error in LINQ query "Object reference not set to an instance of an object"

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Posted on by Community Member

this query gives error:

 Contact party =
                       (from c in myContext.cav_configurationSet
                        join p in myContext.ContactSet.DefaultIfEmpty()
                        on c.mm_name equals p.FullName
                        where c.mm_name == "TransactionPerformedBy" &&
                        c.StateCode == cav_configurationState.Active
                        select p).FirstOrDefault().ToEntity<Contact>();

I have checked it is due to there is no record or match for c.mm_name. please tell me how to fix it ?

thanks

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Haansi 1,433 Moderator on at

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Not having data do not through the error. Error probably is happening when you are using methods on null. Consider checking null before doing other operations.

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