Open a local file with X++

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Posted on by CU09091357-0

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Hello, I want to open a local file in my C:\ drive when clicking a button in D365FO.

I'm in tier-1 environment

I tried to use browser.navigate function to open in a browser but it didn't work, it was giving pop up errors.

Even I tried to access the file directly to open it, and also it didn't work.

Seems like the D365FO can't read my local C:\ drive.

Can someone help.

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Dynamics 365 Finance

Microsoft Dynamics AX

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Martin Dráb 237,976 Most Valuable Professional on at

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What is business scenario you're dealing with? Your description isn't clear, e.g. opening a file in a browser is a very different thing than "reading a local drive by D365FO".

If you want to work with the file in X++, note that X++ code running on a web server (usually in an Azure data center) can't connect to users' machines and manipulate files there. What you can do it uploading a local file to the web application (e.g. with File::getFileFromUser()) and process this uploaded copy rather than the local file. An alternative would be using a storage that the web application can access, e.g. having an Azure file share mapped as a local drive and write code to access the share from X++.

Or do you want just an HTML hyperlink trying to open a local file (without the file ever reaching F&O)?

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CU09091357-0 501 on at

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Martin Dráb thank you for your reply.

My goal is to open some pdf files located in my C:\ drive.

I don't mind if I just do my own link as C:\Attachments\file.pdf and write it in new tab. But I want it to be automated by x++ when clicking the button.

The browser() function didn't work nor the system.io library

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Mohamed Amine Mahmoudi 26,443 Super User 2025 Season 2 on at

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Hi @CU09091357-0,

As far as i know, you can't access files on a local machine since D365fo is a web application. in this case, so i suggest you use power automate to retrieve your files through a connector (on-premises data getway).

Best regards,

Mohamed Amine MAHMOUDI

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Martin Dráb 237,976 Most Valuable Professional on at

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Please give us more details than just repeating that you want to open a file.

Do you mean that you assume that every user's computer has C:\Attachments\file.pdf (which sounds like a strange assumption to me) and you want to open the file by the web browser or a default application for PDF files? If so, we should ignore the remark "the D365FO can't read my local C:\ drive", because the requirement is not about reading any files in F&O, right?

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CU09091357-0 501 on at

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Mohamed Amine Mahmoudi okay man, thanks for your clarification!

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CU09091357-0 501 on at

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Martin Dráb I'm in my local environment, I'm using it as data archive.

The attachments are not accessible because we don't have their metadata in the local emulator (127.0.0.1:10000), and we tried everything but nothing is working.

I have all the attachments downloaded in my C:\ drive.

I'm using the approach of opening a new tab with url: C:\attachments\filename (which is the fileid that I will take from the docuvalue table when I click the button that I created and wants to write the code that opens me a new tab inside), so the file open.

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Martin Dráb 237,976 Most Valuable Professional on at

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First of all, your URL is wrong. You can't use the local path (C:\Attachments\file.pdf) as a URL; you must use the file URI scheme instead (e.g. file:///c:/Attachments/file.pdf). Please test the URL before continuing.

But as I remember, such URLs don't work in Browser.navigate(). You'll need to look for a different solution. What about storing the files directly in the database (and avoid both this topic about local files and your problems with the Azure storage emulator)?

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CU09091357-0 501 on at

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Martin Dráb will try this approach, thank you!

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Anthony Blake 2,963 Super User 2025 Season 2 on at

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Hi @CU09091357-0

Are you fixing the file name and location, because if its interactive anyway (click of a button) you could use the file upload control or the file upload dialog File::GetFileFromUser()

Take a look at this post: https://community.dynamics.com/blogs/post/?postid=7a67400d-c28b-4080-bace-b7f02c834695

Thanks

Anthony

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CU09091357-0 501 on at

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@CU09091357-0 okay thanks

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