Dear Sir/Madam,
I've created a PowerApps by customizing a SharePoint form. All complete data will store in SP list. But the apps allow user to save the form by clicking "Save" button, and it will save in collection before submitting completed form.
When user wanted to view/retrieve the data from the collection, I got "Name isn't valid. This identifier isn't recognized" error on dropdown list.
I can retrieve data from the collection on text fill, date picker and etc but not on dropdown list.
My code for save data in collection as below.
Collect(CollectBasicDetails,
{
SurveyVersion:SurveyVersionBD.Text,
Station:Station.SelectedText,
StaffID:StaffID.Text,
EmailAddress:EmailAddress.Text,
AssessorName:AssessorName.Text,
Designation:Designation.Text,
ObservationDate1:ObservationDate1.SelectedDate,
FlightObservation1:FlightObservation1.Text,
ObservationDate2:ObservationDate2.SelectedDate,
FlightObservation2:FlightObservation2.Text,
GHA:GHA.Text,
RegionalHead:RegionalHead.SelectedText,
LoungeOperator:LoungeOperator.Text,
SeatNo:SeatNo.Text
});
I've created collection gallery called BasicDetailsGallery.

When user wanted to retrieve or view the item, it will navigated to BASIC_DETAILS_SCREEN_COLECTION as below.
On default properties, I've put BasicDetailsGallery.Selected.Value on dropdown list and got an error "Name isn't valid. This identifier isn't recognized". I also tried to put BasicDetailsGallery.Selected.Station on default properties but the error "Expected text value" came out.

When this error occurred, the value that selected by user from dropdown menu (Station) is not appear. Its blank.
Can someone provide me guidance/help on this? Please share screenshots as i'm a beginner on PowerApps.
Thank you in advance.