Bug Report T666502
Visible to All Users

Static Code Analysis - The "Possible System.NullReferenceException" diagnostic should take outer "not's" into account

created 7 years ago

See following examples:

Visual Basic
Public Class Class1 Public Shared Function Foo(text As String) As Boolean 'No CRR0027 Return (text IsNot Nothing) AndAlso (text.Length > 0) End Function Public Shared Function Bar1(text As String) As Boolean 'CRR0027 Return Not (text Is Nothing) AndAlso (text.Length > 0) End Function Public Shared Function Bar2(text As String) As Boolean 'CRR0027 Return Not String.IsNullOrWhiteSpace(text) AndAlso (text.Length > 0) End Function Public Shared Function Bar3(text As String) As Boolean 'CRR0027 Return Not String.IsNullOrEmpty(text) AndAlso (text.Length > 0) End Function End Class
Comments (1)
DevExpress Support Team 7 years ago

    Hello Robert,

    Thank you for providing the code sample.
    I have reproduced this issue on my side.
    So, we will research it and notify you as soon as we have any results.

    Answers approved by DevExpress Support

    created 6 years ago

    We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

    Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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