private async void getChart() { float totEarnings = await firestore.SumEarnings(); float totOutflows = await firestore.SumOutflows(); var entries = new[] { new Entry(totEarnings) { Label = "Entrate", ValueLabel = totEarnings.ToString(), Color = SKColor.Parse("#68B9C0") }, new Entry(totOutflows) { Label = "Uscite", ValueLabel = totOutflows.ToString(), Color = SKColor.Parse("#90D585") } }; var chart = new LineChart() { Entries = entries }; this.LineChart.Chart = chart; }