When more than one File Uploader is required in an application, the need to categorize the attachments based on some key is needed. This is useful as you can then easily determine the purpose or intent of an attachment within the context of the application.
- To add an "Upload Collection By Key" control to your app, right click in the Form Structure section and selection Add Other → Add File Uploader By Key.
- You can then set the Key property as shown below to something that will uniquely identify this particular collection of attachments.
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