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  1. March 21st, 2009 06:38 AM #1
    VCProgrammer
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    2500 item in list control

    Hi all,

    I have made a dialog based application in vc2008, in that application i have created a list control. In that list control i am displaying file names from a particular folder......

    suppose folder contains 2500 files and allfiles are bmp type, i am also displaying system icon(which is picked up from system at runtime only) in front of every file.

    Now the problem is as soon as i click on adding file to my list control only border of my list ctrl is displyed and everything becomes white and after some time not responding status is being shown and after some time application crashes. i have monitored its memory usage from task manager it exceeds very fast and its very high...

    i am not getting how to resolve it and infact what exactly the problem is...

    can anybody help me in this....
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  2. March 21st, 2009 06:51 AM #2
    ZuK
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    Re: 2500 item in list control

    Youre possibly running into the limit of GDI Handles. There are only some 10000 available and an icon uses 4 as far as I remember.
    Check with taskmanager.
    Kurt
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  3. March 21st, 2009 07:04 AM #3
    GCDEF
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    Re: 2500 item in list control

    The debugger would be a good place to start.
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  4. March 25th, 2009 05:50 PM #4
    Igor Vartanov's Avatar
    Igor Vartanov
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    Re: 2500 item in list control

    suppose folder contains 2500 files ...
    Yeah, and this exactly is a situation when virtual list enters the scene... This is crazy to stuff all 2500 items in the poor control.
    Best regards,
    Igor
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  5. March 26th, 2009 01:41 AM #5
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    cilu
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    Re: 2500 item in list control

    Quote Originally Posted by VCProgrammer View Post
    Hi all,

    I have made a dialog based application in vc2008, in that application i have created a list control. In that list control i am displaying file names from a particular folder......

    suppose folder contains 2500 files and allfiles are bmp type, i am also displaying system icon(which is picked up from system at runtime only) in front of every file.

    Now the problem is as soon as i click on adding file to my list control only border of my list ctrl is displyed and everything becomes white and after some time not responding status is being shown and after some time application crashes. i have monitored its memory usage from task manager it exceeds very fast and its very high...

    i am not getting how to resolve it and infact what exactly the problem is...

    can anybody help me in this....
    As Igor said, a virtual list should probably fix this.
    http://msdn.microsoft.com/en-us/library/ye4z8x58.aspx
    Marius Bancila
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