This component allows you to represent files before uploading them to a server, with the help of ui5-upload-collection-item.
It also allows you to show already uploaded files.
By default there will be drag and drop overlay shown over the ui5-upload-collection when files are dragged. If you don't intend to use drag and drop, set this property. Note: It is up to the application developer to add handler for drop event and handle it. ui5-upload-collection only displays an overlay.
Defines the ui5-upload-collection header. Note: If header slot is provided, the labelling of the UploadCollection is a responsibility of the application developer. accessibleName should be used.
Fired when an element is dropped inside the drag and drop overlay. Note: The drop event is fired only when elements are dropped within the drag and drop overlay and ignored for the other parts of the ui5-upload-collection.