Pyramid and Funnel Chart In ASP.Net

Vithal Wadje
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PyramidChartInAsp.net.zip

Background

Sometimes we need to show data in a chart like a Pyramid chart, such as to show quarterly data and on, so by considering the preceding requirement and to introduce the ASP.Net Pyramid and Funnel Chart controls I have decided to write this article.

Let us learn about the ASP.Net chart types Pyramid and Funnel that provide a powerful UI and design quality. So let us start to learn about these chart type controls step-by-step. All the charts are in the System.Web.UI.DataVisualization.Charting namespace.

Chart data is represented using the following points:

X Axis: the horizontal line of the chart termed the X axis
Y Axis: the vertical line of the chart termed the Y axis

Now let us learn about the properties of the Pyramid and Funnel charts.

A Pyramid and Funnel chart type has the following common properties:

AlternetText: Sets the alternate text when the image is not available
Annotation: Stores the chart annotations
AntiAliasing: sets a value that determines whether anti-aliasing is used when text and graphics are drawn
BackGradientStyle: sets the orientation for the background gradient for the Chart control. Also determines whether a gradient is used, the default is None
Backcolor: sets the background color for a chart, the default color is White
BackImage: sets the background image for the chart control.
BackHatchStyle: sets the hatching style for the chart control, the default is None.
Height: Sets the height for the chart control
Width: Sets the width for the chart control
Palette: Sets the style with the color for the chart control, the default style is Chocolate.
PaletteCustomColors: Sets the custom color for the chart control.
Series: Sets the series collection for the chart control
Legends: Sets the series of legends to the chart

Now let us show the preceding explanation with a practical example by creating a simple web application.

Step 1: Create the table for the chart data

Now before creating the application, let us create a table named QuarterwiseSale in a database from where we show the records in the chart, the table has the following fields (shown in the following image):

Now insert some records as listed in the following image into the table:

I hope you have the same type of table and records as above.

Step: 2 Create Web Application

Now create the project using the following:

"Start" - "All Programs" - "Microsoft Visual Studio 2010".
"File" - "New Project" - "C#" - "Empty Project" (to avoid adding a master page).
Provide the project a name such as PyramidAndfunnel or another as you wish and specify the location.
Then right-click on Solution Explorer and select "Add New Item" then select Default.aspx page.
Drag and Drop a Chart control from the ToolBox onto the Default.aspx page.

Now the Default.aspx source code will be as follows:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI.DataVisualization.Charting" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Article by Vithal Wadje</title>
</head>
<body bgcolor="grey">
<form id="form1" runat="server">
<h4 style="color: White;">
Article for C#Corner
</h4>
<asp:Chart ID="Chart1" runat="server">
<Series>
<asp:Series Name="Series1">
</asp:Series>
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea1">
</asp:ChartArea>
</ChartAreas>
</asp:Chart>
</form>
</body>
</html>

Create a function to bind the chart control as in the following:

private void Bindchart()
{
connection();
query = "select *from QuarterwiseSale";//not recommended this i have written just for example,write stored procedure for security
com = new SqlCommand(query, con);
SqlDataAdapter da = new SqlDataAdapter(query, con);
DataSet ds = new DataSet();
da.Fill(ds);
DataTable ChartData=ds.Tables[0];
//storing total rows count to loop on each Record
string[] XPointMember = new string[ChartData.Rows.Count];
int[] YPointMember = new int[ChartData.Rows.Count];
for (int count = 0; count < ChartData.Rows.Count;count++ )
{
//storing Values for X axis
XPointMember[count] = ChartData.Rows[count]["Quarter"].ToString();
//storing values for Y Axis
YPointMember[count] = Convert.ToInt32(ChartData.Rows[count]["SalesValue"]);
}
//binding chart control
Chart1.Series[0].Points.DataBindXY(XPointMember, YPointMember);
//setting Chart type
Chart1.Series[0].ChartType = SeriesChartType.Pyramid;
// Chart1.Series[0].ChartType = SeriesChartType.Funnel;
// Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;
con.Close();
}

Now, call the preceding function on page load as in the following:

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Bindchart();
}
}

The entire code of the default.aspx.cs page will look as follows:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Configuration;
using System.Data;
using System.Web.UI.DataVisualization.Charting;
public partial class _Default : System.Web.UI.Page
{
private SqlConnection con;
private SqlCommand com;
private string constr, query;
private void connection()
{
constr = ConfigurationManager.ConnectionStrings["getconn"].ToString();
con = new SqlConnection(constr);
con.Open();
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
Bindchart();
}
}
private void Bindchart()
{
connection();
query = "select *from QuarterwiseSale";//not recommended this i have written just for example,write stored procedure for security
com = new SqlCommand(query, con);
SqlDataAdapter da = new SqlDataAdapter(query, con);
DataSet ds = new DataSet();
da.Fill(ds);
DataTable ChartData=ds.Tables[0];
//storing total rows count to loop on each Record
string[] XPointMember = new string[ChartData.Rows.Count];
int[] YPointMember = new int[ChartData.Rows.Count];
for (int count = 0; count < ChartData.Rows.Count;count++ )
{
//storing Values for X axis
XPointMember[count] = ChartData.Rows[count]["Quarter"].ToString();
//storing values for Y Axis
YPointMember[count] = Convert.ToInt32(ChartData.Rows[count]["SalesValue"]);
}
//binding chart control
Chart1.Series[0].Points.DataBindXY(XPointMember, YPointMember);
//setting Chart type
Chart1.Series[0].ChartType = SeriesChartType.Pyramid;
// Chart1.Series[0].ChartType = SeriesChartType.Funnel;
// Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;
con.Close();
}
}

We now have the entire logic to bind the chart from the database, let us run the application. The chart will look as follows:

In the preceding chart we saw how the data is properly arranged with the user interactive graphics, now let us set the 3D style enabled as in the following:

Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;

Now the Pyramid chart will look as follows:

Now let us switch to a Funnel chart as in the following:

Chart1.Series[0].ChartType = SeriesChartType.Funnel;

Now run the application and the Funnel type chart will look as follows:

The preceding is the 3D Style Funnel chart. Now let us disable the 3D style as in the following:

Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = false;

Now the Funnel chart will look as follows:

Now from all the preceding explanation we saw how to create and use a Pyramid and Funnel chart.

Notes

Download the Zip file from the attachment for the full source code of the application.
Change the connection string in the web.config file to specify your server location.

Summary

My next article explains another chart type of ASP.Net. I hope this article is useful for all readers, if you have any suggestion then please contact me including beginners also.

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