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GeneralRe: Basic Polymorphism Problem Pin
DaveyM694-Oct-12 22:35
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AnswerRe: Basic Polymorphism Problem Pin
AmbiguousName4-Oct-12 22:45
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GeneralRe: Basic Polymorphism Problem Pin
DaveyM694-Oct-12 23:18
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AnswerRe: Basic Polymorphism Problem Pin
BobJanova5-Oct-12 1:52
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GeneralRe: Basic Polymorphism Problem Pin
DaveyM695-Oct-12 2:19
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GeneralRe: Basic Polymorphism Problem Pin
BobJanova5-Oct-12 4:04
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QuestionC# linq group by Pin
rachel_m4-Oct-12 18:43
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AnswerRe: C# linq group by Pin
OriginalGriff5-Oct-12 0:19
mveOriginalGriff5-Oct-12 0:19 
Without your database data it is not possible to be specific, but I would suspect that there are no rows which match your where condition.
As a result, FirstOrDefault will return a null, and you would get the error you describe.
Ideological Purity is no substitute for being able to stick your thumb down a pipe to stop the water

GeneralRe: C# linq group by Pin
rachel_m5-Oct-12 3:48
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GeneralRe: C# linq group by Pin
OriginalGriff5-Oct-12 4:29
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QuestionCrystal Reports : Database Login Prompt Issue Pin
Quam Chang4-Oct-12 17:36
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QuestionAggregate data into 5 min interval Pin
bad_kid4-Oct-12 12:59
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QuestionC# linq Pin
rachel_m4-Oct-12 10:36
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Question.exe Reference Problem - maybe Pin
dirsow4-Oct-12 8:52
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AnswerRe: .exe Reference Problem - maybe Pin
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GeneralRe: .exe Reference Problem - maybe Pin
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GeneralRe: .exe Reference Problem - maybe Pin
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GeneralRe: .exe Reference Problem - maybe Pin
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AnswerRe: .exe Reference Problem - maybe Pin
Bernhard Hiller4-Oct-12 22:00
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Questionhow to setting Four tier application in my application? Pin
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AnswerRe: how to setting Four tier application in my application? Pin
Dave Kreskowiak4-Oct-12 7:45
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QuestionRe: how to setting Four tier application in my application? Pin
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AnswerRe: how to setting Four tier application in my application? Pin
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Questionsqldatabaseconnectivity Pin
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