BuyLog In
Bug Report Q495313
Visible to All Users

Clicking OK within a filter drop-down window using the mouse results in an AV in certain cases

created 12 years ago

Hi all,
Sometimes I have an access violation on the cxPivotGrid, when I change the current filter of a column, using the built in filter popup of the column.
This is apparently due to the fact that when the popup is closed the filter is applied, and
in the procedure TcxCustomPivotGrid.DataChanged all the groupItems are freed.
But when the cursor is reverted to the default cursor, after the computation of the filtered data, a TcxPivotGridViewInfo.CalculateHitTest is invoked on a TcxPivotGridViewInfo instance which points to freed groupItems.
This is the call stack of the error:
|00EA6D33|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridViewDataItem |GetField |10009[1] |
|0040530C|testapp.exe|system.pas |TObject |InheritsFrom |9231[1] |
|00405266|testapp.exe|system.pas | |_IsClass |9077[1] |
|00EB2B7F|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridHeaderCellViewInfo |GetHitTest |15494[9] |
|00EAF8D7|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridCells |CalculateHitTest |14169[4] |
|00EAF8A8|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridCells |CalculateHitTest |14165[0] |
|00EB75FD|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridViewInfo |CalculateHitTest |17294[3] |
|00EA07EC|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridHitTest |Recalculate |7080[3] |
|00EA07B8|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridHitTest |Recalculate |7077[0] |
|00EA093C|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridHitTest |SetHitPoint |7137[2] |
|00EA091C|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridHitTest |SetHitPoint |7135[0] |
|00E9BFEC|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridController |GetCursor |5230[2] |
|00E9BFBC|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridController |GetCursor |5228[0] |
|00EA9787|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |GetCurrentCursor |11330[3] |
|0087F69B|testapp.exe|cxControls.pas |TcxControl |WMSetCursor |4673[5] |
|0087F64C|testapp.exe|cxControls.pas |TcxControl |WMSetCursor |4668[0] |
|00EAB669|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |WMSetCursor |12240[8] |
|004E902B|testapp.exe|Controls.pas |TControl |WndProc |5146[83] |
|004E8D70|testapp.exe|Controls.pas |TControl |WndProc |5063[0] |
|004ED077|testapp.exe|Controls.pas |TWinControl |WndProc |7304[111]|
|004ECB7C|testapp.exe|Controls.pas |TWinControl |WndProc |7193[0] |
|0087FDF2|testapp.exe|cxControls.pas |TcxControl |WndProc |4905[21] |
|004EC7A0|testapp.exe|Controls.pas |TWinControl |MainWndProc |7073[3] |
|00436FE8|testapp.exe|Classes.pas | |StdWndProc |11583[8] |
|77F3CEE4|USER32.dll | | |SendMessageA | |
|77F3CEA0|USER32.dll | | |SendMessageA | |
|004DCBD4|testapp.exe|Forms.pas |TScreen |SetCursor |6794[14] |
|004DCB5C|testapp.exe|Forms.pas |TScreen |SetCursor |6780[0] |
|0087B18E|testapp.exe|cxControls.pas | |HideHourglassCursor |2874[5] |
|0087B168|testapp.exe|cxControls.pas | |HideHourglassCursor |2870[1] |
|00EA964B|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |HideHourglassCursor |11285[2] |
|00EA9638|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |HideHourglassCursor |11283[0] |
|00EB08D6|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridDataBuilder |DataChanged |14618[22]|
|00EA8D81|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |CheckChanges |11071[9] |
|00EA8CF4|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |CheckChanges |11062[0] |
|00EA9348|testapp.exe|cxCustomPivotGrid.pas |TcxCustomPivotGrid |DataChanged |11198[4] |
|00EAC69F|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridField |DataChanged |12614[3] |
|00EAC9C4|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridField |DoFilterChanged |12695[1] |
|00EAEB91|testapp.exe|cxCustomPivotGrid.pas |TcxPivotGridField |FilterChanged |13673[1] |
Can you help me?
Thank you in advance!

Comments (3)
DevExpress Support Team 12 years ago

    Hello,
    Thank you for your report. Would you please provide us with a small sample project so we can reproduce the problem on our side?

    LM LM
    Lorenzo Mentaschi 12 years ago

      Hello,
      here a little sample application to reproduce the problem. In a memo inside the application there are the explanations about it. I would add that changing the method TcxCustomPivotGrid.GetCurrentCursor so that it returns always crDefault, without calling GetHitTest, the problem disappears.
      Cheers

      DevExpress Support Team 12 years ago

        Hello,
        Thank you for your demo. I have reproduced the AV and forwarded this ticket to our developers for research.

        Sign in to comment on this post

        Answers approved by DevExpress Support

        created 12 years ago (modified 12 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.

          Comments (2)
          LM LM
          Lorenzo Mentaschi 12 years ago

            Thank you! We will try the hotfix

            DevExpress Support Team 12 years ago

              You are welcome to post your feedback here.

              Sign in to comment on this post

              Disclaimer: The information provided on DevExpress.com and affiliated web properties (including the DevExpress Support Center) is provided "as is" without warranty of any kind. Developer Express Inc disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. Please refer to the DevExpress.com Website Terms of Use for more information in this regard.

              Confidential Information: Developer Express Inc does not wish to receive, will not act to procure, nor will it solicit, confidential or proprietary materials and information from you through the DevExpress Support Center or its web properties. Any and all materials or information divulged during chats, email communications, online discussions, Support Center tickets, or made available to Developer Express Inc in any manner will be deemed NOT to be confidential by Developer Express Inc. Please refer to the DevExpress.com Website Terms of Use for more information in this regard.