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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Can WinAPI::fileExists...
Microsoft Dynamics AX (Archived)

Can WinAPI::fileExists be used with a wildcard?

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Posted on by cjohnson300 213

Hi

Can the WinAPI::fileExists method be used with a wildcard?

For example, I would like to check a folder for an instance of a filename that starts with "12345" and would just like a boolean response if one or more files exist in that directory.  So it would return TRUE if it found "12345abc.txt" or "12345def.csv" or "12345678.txt" etc

If it can't do that, does anyone have a suggestion on how to achieve this?

Many thanks in advance

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  • Verified answer
    Anton Venter Profile Picture
    Anton Venter 20,345 Super User 2025 Season 2 on at

    No, I don't think so. Why don't you enumerate the files in the folder? You will be able to check the file name of each file. There are many examples on the internet on how to do that.

  • cjohnson300 Profile Picture
    cjohnson300 213 on at

    In that case I would need to enumerate the files in the folder at the start (into a table or container??), and then when I loop through the files I want to check, check the container or table for those filenames.  But can I check a container like that?

  • Verified answer
    Martin Dráb Profile Picture
    Martin Dráb 237,801 Most Valuable Professional on at

    You can use System.IO.Directory::GetFiles() to find files with names matching a given pattern.

  • Suggested answer
    cjohnson300 Profile Picture
    cjohnson300 213 on at

    Thanks Martin, just what I was looking for

  • Verified answer
    cjohnson300 Profile Picture
    cjohnson300 213 on at

    Thanks Anton

    As I wanted to check the folder contents multiple times, I used a combination of your suggestion (and stored the results in a container) and Martin's suggestion below

  • Anton Venter Profile Picture
    Anton Venter 20,345 Super User 2025 Season 2 on at

    You are welcome.

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