public void CalcProps(PropInfo inputProp1, PropInfo inputProp2) { double dbl1; double dbl2; if (string.IsNullOrEmpty(inputProp1.Value) || string.IsNullOrEmpty(inputProp2.Value)) { for (int i = 0; i < n; i++) { string key = Enum.GetName(typeof(AquaProps), i); this.PropDic[key] = ""; } this.RaisePropertyChanged("PropDic"); } else if (double.TryParse(inputProp1.Value, out dbl1) && double.TryParse(inputProp2.Value, out dbl2)) { for (int i = 0; i < n; i++) { string key = Enum.GetName(typeof(AquaProps), i); string strvalue; double dblValue; if (inputProp1.NameEN == "Pressure") { if (inputProp2.NameEN == "VaporFraction") { dblValue = IF97.PX(dbl1, dbl2, i); } else if (inputProp2.NameEN == "Temperature") { dblValue = IF97.PT(dbl1, dbl2, i); } else if (inputProp2.NameEN == "SpecificVolume") { dblValue = IF97.PV(dbl1, dbl2, i); } else if (inputProp2.NameEN == "Enthalpy") { dblValue = IF97.PH(dbl1, dbl2, i); } else if (inputProp2.NameEN == "Entropy") { dblValue = IF97.PS(dbl1, dbl2, i); } else { throw new FormatException(); } } else if (inputProp1.NameEN == "Temperature") { if (inputProp2.NameEN == "VaporFraction") { dblValue = IF97.TX(dbl1, dbl2, i); } else if (inputProp2.NameEN == "SpecificVolume") { dblValue = IF97.TV(dbl1, dbl2, i); } else if (inputProp2.NameEN == "Enthalpy") { dblValue = IF97.TH(dbl1, dbl2, i); } else if (inputProp2.NameEN == "Entropy") { dblValue = IF97.TS(dbl1, dbl2, i); } else { throw new FormatException(); } } else if (inputProp1.NameEN == "Enthalpy") { if (inputProp2.NameEN == "Entropy") { dblValue = IF97.HS(dbl1, dbl2, i); } else { throw new FormatException(); } } else { throw new FormatException(); } if (dblValue == -1) { strvalue = "N/A"; } else { strvalue = dblValue.ToString(); } this.PropDic[key] = strvalue; } this.RaisePropertyChanged("PropDic"); } }