c# - Lightswitch 2012 Update 2. Cannot edit data -


i had functioning lightswitch application built vs2012rtm. interacting ria service backend. recently, ria service assembly 'upgraded' use dbcontext instead of objectcontext, breaking lightswitch application.

so, created new datasource in lightswitch source sql server, , switched of screens on new datasource. then, did 'upgrade project' in visual studio update 2. now, none of screens editable. nothing internal permissions changed, datasource , login (which has rights needs) , version of lightswitch.

any clues?

usually, screens can't edited caused underlying data appearing read-only lightswitch, or tables don't have key property has unique value each record in table.

what happens if create basic table, bound 1 of tables in data source?


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