/// <summary> /// Action to be executd for calculating indicator /// </summary> /// <returns>for future usage. Must be ignored at this time.</returns> protected override bool TrueAction() { // Validate int iSize = _chartPanel._chartX.RecordCount; if (iSize == 0) { return(false); } double paramDbl1 = ParamDbl(1); if (paramDbl1 <= 0) { ProcessError("Invalid Max AF for indicator " + FullName, IndicatorErrorType.ShowErrorMessage); return(false); } double paramDbl2 = ParamDbl(2); if (paramDbl2 <= 0) { ProcessError("Invalid Min AF for indicator " + FullName, IndicatorErrorType.ShowErrorMessage); return(false); } // Get the data string paramStr0 = ParamStr(0); Field pHigh = SeriesToField("High", paramStr0 + ".high", iSize); if (!EnsureField(pHigh, paramStr0 + ".high")) { return(false); } Field pLow = SeriesToField("Low", paramStr0 + ".low", iSize); if (!EnsureField(pLow, paramStr0 + ".low")) { return(false); } Navigator pNav = new Navigator(); Recordset pRS = new Recordset(); pRS.AddField(pHigh); pRS.AddField(pLow); pNav.Recordset_ = pRS; // Calculate the indicator Oscillator ta = new Oscillator(); Recordset pInd = ta.ParabolicSAR(pNav, pHigh, pLow, paramDbl1, paramDbl2, FullName); // Output the indicator values Clear(); for (int n = 0; n < iSize; ++n) { AppendValue(DM.TS(n), n < 2 ? null : pInd.Value(FullName, n + 1)); } return(_calculateResult = PostCalculate()); }