It’s actually not too difficult, but little tricky. Below you can find brief description how you can do it.

1. Create ASP.NET where you’d like put chart image.
2. Drag and drop Web Form Image control to your page. The following code will appear in your YourForm.aspx file:
   <asp:Image id="chartImage" style="Z-INDEX: 101; LEFT: 16px; POSITION: absolute; TOP: 24px" runat="server" Width="464px" Height="392px" ImageUrl=""></asp:Image>
3. Currently you can create ASP.NET page that will create actual chart. Lets name it as CreateChartForm.aspx. You can use any query string parameters to identify desirable chart type, its size and parameters. Put desirable URL to the ImageUrl attribute of the <asp:Image> element in your main page. Currently it could looks like the following:
   <asp:Image id="chartImage" style="Z-INDEX: 101; LEFT: 16px; POSITION: absolute; TOP: 24px" runat="server" Width="464px" Height="392px" ImageUrl="CreateChartForm.aspx?width=464&height=392"></asp:Image>
4. Now prepare code for CreateChartForm.aspx. This page will not have any controls or html content on it. It will have only executable part. Below you can find C# sample code.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml;
using Manco.Chart;
using Manco.Chart.Data;
using Manco.Chart.Layouts;

public partial class Pages_Demo_ShowChart : System.Web.UI.Page
{
	protected void Page_Load(object sender, EventArgs e)
	{
		// Get char width and height from the query string
		string sWidth = Request.QueryString["width"];
		string sHeight = Request.QueryString["height"];

		Size imageSize = new Size(200, 200);
		try
		{
			imageSize.Width = int.Parse(sWidth);
		}
		catch (Exception)
		{
		}

		try
		{
			imageSize.Height = int.Parse(sHeight);
		}
		catch (Exception)
		{
		}

                // Create instance of the Chart Control
                ChartControl.LicenseFilePath = this.Server.MapPath("~/License");
                ChartControl control = new ChartControl();
                m_ChartControl.BackColor = Color.White;
                m_ChartControl.HttpServer = this.Server;
                m_ChartControl.Size = imageSize;

                int liCategoryCount = 3; //
                    Set desirable number of the categories
                int liSeriesCount = 3; //
                    Set desirable number of the series
                

                // Declare array of doubles
                double[,] ldaData = new
                    double[liCategoryCount, liSeriesCount];
                

                double ldMin = 5;
                double ldMax = 30;
                

                // Fill array with data here
                Random rnd = new Random();
                for( int i = 0; i < liCategoryCount; i++)
                {
                    for( int j = 0; j < liSeriesCount; j++)
                    {
                        ldaData[i,j] = ldMin + (ldMax - ldMin) * rnd.NextDouble();
                    }
                }   
                

                // Create IChartDataSource object
                IChartDataSource loDataSource = new ArrayDataSource(ldaData, DataOrientation.CategoryInRow);
                

                // Load data to the chart
                m_ChartControl.Charts[0].LoadData(loDataSource, false, true);

		// Load chart theme
		// Check if we have Chart Theme stored in the session
		XmlDocument xmlThemeDocument;
		xmlThemeDocument = (XmlDocument)Session["Theme"];
		if (xmlThemeDocument == null)
		{
			xmlThemeDocument = new XmlDocument();
			ResourceLoader.WebServer = this.Server;
			Stream stream = ResourceLoader.GetFileStream(this.Server.MapPath("~/DemoChart.xml"));
			xmlThemeDocument.Load(stream);
			stream.Close();
		}

		m_ChartControl.LoadTheme(xmlThemeDocument.DocumentElement);

		// Drow chart
		m_ChartControl.Init3DRenderer();
		m_ChartControl.Draw();

		// make a memory stream to work with the image bytes
		MemoryStream imageStream = new MemoryStream();

		// put the chart image into the memory stream
		m_ChartControl.Image.Save(imageStream, System.Drawing.Imaging.ImageFormat.Png);

		// make byte array the same size as the image
		byte[] imageContent = new Byte[imageStream.Length];

		// rewind the memory stream
		imageStream.Position = 0;

		// load the byte array with the image
		imageStream.Read(imageContent, 0, (int)imageStream.Length);
		imageStream.Close();

		// return byte array to caller with image type
		Response.ContentType = "image/png";
		Response.BinaryWrite(imageContent);

		// Don't forget to dispose chart control after use.
		m_ChartControl.Dispose();
	}
}