Handle NullReferenceException in Foreign Key Classes (EF)

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Hi all,

I have a small problem. The thing is, how to handle a NullReferenceException when accessing foreign key classes, in other words, check if the foreign key instance is null before calling / using it. For example:

Mammal.Human.FirstName - Where Human will be null. But I don't want to perform a null check for each foreign key class. For example: Mammal.Dog.Age (now Dog could be null).

Many thanks in advance!
Kind regards,

Posted 13-Jun-12 23:03pm

Programm3r

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evaaggy · Answer 1 · 2012-06-14T03:18:00

Solution 1

I think there are two options. 1) if you have access to the classes code then you might want to return a string that suggests a null, e.g. "NOTFOUND".
2) You really don't have any other option other than to do a null check.

Posted 14-Jun-12 3:18am

evaaggy