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Bug Report T296254
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NullReferenceException is thrown on scrolling a document with the 'PageDown' key

created 9 years ago

Hello,

The attached solution reproduces a problem that we are seeing in our WPF application using the RichEditControl. If you simply run the application, select the "Generate Doc" button, click within the document, and then hold the Page Down button you should receive a null reference exception from DevExpress.RichEdit.v15.1.Core very quickly. This exception occurs every time for me within about two seconds. A colleague confirmed the same behavior on his computer.

The code is simply creating a new document and populating it with several tables. At this point I am not sure if the specific content of the document or the size of the window factor in to the situation, but I have seen some behavior suggesting that they might.

Thanks for your help,
Adam

Comments (1)
DevExpress Support Team 9 years ago

    Hello,
    I have reproduced the behavior and passed this ticket to our developers for further research. Please bear with us.
    We will notify you as soon as we make any progress.

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    Answers approved by DevExpress Support

    created 9 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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