One of our colleagues recently had a requirement for having a dialog form with multiple toggle buttons to export several different files.

So, the standard procedure for exporting to CSV in D365 is:

• to create a ‘CommaStreamIo’ object,
• fill it with data
• and then send a file to the user (File::SendFileToUser(stream, filename)) which file then gets downloaded from the browser.

However, the issue with this approach appears when we try to export multiple files with the same function, i.e. ‘File::SendFileToUser(stream, filename)’. In such a case, only the last file gets downloaded.

The solution to this is to use temporary storage, get the link from it and open it in a new tab:

 

We hope that this blog post is helpful, especially if you have found yourself in some simmliar situation. 

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