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Auto-Completion Edit Control

, 16 Jul 2001
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An edit control that provides auto-completion functionality for small data sets.
  • Download demo project - 19 Kb
  • Download source - 4 Kb

    This article describes a class (CACEditCtrl) for an Auto-Completion Edit Control, which can be used small data sets, such as most-recently-used account numbers, etc.

    It works by iterating over a collection of STL strings and tries to find a matching beginning-substring in the entry. It is not the most the most effecient way of doing it, but it works well for small data sets.

    The two functions of interest are:

    • void AddACEntry( LPCTSTR cpEntry )
    • void DisableAC( bool bDisable = true )

    The AddACEntry(...) function is used to add a string to the control's collection of strings. No duplicate checking is done. Why? Because this control acts as a container for data, not a manager of data.

    The DisableAC(...) function allows you to turn the Auto-Completion feature on or off.

    In the demo image above, the numbered dialogs show the operation of the control as 3 characters are typed into it :"T", "h", and "a" as shown below:

    1. No characters typed
    2. A "T" was typed into the control, and it auto-completed with its first match
    3. A "h" was typed into the control, ditto above
    4. An "a" was typed into the control, and there were no matches to auto-complete for

    Conditions of use are detailed in the header and source file(s).

    Feel free to contact me if there are any questions. Have fun.

  • License

    This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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    About the Author

    James R. Twine
    President JRTwine Software, LLC
    United States United States
    Programming since the age of 10, started professionally at the age of 17. Currently involved in both Client and Server side development on Win32 platforms for MC/HA/FT financial applications. Development experience with Win32, Win16, Linux and other flavors of Unix.
     
    Extensive multithreaded development experience on Windows platforms using the Win32 SDK, and MFC.
     
    Experience with HA/FT n-tiered Client/Server systems as well as GUI apps of varying complexity. Some experience with Game developement.
     
    Having learned that the stuff you can barely get away with doing Client-side apps just does not cut it in the real "Server World", I am amazed how many 'professionals' cannot tell the difference between "works" and "correct" or try to (mis)use VB and/or MFC on server-side development projects, never considering that just because it RUNS, does not mean it runs WELL.
     
    Lastly, I am also a collector of arcade games, and can perform repairs, conversions, etc. Search for my name, you will find me on lots of arcade-related documents and sites.
     
    Sites of interest(?):
    http://www.jrtwine.com
    http://www.jrtwine.com/jtwine
    http://www.signingtime.com
    http://www.deletefxpfiles.com
    http://www.checkfavorites.com
    http://www.coinop.org

    Comments and Discussions

     
    GeneralRe: Auto-Complete Combo PinsussJames R. Twine26-Sep-00 8:26 
    QuestionCase Sensitve? PinsussJames Curran 25-Sep-00 4:33 
    AnswerRe: Case Sensitve? PinsussJames R. Twine25-Sep-00 5:26 

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