PlotFunctionElement.getPeno C# (CSharp) Method

    public IntegerElement getPeno()
    { return row; }

        public override void VisitPlotFunctionElement(PlotFunctionElement element)
        {
            if (mVariableMap.ContainsKey(element.getData().getText()))
            {
                //   double[,] temp = ((MatrixVariableDeclaration)(mVariableMap[element.getData().getText()])).getdoubleValue();
                if (element.getPlotFunction() == "subPlot")
                {
                    int pane = int.Parse(element.getPeno().getText()); //.getPane().getText());
                    string plotType = element.getPlotType();

                    if (pane >= 4 || pane <= 0)
                    {
                        Console.Write("pane no. is not valid.. it lies between 1 to 4.. Try again..");
                        sendres(112, "pane no. is not valid.. it lies between 1 to 4.. Try again..");
                        return;
                    }
                    else if (plotType == "2D" || plotType == "1D")
                    {
                        if ((IntegerElement)(element.getMode()) != null)
                        {
                            Console.Write("Invalid argumenet.. Mode is not required.. Try again.. ");
                            sendres(112, "Invalid argumenet.. Mode is not required.... Try again..");
                            return;
                        }
                    }
                    else if (plotType == "3D")
                    {
                        int mode = int.Parse(((IntegerElement)(element.getMode())).getText());
                        if (mode > 3 || mode <= 0)
                        {
                            Console.Write("Invalid mode.. Give the input between 1..3 ");
                            sendres(112, "Invalid mode.. Give the input between 1..3 ");
                            return;
                        }
                    }
                }
                else if (element.getPlotFunction() == "plot")
                {
                    string plotType = element.getPlotType();
                    string data = element.getData().getText();
                    if (plotType == "1D" || plotType == "2D")
                    {
                        if ((IntegerElement)(element.getMode()) != null)
                        {
                            Console.Write("Invalid argumenet.. Mode is not required.. Try again.. ");
                            sendres(112, "Invalid argumenet.. Mode is not required.. Try again.. ");
                            return;
                        }
                    }
                    else if (plotType == "3D")
                    {
                        int mode = int.Parse(((IntegerElement)(element.getMode())).getText());
                        if (mode >= 3 || mode <= 0)
                        {
                            Console.Write("Invalid mode.. Give the input between 1..3 ");
                            sendres(112, "Invalid mode.. Give the input between 1..3 ");
                            return;
                        }

                    }
                }
                else if (element.getPlotFunction() == "setScaleMode")
                {
                    string scaleMode = element.getScaleMode();
                    if (scaleMode != "log" || scaleMode != "linear")
                    {
                        Console.Write("Invalid scale mode.. it should be either 'linear' or 'log'");
                        sendres(112, "Invalid scale mode.. it should be either 'linear' or 'log'");
                        return;
                    }
                }

                Plot pr = new Plot();
                pr = convert_Ele_to_plot(element);
                p.writetolist(pr);
            }
            else
            {
                Console.Write("Plot data not declared.. Try again..");
                sendres(112, "Plot data not declared.. Try again..");
                return;
            }

        }