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I am following the Building an Event App Using Microflows learning path. In 4.3.3, you create a `Ticket` entity with a many-to-many relation with `Days`, and you need to create an edit page for ticket. I added a reference set selector of `Days` to the `Ticket` edit page. After a bit of trial and error (and trying to interpret the documentation), I figured that I needed to add a ‘Select page’ to the ‘Add’ button. Now that I could generate the select page using a template (scroll to the bottom to see screenshots), I wonder how all this works. Question 1: How does the select page’s save button work? The save button is configured to ‘Save changes’, but it is not in the context of any data view. How does it even know what to save? I.e., where is the connection between the checkboxes and the resulting (?) list? Where is this selection list even saved? Obviously not in the database, but there is also no microflow or similar where I can see the data flow. Question 2: Where do checkboxes come frome? They are neither visible in the structure view nor in the design mode. There seems to be only a plain list view, nothing special that indicates checkboxes are shown. This can only be seen when actually running the app and opening the page. Question 3: How would I pre-select checkboxes for already selected items? Again, as it is totally unclear to me where the data is saved, I have no clue whatsoever where to start. Question 4: Assume the selection list is rather small (e.g. usually an event only features at most 5 days). In this case, having extra ‘add’ – ‘select’ – ‘save’ clicks is rather cumbersome. I would rather like to have a selection list directly in the `Ticket` edit page. So how would I edit the reference set in place? Again, as it is unclear to me how the selection page template works, it is really challenging to transfer this behaviour to other places.   I use Mendix 8 beta 2.   Edit page (live):   select page (live):   edit page (structure): select page (structure):

asked 2019-07-01

1 answers