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Bug Report T947251
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TcxBarEditItem - The "List index out of bounds" exception occurs when changing the DPI value while the in-place editor is focused

created 4 years ago

A DropDownEdit used as an TcxBarEditItem causes an EInvalidIndex when a DPI-Change occurs.

  1. Please run the attached test-case
  2. Drop down the shell combo box bar item
  3. While the drop down bar item is still focused, cause a DPI-Change (in my case, I pressed Win+Left to move the form to a monitor with different DPI settings)
  4. EInvalidImageIndex occurs with the following call stack:
Delphi
:76d79ab2 KERNELBASE.RaiseException + 0x62
System.Classes.TList.Get(5)
:00471d54 TList.Get + $1C
System.Classes.TList.Get(???)
Vcl.Controls.TWinControl.GetControl(???)
Vcl.Controls.TWinControl.ScaleControlsForDpi(168)
dxForms.TdxForm.ScaleControlsForDpi(168)
Vcl.Forms.TCustomForm.ScaleForPPIRect(168,???)
Vcl.Forms.TCustomForm.WMDpiChanged((736, (), 168, 168, (), $19FE34, 0))
dxForms.TdxForm.WMDPIChanged((736, 11010216, 1703476, 0, 168, 168, (), 65076, 25, (), 0, 0, ()))
Comments (1)
DevExpress Support Team 4 years ago

    Hello Sebastian,

    Thank you for sharing your sample project. It may take us some time to examine this scenario.

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    Answers approved by DevExpress Support

    created 4 years ago

    We have addressed the issue described in this ticket and will include a fix in our next maintenance update. To apply this solution before official release, request a hotfix by clicking the appropriate version link.

    Note: Hotfixes may be unavailable for betas/updates set for release within a week.

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