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hong  
#1 Posted : Thursday, 5 December 2019 10:55:13 AM(UTC)
hong

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Groups: AcademicCoachingSchool, admin, Administration, BookSeller, CatholicSchool, CoachingAdult, CoachingProfessional, CoachingSports, ExtraCurriculumCoaching, IndependentSchool, Moderator, MusicTeacher, PrivateSchool, PublicSchool, SelectiveSchool, tutor
Joined: 23/11/2008(UTC)
Posts: 520

Xamarin forms DisplayAlert not showing

DisplayAlert is a method on a Xamarin.Forms Page. One possible issue is that you are calling DisplayAlert from outside of a page or view. If you call it from other
threads, do the following. Please note that it's called on MainPage here.                

Code:
Device.BeginInvokeOnMainThread(async () =>
                {
                    if (await Application.Current.MainPage.DisplayAlert(Constants.ALERT_TITLE, UIConstants.UnsavedData, UIConstants.TextYes, UIConstants.TextNo))
                    {
                        //DoYes
                    }
                    else
                    {
                        //DoNo
                    }
                });

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