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Bug Report T927548
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cxLookupComboBox - The editor incorrectly highlights non-ASCII characters in its edit box when an incremental filter is active if the Properties.IncrementalFiltering property is True and the Properties.DropDownListStyle property is lsFixedList

created 5 years ago

Hi,

I use TcxLookupComboBox with option: IncrementalFilteringOptions = [ifoUseContainsOperator]
My dataset contain words in any case. First word in uppercase. In example I use:
WINDOW
Winter
Winner
When press "i", I view all words. Then I press "n" and selection set to "WI", it's not correctly search and selection.
Can you help me with this problem.

Thanks for any help.

Comments (2)
DevExpress Support Team 5 years ago

    Hello,

    I tried to replicate the issue with the latest version of our controls (v20.1.4), but failed:

    1. You example contains four Items (not three) in the LookupComboBox;
    2. <<When press "i", I view all words.>>
      When I press "i", I see only 3 of 4 Items in the dropdown window ("WINDOW", "Winter" and "Winner");
    3. <<Then I press "n" and selection set to "WI", it's not correctly search and selection.>>
      Then I press the "n" key and see that "IN" characters are selected in the editor and the "WINDOWS" Item is selected in the dropdown window.

    I've attached a video that demonstrates my actions and the behavior I see. Please take a look at it and try to replicate the issue on your side with v20.1.4.
    We will wait for your response with results.

    dxVideo

    P P
    PAS 5 years ago

      Hello,

      I install new version DevExpress VCL 20.1.4 on my computer, problem is solved.
      Because I use 19.1.2 version, I find solution for my problem - in cxTextEdit.pas in

      Delphi
      function TcxCustomTextEdit.PopulateFromList(var AFindText: string): Boolean;

      I replace string

      Delphi
      SelStart := Pos(AFindSubstr, AFindText) - 1;

      to

      Delphi
      SelStart := Pos(AnsiUpperCase(AFindSubstr), AnsiUpperCase(AFindText)) - 1;

      In version 20.1.4 you use UpperCase, but this function is not correctly worked for russian charset.

      Thanks for help.

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      Answers approved by DevExpress Support

      created 5 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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