//public IEnumerable<string> GetFilePaths(DateTime? firstDate, DateTime? lastDate)
//{
// IEnumerable<string> paths;
// if (firstDate.HasValue && lastDate.HasValue)
// {
// var lowerBound = firstDate.Value.Ticks;
// var upperBound = lastDate.Value.Ticks;
// paths = TickFileModels
// .Where(file => lowerBound < file.DateForFile.Ticks && file.DateForFile.Ticks < upperBound)
// .Select(file => file.File.LongFileName);
// }
// else
// {
// paths = new List<string> { };
// }
// return paths;
//}
public List <List <string> > GetGroupedFilePaths(DateTime?firstDate, DateTime?lastDate)
{
List <List <string> > groups = new List <List <string> > {
};
if (firstDate.HasValue && lastDate.HasValue)
{
var lowerBound = firstDate.Value.Ticks;
var upperBound = lastDate.Value.Ticks;
var selectedSymbols = SymbolModels.Where(s => s.Selected).ToList();
var fileModels = TickFileModels
.Where(file => lowerBound <= file.DateForFile.Ticks && file.DateForFile.Ticks <= upperBound);
var symbolFilteredFileModels = fileModels.Join(
selectedSymbols,
outerModel => outerModel.Symbol.Symbol,
innerModel => innerModel.Symbol,
(outerModel, innerModel) => outerModel);
var distinctDates = fileModels
.Distinct((model1, model2) => model1.DateForFile.Date == model2.DateForFile.Date)
.Select(model => model.DateForFile);
foreach (var _dateTime in distinctDates)
{
var dateGroup = symbolFilteredFileModels
.Where(model => model.DateForFile.Date == _dateTime.Date)
.Select(model => model.File.LongFileName).ToList();
groups.Add(dateGroup);
}
}
return(groups);
}
public void SetDates()
{
var selectedSymbols = SymbolModels.Where(s => s.Selected).ToList();
var displayDates = TickFileModels.Join(
selectedSymbols,
tickFileModel => tickFileModel.Symbol.Symbol,
symbolModel => symbolModel.Symbol,
(model, symbolModel) => model.DateForFile).Distinct().ToList();
// Set min and max dates:
if (displayDates.Count != 0)
{
FirstDate = displayDates.Min();
LastDate = displayDates.Max();
}
else if (TickFileModels.Count != 0)
{
FirstDate = TickFileModels.Select(m => m.DateForFile).Min();
LastDate = TickFileModels.Select(m => m.DateForFile).Max();
}
AvailableDates = new ObservableCollection <DateTime>(displayDates);
}