity close connection.

5) see there no easy answer. if not have use username/password or change configuration @ runtime, create , cache channelfactory , create channels. in case channelfactory , ichannel more efficient clientbase.