private void OnSelectAccount(object obj)
{
Account item = obj as Account;
if (item != null)
{
var payments = new ObservableCollection <Payment>(_payments.GetPaymentsByAccountId(item.Id));
var items = payments.SelectMany(p => p.PaymentItems).ToList();
var serviceNames = items.Select(pi => pi.Service.Name).Distinct();
var serCollection = new SeriesCollection();
var sumAll = items.Select(pi => pi.Amount).Sum();
foreach (var name in serviceNames)
{
var sum = items.Where(pi => pi.Service.Name == name).Select(pi => pi.Amount).Sum();
var pieSeries = new PieSeries();
pieSeries.Title = string.Format("{0}: {1} ({2:P})", name, sum, sum / sumAll);
pieSeries.Values = new ChartValues <ObservableValue> {
new ObservableValue(Convert.ToDouble(sum))
};
pieSeries.DataLabels = sum / sumAll > 0.05M;
pieSeries.LabelPosition = PieLabelPosition.InsideSlice;
pieSeries.LabelPoint = chartPoint => name;
serCollection.Add(pieSeries);
}
SeriesCollection = serCollection;
RaisePropertyChanged(() => SeriesCollection);
}
}
