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Editorial Team
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Asked: 2026-06-02T15:35:17+00:00

I have a method which gets the whole data from a View inside my

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I have a method which gets the whole data from a View inside my database:

public IQueryable<vw_FullWebIgnoringApprovalStatus> GetAllFullWebIgnoringApprovalStatus() 
{
    IQueryable<vw_FullWebIgnoringApprovalStatus> query = 
        Context.vw_FullWebIgnoringApprovalStatus;

    return query;
}

When I execute the following method, it immediately executes the query which it shouldn’t:

var model = _repo.GetAllFullWebIgnoringApprovalStatus()
    .Where(x =>
        (!reid.HasValue && !destid.HasValue && !coid.HasValue) ||
        (reid.HasValue && x.Reid == reid.Value) ||
        (destid.HasValue && x.Destid == destid.Value) ||
        (coid.HasValue && x.Coid == coid.Value)
    );

It should have lazy loaded the query and it didn’t. Is it related to view? I am using EntityFramework.4.3.1.

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1 Answer

  1. Editorial Team

    I don’t believe that HasValue is recognized by LINQ to Entities beause there is no way to convert that into SQL. Therefore I think in this case, L2E has to execute the query before it can evaluate HasValue. I haven’t seen this particular behavior before. I thk you need to find another way to express your nullability test. And i’d be interested to see the SQL.

    Here’s one interesting idea:
    http://social.msdn.microsoft.com/Forums/en/csharplanguage/thread/56484ed7-9664-44f4-84a0-69da3901c817

    There are all kind of weird behaviors with LINQ around nullables so you have to really pay attention to the results -> http://msdn.microsoft.com/en-us/library/bb738687.aspx

    hth
    julie

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