public DeskViewModel(Entities.Instrument Call, Entities.Instrument Put, double strike, DateTime MatDate)
{
this._Put = Put;
this._Call = Call;
this._Strike = strike;
this._MaturityDate = MatDate;
this._IsViewed = false;
}
public void PublishReview(Entities.Review pReview)
{
if(sSubscriptions.ContainsKey(pReview.UPC))
{
foreach(String lSubscriberAddress in sSubscriptions[pReview.UPC])
{
IReviewSubscriber lSubscriber = ServiceFactory.GetService<IReviewSubscriber>(lSubscriberAddress);
lSubscriber.ReceiveReview(pReview);
}
}
}
public static Entities.HangHoa[] CheckGoiHang(Entities.HangHoa[] hh1, Entities.GoiHang[] goihang, Entities.ChiTietGoiHang[] chitietgoihang)
{
try
{
ArrayList array = new ArrayList();
foreach (Entities.GoiHang item in goihang)
{
int sotang = 0;
foreach (Entities.ChiTietGoiHang item1 in chitietgoihang)
{
if (item.MaGoiHang == item1.MaGoiHang)
{
sotang++;
foreach (Entities.HangHoa item2 in hh1)
{
if (item1.MaHangHoa == item2.MaHangHoa)
{
sotang--;
break;
}
}
if (sotang != 0)
break;
}
}
if (sotang == 0)
{
Entities.HangHoa hh = new Entities.HangHoa();
hh.MaHangHoa = item.MaGoiHang;
hh.TenHangHoa = item.TenGoiHang;
hh.MaNhomHangHoa = item.MaNhomHang;
hh.TenNhomHangHoa = item.TenNhomHang;
hh.MaThueGiaTriGiaTang = "";
hh.GiaBanBuon = item.GiaBanBuon;
hh.GiaBanLe = item.GiaBanLe;
hh.GiaNhap = item.GiaNhap;
array.Add(hh);
}
}
return (Entities.HangHoa[])array.ToArray(typeof(Entities.HangHoa));
}
catch
{
return new Entities.HangHoa[0];
}
}
public static double CalculateDelta(Entities.OptionType type, double settleprice, double strike, double volatility, int daystomate, double risk_free)
{
double pdaystomate = (double)daystomate / YearLength;
double d1=(Math.Log(settleprice/strike)+volatility*volatility*0.5*pdaystomate)/(volatility*Math.Sqrt(pdaystomate));
if (type == Entities.OptionType.Call)
{
return Math.Exp((-1 * risk_free * pdaystomate) * NormalDistribution(d1));
}
else if (type == Entities.OptionType.Put)
{
return -1.0 * Math.Exp(-1.0 * risk_free * pdaystomate) * NormalDistribution(-1.0 * d1);
}
else
{
return 0;
}
}
public static double CalculateThetha(Entities.OptionType type, double settleprice, double strike, double volatility, int daystomate, double risk_free)
{
double pdaystomate = (double)daystomate / YearLength;
double d1 = (Math.Log(settleprice / strike) + volatility * volatility * 0.5 * pdaystomate) / (volatility * Math.Sqrt(pdaystomate));
double temp = settleprice * Math.Exp(-1 * risk_free * pdaystomate);
double d2 = d1 - volatility * Math.Sqrt(pdaystomate);
if (type == Entities.OptionType.Call)
{
return (-1 * (temp * NormalDistributionDensity(d1) * volatility) / (2 * Math.Sqrt(pdaystomate)) + risk_free * temp * NormalDistribution(d1) - risk_free * strike * temp * NormalDistribution(d2)) / Quant.YearLength;
}
else if (type == Entities.OptionType.Put)
{
return (-1 * (temp * NormalDistributionDensity(d1) * volatility) / (2 * Math.Sqrt(pdaystomate)) - risk_free * temp * NormalDistribution(-1 * d1) + risk_free * strike * temp * NormalDistribution(-1 * d2)) / Quant.YearLength;
}
else
{
return 0;
}
}
public static double CalculateVega(Entities.OptionType type, double settleprice, double strike, double volatility, int daystomate, double risk_free)
{
double pdaystomate = (double)daystomate / YearLength;
double d1 = (Math.Log(settleprice / strike) + volatility * volatility * 0.5 * pdaystomate) / (volatility * Math.Sqrt(pdaystomate));
return settleprice*NormalDistributionDensity(d1)*Math.Exp(-1*risk_free*pdaystomate)*Math.Sqrt(pdaystomate)/100;
}
public void UpdateUrl(Entities.UrlInfo objUrl)
{
dataProvider.UpdateUrl(objUrl.Id, objUrl.PortalId, objUrl.ForumId, objUrl.TopicId, objUrl.Url, objUrl.LastModifiedOnDate);
//Caching.ClearUrlCache(id, portalId);
}
public int AddUrl(Entities.UrlInfo objUrl)
{
return dataProvider.AddUrl(objUrl.PortalId, objUrl.ForumId, objUrl.TopicId, objUrl.Url, objUrl.CreatedOnDate);
}
public static bool CheckHangHoaOrGoiHang(string MaHangHoa, Entities.GoiHang[] GoiHang, Entities.ChiTietGoiHang[] ChiTietGoiHang)
{
//True: Gói hàng | False: Hàng hóa
bool kq = false; //Mặc định là hàng hóa
if (GoiHang.Equals(null) || ChiTietGoiHang.Equals(null))
{
return kq;
}
if (GoiHang.Length == 0 || ChiTietGoiHang.Length == 0)
{
return kq;
}
foreach (Entities.GoiHang item in GoiHang)
{
foreach (Entities.ChiTietGoiHang item1 in ChiTietGoiHang)
{
if (item1.MaGoiHang.Equals(item.MaGoiHang) && item1.Equals(MaHangHoa))
{
kq = true;
return true;
}
}
}
return kq;
}
public void CreateFileServerConfig(Entities.ServerConfig config)
{
try
{
string Links = System.Windows.Forms.Application.StartupPath.ToString() + new Common.Constants.Sql().ServerConfig;
if (CheckFile(Links) == true)
{
DeleteFile(Links);
}
XmlTextWriter txtwrite = new XmlTextWriter(Links, null);
txtwrite.WriteStartDocument();
txtwrite.WriteStartElement(constants.Config);
txtwrite.WriteElementString(constants.Server, MaHoa(constants.KeywordServerConfig, config.Server));
txtwrite.WriteElementString(constants.IP, MaHoa(constants.KeywordServerConfig, config.Ip));
txtwrite.WriteElementString(constants.Port, MaHoa(constants.KeywordServerConfig, config.Port));
txtwrite.WriteEndElement();
txtwrite.WriteEndDocument();
txtwrite.Close();
}
catch (Exception ex)
{ string s = ex.Message.ToString(); }
}