Form Dropdown not filling properly for new form

[abrae005]

I'm building an app, tied to a SharePoint List ('Dashboard'), with a form (frm_Edit). One of the fields is "Impacted System". I have a 2nd SP list, called "Systems", which only has 1 field - Title.

On frm_Edit, I'd like the Impacted System field to be a dropdown, populated with the items in 'Systems'. It will then save to the "Impacted System" field in my 'Dashboard' SP list. I've got the Items property of the dropdown set to 'Systems', and it is populating correctly.

The app has 3 screens - scrn_Home, scrn_Gallery, and scrn_Edit. scrn_Home has buttons that will take you to the Gallery, or an "Add New" button that will take you directly to scrn_Edit.

If a user goes to the gallery, and then clicks on an item, it'll take you to scrn_Edit, and the dropdown will be correctly filled. However, if you start at scrn_Home, and click the "New" button, it'll still take you to the form, and you can fill it out, and it saves correctly, but then the dropdown shows the last item selected in the gallery, rather than whatever you just selected.

I'm sure the issue is with the dropdown's "Default" property, but I'm not sure what it needs to be. This is what I currently have:

If(_PrevScreen2 = scrn_Gallery, gallery_Details.Selected.'Impacted System')

_PrevScreen2 is a variable that is set when navigating between screens. 

[WarrenBelz · Accepted solution]

Hi @abrae005 ,

Firstly your Items

If(
   _PrevScreen2 = scrn_Gallery, 
   gallery_Details.Selected.'Impacted System'
)

has to show the last item selected in the gallery (that is what it is set at). You cannot programmatically "select" an item from the gallery. Assuming that the "alternative" on the Variable _PrevScreen2 is a new record, you need something like this

If(
   _PrevScreen2 = scrn_Gallery, 
   gallery_Details.Selected.'Impacted System',
   YourNewFormName.LastSubmit.'Impacted System'
)

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[abrae005]

Thank you @WarrenBelz . That worked.