c# - Access to the return value from the database by linq -

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i need send value database code

var concerthallid = _concert in db.tbl_content_context     join _concerthall in db.tbl_concert_concerthall on _concert.contextid equals _concerthall.contextid     _concert.encontextid == concertid     select _concerthall.concerthallid;

how set concerthallid variable?

your query return iqueryable, if return 1 row or need first 1 use after code:

var id = concerthallid.firstordefault();

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