Dynamics 365 Business Central: Import multiple item pictures at the same time without ZIP file (fileuploadaction, AllowMultipleFiles property, and FileUpload data type) – Customization

Dynamics 365 Business Central

The public preview for Dynamics 365 Business Central 2024 release wave 2 (BC25) is available.
A new feature allows drag and drop on file upload dialog to attach multiple files (New Documents Factbox).
The Import Item Pictures standard feature in Business Central allows for importing multiple item pictures in one go by naming picture files corresponding to item numbers, compressing them to a zip file, and using the Import Item Pictures page.
A new customization requirement eliminates the need for a zip file and allows for directly selecting and importing multiple item pictures.
To implement this requirement, a new action type "fileuploadaction" with the property "AllowMultipleFiles" needs to be added, along with an OnAction trigger.
The FileUpload data type has methods for creating an InStream object for a file and getting the file name.
The example discussed in the article used pictures, but any file format can be processed in the same way.
The source code for this customization is provided on Github for reference, with additional resources on importing pictures from URLs and creating item pictures from encoded text.

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