public HistoryByItemVM()
{
NumberOfMounths = "5";
HistoryByItemM = new HistoryByItemM();
ItemList = new ObservableCollection <string>(HistoryByItemM.GetItems().OrderBy(x => x));
NumOfMonthsList = new ObservableCollection <string>(new MonthsListTool().GetNumOfMonthsList());
SeriesCollection = new SeriesCollection();
YFormatter = value => value.ToString("F1");
}
public void updateGraph(string itemName)
{
foreach (var line in seriesCollection)
{
if (line.Title == itemName)
{
seriesCollection.Remove(line);
return;
}
}
SeriesCollection.Add
(new LineSeries
{
Title = itemName,
Values = new ChartValues <double>(HistoryByItemM.GetHistoryByItem(itemName, Labels)),
PointGeometry = DefaultGeometries.Circle,
PointGeometrySize = 15
});
}
