Fetch Filename from Directory using DotNet Datatype-NAV 2017

During recent implementation got task to fetch the files from specified directory to import in tables using XMLPORT and I was using NAV 2017.

Now in classic version we were able to use FILE and this virtual table was giving us the list of files in specified path by using required filters and we were able to import data from multiple files.

Coming to latest version to find the files in directory I used DotNet variables as follows

From one of the folder I am fetching the filename as follows


Define the variables as follows

Name             Data Type               Sub type                                                       Length
gvDirectory  DotNet                      System.IO.DirectoryInfo.’mscorlib’
gvFile             DotNet                      System.IO.FileSystemInfo.’mscorlib’
gvArr              DotNet                       System.Array.’mscorlib’
i                        Integer

In one codeunit write following program

FOR i:=0 TO gvArr.Length-1 DO





This will help in importing the multiple/sequential’s files in tables using XMLPORT.

Let me know yours feedback.



Author: Ammolh Saallvi

I'm a Dynamics NAV/Navision developer and helps partners and end-users with their NAV implementations. I do everything from third-party management advisory, training to new NAV teams, project management, training, setup and development. Do you want to hire me to help getting your project a success? Then contact me via dropping one email from linkedin Expertise in end-to-end development of software products from requirement analysis to System Study, Documentation and Testing. Demonstrated abilities in analyzing information system needs, evaluating end-user requirements, custom designing solutions, troubleshooting for complex information systems management. Deft at carrying out risk analysis, impact analysis, project reviews and documentation. Strong Problem solving & Technical skills coupled with confident decision making for enabling effective solutions leading to high customer satisfaction as well as low operational costs. Certifications:- Microsoft Certified Technology Specialist -Dynamics Microsoft Sure Step Certified Professional Moderator at DUG Forum Specialties: • ERP Implementation • Client/Server Programming • Coding, Testing, troubleshooting and documentation. • Database Tuning and SQL • Database Performance • Debugging large programs • Project Management and Resource Management.

4 thoughts on “Fetch Filename from Directory using DotNet Datatype-NAV 2017”

  1. Hi,
    I’d do it the following way:

    DirectoryInfo DotNet System.IO.DirectoryInfo
    ArrayList DotNet System.Collections.ArrayList
    FileName Text


    DirectoryInfo := DirectoryInfo.DirectoryInfo(‘MySearchPath’);
    ArrayList := DirectoryInfo.GetFiles(‘*.txt’); //Example filter on txt files only
    FOREACH FileName in ArrayList DO BEGIN

    So we do not need to use a DotNet File Variable.

    Another point: I would not recommend to use a prefix like “gv”, this is not Microsoft Styleguide compatible.


      1. Amol,
        This solution is exactly what I am needing. However, I get an error that says it can’t find part of the path. I am tying to access a directory from the local PC (C:\TEMP) on a system that uses an Azure-Based cloud NAV Server and SQL.

        I the above calls attempting to access the C: drive of the NAV Server? If so, how can I get it to access local drives?


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