Bug Report T627293
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Static Code Analysis - The "Possible System.NullReferenceException" diagnostic should take String.IsNullOrEmpty and String.IsNullOrWhitespace into account

created 7 years ago

Please see following examples:

Visual Basic
Public Class Class1 Public Shared Function WithEmpty1(text As String) As Integer If Not String.IsNullOrEmpty(text) Then 'CRR0027 Return text.Length End If Return 0 End Function Public Shared Function WithEmpty2(text As String) As Integer If String.IsNullOrEmpty(text) Then Return 0 'No CRR0027 Return text.Length End Function Public Shared Function WithWhiteSpace1(text As String) As Integer If Not String.IsNullOrWhiteSpace(text) Then 'CRR0027 Return text.Length End If Return 0 End Function Public Shared Function WithWhiteSpace2(text As String) As Integer If String.IsNullOrWhiteSpace(text) Then Return 0 'CRR0027 Return text.Length End Function End Class
Comments (1)
DevExpress Support Team 7 years ago

    Robert,

    Thank you for the report. I agree with you that IsNullOrEmpty and IsNullOrWhiteSpace can be taken into account when evaluating possible null reference diagnostics.

    Answers approved by DevExpress Support

    created 7 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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