Special Characters in attachments file name

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Posted on 20 Oct 2023 14:06:35 by LindseyT

Hello!

I have a canvas app with a form that allows users to upload attachments. The issue is that users upload attachments that have special characters in the file name, and then they are not successfully saved to the SharePoint. Is there a way to show an error message when the file name of a chosen attachment includes a special character before it can be submitted in the app?

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BCBuizer 22,262 Super User 2025 Season 2 on 20 Oct 2023 at 15:21:50

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Re: Special Characters in attachments file name

Hi @LindseyT ,

Assuming tha AttachmentsComponent is a regular Attachments control, the below should work:

If( "Error" in ForAll( AttachmentsComponent.Attachments, If( IsMatch( ThisRecord.Name, ".*[\\\""<>!@#$%^&*].*" ), "Error" ) ), Notify("No special characters in filename please", NotificationType.Error), <Upload file> )