Based on the shared information we have analyzed the reported issue “DataTemplate in AllDayAppointment doesn’t show the subject of appointment in Android” and Subject binding working fine as expected from our end. We have tried and we are unable to reproduce the issue.
We have attached the tested sample for your reference,
SPSubburaj Pandian Veluchamy Syncfusion Team June 28, 2019 06:50 AM
Thank you for the update.
We have analyzed the reported scenario “Adding complex layout as template to the all-day appointment through Template Selection doesn’t display the appointment subject in Android”, based on the shared sample, we found that the label placed inside SfBorder, and the label doesn’t get proper width, hence the label doesn’t display inside the SfBorder. You can set WidthRequest property for the label to achieve your requirement.
We hope this helps. Kindly revert us if you have any concern.