private async void PhonebookDeleteRecordGBtn_Clicked(object sender, EventArgs e) { try { Log.Debug(Globals.LogTag, "Pb delete record call start"); bool b = await pb.DeletePhonebookRecord(PhonebookType.Usim, 1); if (b) { Log.Debug(Globals.LogTag, "Pb record deleted successfully"); } } catch (Exception ex) { Log.Debug(Globals.LogTag, "Pb delete record exception: " + ex.ToString()); } }