public override async Task OnAddButtonClick(CancellationToken token) { var issueDate = AddGoodsReceivedNoteIssueDate.Tag as JavaObjectWrapper <DateTime>; var receiveDate = AddGoodsReceivedNoteReceiveDate.Tag as JavaObjectWrapper <DateTime>; Entity.DocumentId = AddGoodsReceivedNoteDocumentId.Text; Entity.IssueDate = issueDate.Data; Entity.ReceiveDate = receiveDate.Data; Entity.Invoice = (Models.Invoice)AddGoodsReceivedNoteInvoiceId.Tag; Entity.InvoiceId = Entity.Invoice.Id; Entity.NoteEntry = _addGoodsReceivedNoteAdapter.Items; if (Entity.NoteEntry.Any(ne => ne.Location == null)) { ShowToastMessage(Resource.String.GoodReceivedNoteInvalidLocations); return; } var result = await NoteService.AddGoodsReceivedNote(Entity, token); if (result.Error.Any()) { RunOnUiThread(() => { ShowToastMessage(Resource.String.ErrorOccurred); }); return; } RunOnUiThread(() => { NavigationManager.GoToGoodsReceivedNotes(); }); }