private async void GetChart(object sender, EventArgs e)
{
float maxTemperature = float.MinValue; // max is 0.000
float minTemperature = float.MaxValue; // min is Highest value of float
if (first)
{
ApiService service = new ApiService();
var temperatureValues = await service.GetTemperatureValues();
foreach (var value in temperatureValues)
{
Data.Add(value);
}
GetChartData getChartData = new GetChartData();
listEntry1.Clear();
try
{
getChartData.DisplayChart(Data, listEntry1);
//List<Entry> SortedList = listEntry1.OrderBy(o => o.Value).ToList();
Chart1.Chart = new LineChart
{
//Entries = SortedList,
Entries = listEntry1,
LineMode = LineMode.Spline,
LineSize = 9,
PointMode = PointMode.None,
LabelTextSize = 40,
};
var count = Data.Count;
float sum = 0;
for (int i = 0; i < count; i++)
{
float val = float.Parse(Data[i].Temperature.ToString());
sum = sum + val;
if (maxTemperature < val)
{
maxTemperature = val;
}
if (minTemperature > val)
{
minTemperature = val;
}
}
Highest.Text = maxTemperature.ToString();
Lowest.Text = minTemperature.ToString();
Average.Text = (sum / count).ToString();
}
catch (NullReferenceException)
{
await DisplayAlert("Error", "no data to display", "Ok");
}
}
first = false;
}
private async void GetChart()
{
if (GetData.flag == true)
{
GetChartData getchart1 = new GetChartData();
GetChartData getchart2 = new GetChartData();
listEntry1.Clear();
listEntry2.Clear();
try
{
getchart1.DisplayChart(30, listEntry1, 3);
Chart1.Chart = new LineChart
{
Entries = listEntry1,
LineMode = LineMode.Spline,
LineSize = 9,
PointMode = PointMode.None,
LabelTextSize = 30,
};
getchart1.DisplayChart(100, listEntry2, 6);
Chart2.Chart = new LineChart
{
Entries = listEntry2,
LineMode = LineMode.Spline,
LineSize = 9,
PointMode = PointMode.None,
LabelTextSize = 30,
};
}
catch (NullReferenceException)
{
await DisplayAlert("Error", "Select a valid stock from the 'Stocks' tab", "Ok");
}
}
else
{
await DisplayAlert("Error", "Select a valid stock from the 'Stocks' tab", "Ok");
}
}
