Graph code for Visual C#

[Princess1983]

Good day,

My name is Princess a jnr Programmer. I am busy trying to do a graph using Visual C#, I am really new at this. Can someone assist me, the graph derive its context from a web page, the web page has 6 records. The graph displays only the 6 records in the X-axis,

• l will like to know how can l display extra 6 empty records when I am using a ArrayList, and

• how do l get the graph plotting to start from zero.

Here is what I have already done, my suggetsted yet wrong attempt answers are in bold (with this added, when i refresh the web page, the graph does not appear anymore):

<%@ WebHandler Language="c#" Class="CapexMonitor.ChartGenerator_WebHandler" %>
 
using System;
using System.Web;
using System.Drawing;
using System.IO;
using NPlot;
 
namespace CapexMonitor
{
    public class ChartGenerator_WebHandler : IHttpHandler
    {
        public void ProcessRequest(HttpContext context)
        {
            // create a new bitmap plotsurface on which to construct the chart.
            NPlot.Bitmap.PlotSurface2D plotSurface = new NPlot.Bitmap.PlotSurface2D(600, 360);
 
 
            //Months line
            System.Collections.ArrayList dates = new System.Collections.ArrayList();
           dates.Add("12");
            string[] sMonths = context.Request["months"].Split(Convert.ToChar(";"));
      int[] Months = new int[sMonths.Length];
 
            for (int i = 1; i < Months.Length; ++i)
 Months[i] =Convert.ToDateTime(sMonths[i]).AddMonths(6);
string[] sContractors = context.Request["contractors"].Split(Convert.ToChar(";"));
            int[] contractors = new int[sContractors.Length];
 
            for (int i = 0; i < contractors.Length; ++i)
                contractors[i] = Convert.ToInt32(Math.Round(Convert.ToDouble(sContractors[i]), 0));
 
            // create a plot object for the data and add it to the plot surface.
            LinePlot lpContractors = new LinePlot();
            //Array.ForEach< <HttpRequest> 
            lpContractors.DataSource = contractors;
            lpContractors.Color = Color.Yellow;
            lpContractors.Label = "Contract Est";
            //lpContractors.Shadow = true;
            lpContractors.Pen = new Pen(Color.Yellow, 2);
          //lpContractors.AbscissaData = sMonths;
            plotSurface.Add(lpContractors);
 
            //Forecast line
            string[] sForecast = context.Request["forecast"].Split(Convert.ToChar(";"));
            int[] Forecast = new int[sForecast.Length];
            for (int i = 0; i < Forecast.Length; ++i)
                Forecast[i] = Convert.ToInt32(Math.Round(Convert.ToDouble(sForecast[i]), 0));
 
            // create a plot object for the data and add it to the plot surface.
            LinePlot lpForecast = new LinePlot();
            lpForecast.DataSource = Forecast;
            lpForecast.Color = Color.Black;
            lpForecast.Label = "Forecast";
            //lpForecast.Shadow = true;
            lpForecast.Pen = new Pen(Color.Black, 2);
            //lpForecast.AbscissaData = dates;
            plotSurface.Add(lpForecast);
 
            //Actual Expenditure line
            string[] sActual = context.Request["actual"].Split(Convert.ToChar(";"));
            int[] Actual = new int[sActual.Length];
            for (int i = 0; i < Actual.Length; ++i)
                Actual[i] = Convert.ToInt32(Math.Round(Convert.ToDouble(sActual[i]), 0));
 
            // create a plot object for the data and add it to the plot surface.
            LinePlot lpActual = new LinePlot();
            lpActual.DataSource = Actual;
            lpActual.Color = Color.Red;
            lpActual.Label = "Actual";
            //lpActual.Shadow = true;
            lpActual.Pen = new Pen(Color.Red, 2);
            //lpActual.AbscissaData = dates;
            plotSurface.Add(lpActual);