c# - How do I select entries through an intermediary table relationship? -
this has obvious answer, drawing blank somehow. have 3 tables, let's called:
people addresses addressdetails
i using entity framework (so above models relationships set up). trying select data typical ef linq query (doesn't matter whether method or query syntax).
people , addresses many-to-many. addresses , addressdetails one-to-one(/zero). need select entries addressdetails correspond particular personid. know connection there since can select addresses personid = n, , each address has 1 addressdetails entry, how do properly?
i tried following:
var details = p in db.people p.id = n in p.addresses ad in a.details select ad;
visual studio highlights "details" in a.details , gives following:
'api.models.addresses' not contain definition 'api.models.details"...
i ef telling me doesn't see relationship. did verify one-to-one there. ideas? ef doesn't see because there no fk in addresses table? (the addresses pk details pk/fk).
you should able this:
var details = p in people p.id = n in p.addresses ad in a.details select ad;
fyi: reference linq 101 linq samples
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