[Dynamic Form] Implement Attachments functionality

Category

• Enhancement
• Bug
• Question

Version 3.17.0

Expected / Desired Behavior / Question

Standard SharePoint list forms implement Attachments functionality. This functionality is required for our implementation.
Ideally, I would like to inject simple customizations into standard SharePoint forms, similar to injecting JSLink in classic forms. However, no such functionality exists in modern forms. For example, I need to set default value of the Org Unit field from a URL parameter value and make the field read only. Now, the only way we can implement it is with SPFx or Power Apps. Both options are an overkill and a deployment and maintenance nightmare. If there was a site collection feature to enable custom JavaScript injections, that would address a myriad of challenges.

Observed Behavior

Attachments functionality is missing from Dynamic Forms component.

Steps to Reproduce

Implement Form Customizer extensions with a Dynamic Form for a list that has attachments enabled. Notice that Attachments control is missing from the form.

Start with the Dynamic Form component through a Form Customizer extension and reproduce the issue using a SharePoint list with attachments enabled. Identify the existing form controls and determine where attachment handling belongs; done means the Attachments control is present in the Dynamic Form for such lists.