Add Checkbox to a gallery (items = SP DocumentLibrary - checkbox should add checked images to an email)

[Waegemma]

Hi there,

Is there a way to add a checkbox  (not linked to a column/field) to a gallery (based on a SP Document Library) so you can collect all checked items into say a collection?

Context: app containing workorders from a list, connected images are in a separate library (because adding attachments in the field proved to be problem-prone, whereas uploading images to a library was not), boss needs to be able to automatically generate mail based on selection of workorders, and choose in a gallery which images are sent along. The mail is generated as a concat/concatenate in a RichTextEditor. 

[Drrickryp · Accepted solution]

@Waegemma 

Add a checkbox to the gallery and set the OnCheck property to Collect(collist,ThisItem) and set the OnUncheck property to Remove(collist,ThisItem).  Put a datatable on the screen and set its Items property to collist to see which items have been selected in the gallery.

[Waegemma]

Thank you @Drrickryp