// 构造函数
public BarChart()
{
BarItems = new BarItemCollection();
FontSize = 0.1;
Loaded += OnLoaded;
}
//private void PositionUpdateCallback(object state)
//{
// if (PositionUpdated)
// {
// PositionUpdated = false;
// if (portfolioCB.SelectedValue != null)
// {
// ReloadDataCallback();
// }
// }
//}
//private void OnPositionUpdated(PositionVM vm)
//{
// PositionUpdated = true;
//}
private async void portfolioCB_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (portfolioCB.SelectedValue != null)
{
var portfolio = portfolioCB.SelectedValue?.ToString();
deltaRadioButton.IsChecked = true;
marketRadioButton.IsChecked = true;
var strategyVMCollection = _otcOptionHandler?.StrategyVMCollection;
var strategyContractList = strategyVMCollection.Where(s => s.Portfolio == portfolio /*&& !string.IsNullOrEmpty(s.BaseContract)*/)
.GroupBy(s => s.BaseContract).Select(c => new StrategyBaseVM {
Contract = c.First().BaseContract, OptionContract = c.First().Contract
}).ToList();
var strategyVMList = strategyVMCollection.Where(s => s.Portfolio == portfolio && !string.IsNullOrEmpty(s.BaseContract)).ToList();
foreach (var vm in strategyContractList)
{
var contractinfo = ClientDbContext.FindContract(vm.OptionContract);
if (contractinfo != null)
{
vm.Expiration = contractinfo.ExpireDate;
vm.MktVM = await _marketDataHandler.SubMarketDataAsync(vm.Contract);
}
var futurecontractinfo = ClientDbContext.FindContract(vm.Contract);
if (futurecontractinfo != null)
{
vm.FutureExpiration = futurecontractinfo.ExpireDate;
}
}
expirationLV.ItemsSource = strategyContractList;
var baseContractSet = new SortedSet <string>();
foreach (var vm in strategyVMList)
{
if (vm.BaseContract != null)
{
baseContractSet.Add(vm.BaseContract);
}
}
var baseContractList = baseContractSet.ToList();
baseContractAxis.ItemsSource = baseContractList;
foreach (var vm in strategyVMList)
{
if (vm.BaseContract != null)
{
_riskDict[vm.BaseContract] = baseContractList.FindIndex(s => s == vm.BaseContract);
}
}
// set x-axis using strikeList;
lock (BarItemCollection)
{
BarItemCollection.Clear();
for (int i = 0; i < baseContractList.Count; i++)
{
BarItemCollection.Add(new ColumnItem {
CategoryIndex = i, Value = 0
});
}
}
columnSeries.ItemsSource = BarItemCollection;
ReloadDataCallback();
}
}
