c# - Entity Framework Core: The multi-part identifier could not be bound -


we using .net core application (meanwhile running on localhost) , sql database running on sql server receive data from. in following method called inside controller using entity framework core query data in sql database:

    public actionresult inspectiondetails(string inspectionid, string lang)     {         // load checks inspection         var inspectionchecks = (from ic in _context.inspectedchecks.where(x => x.inspectionid.tostring() == inspectionid)                                 cp in _context.checkpoints.where(x => x.categoryid == ic.categoryid && x.checkid == ic.checkid)                                 tchecks in _context.translations.where(x => x.translationkey == cp.title && x.lang.tolower() == lang.tolower()).defaultifempty()                                 tchecksfallback in _context.translations.where(x => x.translationkey == cp.title && x.lang.tolower() == "en").defaultifempty()                                 select new inspectedchecks2                                 {                                     id = ic.id,                                     checkdate = ic.checkdate,                                     category = ic.categoryid.tostring(),                                     check = tchecks.textvalue ?? tchecksfallback.textvalue,                                     checkinguser = ic.checkinguser,                                     result = ic.result,                                     passed = ic.passed,                                     inspectionid = ic.inspectionid,                                     tolerancevalue = ic.tolerancevalue,                                     images = null,                                     unit = ic.unit                                 }).tolist();          return content(jsonconvert.serializeobject(inspectionchecks));     }

if inspectiondetails method called following exception thrown:

system.data.sqlclient.sqlexception: "the multi-part identifier "x0.title" not bound. multi-part identifier "x0.title" not bound."

further infromation: "cp" contains disired values, works fine till there.

what tried far:

  • run same query directly on sql database --> success
  • run 2 querys in inspectiondetails method (first query: set var value of "cp", second query: above, except using new var insted of "cp") --> no success

anyone had similar issue or knows how fix it?

thanks in advance


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