public void SetFilter(PairViewFilter filter)
{
IPairModel model = this;
if (model.SelectedMarket == null)
{
OnPairsChanged(null);
return;
}
var token = filter.PairToken;
var allPairs = model.SelectedMarket.Pairs;
var filtered = filter.IsActiveOnly ? allPairs.ActiveOnly() : allPairs;
filtered = string.IsNullOrEmpty(token)
? filtered
: filtered.Where(p =>
p.Pair.BaseCurrency.Name.IndexOf(token, StringComparison.OrdinalIgnoreCase) >= 0 ||
p.Pair.QuoteCurrency.Name.IndexOf(token, StringComparison.OrdinalIgnoreCase) >= 0);
var result = new List <PairOfMarket>();
foreach (var pair in filtered)
{
if (Statistics == null)
{
result.Add(pair);
continue;
}
var stats = Statistics.FirstOrDefault(s => s.Pair.Equals(pair.Pair));
switch (filter.DailyChange)
{
case DailyChangePairEnum.PositiveOnly:
if (stats != null && stats.DailyChangeOfLastPrice() > 0)
{
result.Add(pair);
}
break;
case DailyChangePairEnum.NegativeOnly:
if (stats != null && stats.DailyChangeOfLastPrice() < 0)
{
result.Add(pair);
}
break;
default:
result.Add(pair);
break;
}
}
OnPairsChanged(result);
}
private void View_FilterChanged(PairViewFilter filter)
{
_filter = filter;
Model.SetFilter(_filter);
}
