R# parser error or potential code error?

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qw12017-03-10 11:11:38

IntelliJ IDEA

qw1, 2017-03-10 11:11:38

Do I understand correctly that the construction <expression> is <type name> cannot be true if <expression> = null?

Then why does the "Possible NullReferenceException" warning occur:

How to rewrite correctly so that the warning disappears?

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