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linq to sql not between

Posted on 2013-01-31
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Last Modified: 2013-01-31
I have the following where clausing in sql, how do i write the comparable in linq?

where CONVERT(DATE, GETDATE()) not between CheckInDate and  CheckOutDate

I'm trying to query the non active records in my table, which means today's date will not fall in between the check in and check out dates.

Thanks
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Question by:michael1174
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7 Comments
 
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Expert Comment

by:sedgwick
ID: 38838930
I assumed CheckOutDate and CheckInDate are properties of a data structure (list/array/enumerable etc) the where applies to:

.Where(n=>(DateTime.Now >  n.CheckOutDate) && (DateTime.Now < n.CheckInDate))

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Author Comment

by:michael1174
ID: 38838945
Hi thanks I already have that for active records, I need to get NOT active records which is a NOT between.
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Accepted Solution

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sedgwick earned 2000 total points
ID: 38838959
sorry:

.Where(n=>(DateTime.Now >  n.CheckOutDate) || (DateTime.Now < n.CheckInDate))

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Author Comment

by:michael1174
ID: 38839034
one more question, it worked for one of my queries, but my other query, which first i am getting it through a SP:

var query = (get from sp).toList();

   return query.Where(m => (DateTime.Today >= m.StartDate) &&
                        (m.EndDate <= DateTime.Today));

it doesn't seem to be filtering out the records, see any problems?
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LVL 42

Expert Comment

by:sedgwick
ID: 38839231
this query returns all records between StartDate and EndDate (exclusive compare) , is that what u want?

btw, you used DateTime.Today and not DateTime.Now to compare which returns the current date with time  equals to 12:00:00 AM.

for example:

DateTime.Today -> {1/31/2013 12:00:00 AM}
DateTime.Now -> {1/31/2013 14:45:00 PM}
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Author Comment

by:michael1174
ID: 38839307
yes, that is what I want but for some reason my query result is wrong.  It doesn't seem like the filter was applied. I'm first calling a sp, and then applying that where.  The method returns a ienumerable and the result is bound to a grid.

thanks for explaination on the date today vs date now.
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LVL 42

Expert Comment

by:sedgwick
ID: 38839313
well the query is simple and straight forward.
debug the StartDate and EndDate and see if it falls within the query range.
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