List Attachment

Question

Can you give me a brief on how Attachment List is linked to a specific item and how does it work, I want to customize it to filter the attached documents

Answer 1

For each item SharePoint creates folders for storing attachments.

The URL format is

http://weburl/Lists/<listname>/Attachments/<listItemID>

You can also check it with the REST-URL:

http://weburl/<site>/_api/Lists/getbytitle('<ListName>')/items?$select=ID,Attachments,AttachmentFiles&$expand=AttachmentFiles