Funnel chart
Now, let's learn how to create a Funnel chart. We will create a chart showcasing the purchase-conversion analysis ofa a website. The data will look as shown below:
| Wesite Sections | Website Visits | 
|---|---|
| Unique Website Visits | 1460000 | 
| Programme Details Section Visits | 930000 | 
| Attempts to Register | 540000 | 
| Successful Registrations | 210000 | 
| Logged In | 190000 | 
| Purchased on Introductory Offers | 120000 | 
The chart will look as shown below:
FusionCharts will load here..
               
            Click here to edit the funnel chart.
Render the Chart
Create the FunnelChart.aspx.cs file and do the following:
- Include the 
FusionCharts.DataEngineandFusionCharts.Visualization.dll files. - Create 
DataTable. - Retrieve data using database query.
 - Set server name.
 - Set 
DataBasename. - Connect with 
DataBaseusing a connection string. - Create 
StaticSourceusing theDataTable. - Create an instance of 
DataModelclass. - Add 
DataSourceto theDataModel. - Instantiate Funnel Chart.
 - Set chart width and height.
 - Set 
DataModelinstance as the data source of the chart. - Set Chart Title.
 - Finally, use a container using 
<div>to render the chart. 
The code is shown below:
using FusionCharts.Visualization;
using FusionCharts.DataEngine;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
namespace FusionChartsVisualisationWebFormsSamples.Samples {
    public partial class FunnelChart : System.Web.UI.Page {
        protected void Page_Load(object sender, EventArgs e) {
            // Create data table
            DataTable primaryData = new DataTable();
            // Retrieve data using database query
            string query = "select [Website Sections], [Website Visits] from dbo.WebsiteVisits";
            string connetionstring = null;
            // Servevr name
            string serverName = "FusionChartsServer";
            // DataBase name
            string databaseName = "FusionChartsSamplesDB";
            ChartData.Clear();
            // Connection string
            connetionstring = "Data Source=" + serverName + ";Initial Catalog=" + databaseName + ";Trusted_Connection=true;";
            using (SqlConnection con = new SqlConnection(connetionstring))
            {
                con.Open();
                using (SqlCommand command = new SqlCommand(query, con))
                using (SqlDataAdapter da = new SqlDataAdapter(command))
                {
                    da.Fill(ChartData);
                }
            }
            StaticSource source = new StaticSource(ChartData);
            DataModel model = new DataModel();
            model.DataSources.Add(source);
            Charts.FunnelChart funnel = new Charts.FunnelChart("first_Funnel_chart");
            funnel.Data.Source = model;
            funnel.Caption.Text = "Visit to purchase analysis";
            funnel.Caption.Text = "Harry's Supermart";
            funnel.SubCaption.Text = "Visit to purchase- Conversion Anallysis for last year";
            funnel.Width.Pixel(600);
            funnel.Height.Pixel(400);
            Literal1.Text = funnel.Render();
        }
    }
}
The .aspx template for the above sample is shown below:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="FunnelChart.aspx.cs" Inherits="FusionChartsVisualisationWebFormsSamples.Samples.FunnelChart" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <script type="text/javascript" src="//cdn.fusioncharts.com/fusioncharts/latest/fusioncharts.js"></script>
    <form id="form1" runat="server">
        <div>
            <asp:Literal ID ="Literal1" runat ="server"></asp:Literal>
        </div>
        <div>
            <input type ="button" value ="Samples" onclick="location.href = 'Index.aspx';" />
        </div>
    </form>
</body>
</html>