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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / How to verify that the...
Microsoft Dynamics AX (Archived)

How to verify that the file exists on the server?

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Posted on by ismaelivan 578

Actually i have the next code and works correctly in Client side

if(WinAPI::fileExists("c:\\Img\\11169705.png"))

{

}

but I want to apply this in Server side...

if(WinAPIServer::fileExists("c:\\Img\\11169705.png"))

{

}

and get the next error:

Error en la solicitud de permiso de tipo 'FileIOPermission'.
(S)\Classes\FileIOPermission\demand
(S)\Classes\WinAPIServer\fileExists - line 14
(C)\Jobs\_aJob90 - line 11

Can you help me?

Thank very much

*This post is locked for comments

I have the same question (0)
  • Suggested answer
    Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at

    You have access to calls in the .Net namespace, so you could use System.IO.FileInfo there which works both client- and server-side:

    [View:https://community.dynamics.com/ax/b/faisalfareedaxlibrary/archive/2016/01/10/ax-2012-file-existance-check:750:50]

    Also it was a result of a 2-mins google search, you could try it next time (ax server file exists).

    Please do not forget that if you refer a local folder path, that is pointing to the folder on your AX AOS instance instead of the local computer, so it is better to use a network file share UNC path.

    Also visit your old threads to mark the correct answers please with the checkbox next to each helpful post.

  • ismaelivan Profile Picture
    ismaelivan 578 on at

    Hello vilmos,  

    I already tried with this code, but search in my Computer, not in the AOS Server

      System.IO.FileInfo   fileInfo;

      new InteropPermission(InteropKind::ClrInterop).assert();

      fileInfo = new System.IO.FileInfo(_fileName);

      return fileInfo.get_Exists();

  • Verified answer
    ismaelivan Profile Picture
    ismaelivan 578 on at

    I finally shared the Folder

       FileIOPermission fioPermission;

       str data;

       new FileIOPermission("\\\\SERVER\\Img\\" ,"R").assert();

       if(WinAPI::fileExists("\\\\SERVER\\Img\\11169705.png"))

       {

           Box::info("Archivo Encontrado!");

       }

       else

       {

           Box::warning("El archivo no Existe!");

       }

  • ismaelivan Profile Picture
    ismaelivan 578 on at

    And other code...

       System.IO.FileInfo   fileInfo;

       str file;

       new InteropPermission(InteropKind::ClrInterop).assert();

       file = "\\\\SERVER\\Img\\11169705.png";

       fileInfo = new System.IO.FileInfo(file);

       if(fileInfo.get_Exists())

       {

       }

  • Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at

    Make sure you mark my answer with the checkbox instead of yours, since the solution is indeed creating a file share, and using one of the above suggested server-side methods.

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