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Introduction:

Here I will explain
asp.net 4.0 chart control examples in c# with database or chart control in asp.net example with database using c#, vb.net or asp.net pie chart example in  c#, vb.net with database.

Description:

In previous articles I explained jQuery Google pie chart example in asp.net,
Ajax Pie chart example in asp.net with database, jQuery change image on mouse over, jQuery show alert message before leaving from webpage, jQuery drag and drop gridview rows in asp.net and many articles related to jQuery, Ajax and asp.net. Now I explain how to create asp.net chart control from database using c#, vb.net.

First design table one table countrydetails in your database like as shown below

Column Name
Data Type
Allow Nulls
ID
Int(set identity property=true)
No
name
Varchar(50)
no
value
Int
no

Once we create table we need to enter some dummy data for our application purpose
To use asp.net chart controls first create one new web application after that drag and drop chart control from toolbox to your page like as shown below


Once you drag and drop chart control in your page set properties to chart control as per your requirement like as shown below


<%@ 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>
<title>Asp.Net Chart Example with database</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Chart ID="Chart1" runat="server" >
<Legends>
<asp:Legend Alignment="Center" Docking="Bottom" Name="Dotnet Chart Example" />
</Legends>
<Series>
<asp:Series Name="Series1" />
</Series>
<ChartAreas>
<asp:ChartArea Name="ChartArea1" />
</ChartAreas>
</asp:Chart>
</div>
</form>
</body>
</html>
C# Code

In code behind add the following namespaces


using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.UI.DataVisualization.Charting;
After adding namespaces write the following code in page load


protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
DataTable dt = new DataTable();
using (SqlConnection con = new SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB"))
{
con.Open();
SqlCommand cmd = new SqlCommand("select name,total=value from countrydetails order by total desc", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
con.Close();
}
string []x=new string[dt.Rows.Count];
int [] y = new int[dt.Rows.Count];
for(int i=0;i<dt.Rows.Count;i++)
{
x[i] = dt.Rows[i][0].ToString();
y[i] = Convert.ToInt32(dt.Rows[i][1]);
}
Chart1.Series[0].Points.DataBindXY(x,y);
}
}
VB.NET Code


Imports System.Data
Imports System.Data.SqlClient
Imports System.Web.UI.DataVisualization.Charting

Partial Class VBCode
Inherits System.Web.UI.Page
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
If Not IsPostBack Then
Dim dt As New DataTable()
Using con As New SqlConnection("Data Source=SureshDasari;Integrated Security=true;Initial Catalog=MySampleDB")
con.Open()
Dim cmd As New SqlCommand("select name,total=value from countrydetails order by total desc", con)
Dim da As New SqlDataAdapter(cmd)
da.Fill(dt)
con.Close()
End Using
Dim x As String() = New String(dt.Rows.Count - 1) {}
Dim y As Integer() = New Integer(dt.Rows.Count - 1) {}
For i As Integer = 0 To dt.Rows.Count - 1
x(i) = dt.Rows(i)(0).ToString()
y(i) = Convert.ToInt32(dt.Rows(i)(1))
Next
Chart1.Series(0).Points.DataBindXY(x, y)
End If
End Sub
End Class
Once you complete coding open your web.config file that will contain code like as shown below (Note: no need to write any code in web.config file once we drag and drop chart control automatically this code will added to your web.config file)


<configuration>
<appSettings>
<add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" />
</appSettings>
<system.webServer>
<handlers>
<remove name="ChartImageHandler" />
<add name="ChartImageHandler" preCondition="integratedMode" verb="GET,HEAD,POST"
path="ChartImg.axd" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</handlers>
</system.webServer>
<system.web>
<httpHandlers>
<add path="ChartImg.axd" verb="GET,HEAD,POST" type="System.Web.UI.DataVisualization.Charting.ChartHttpHandler, System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
validate="false" />
</httpHandlers>
<pages>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI.DataVisualization.Charting"
assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
</controls>
</pages>
<compilation debug="true" targetFramework="4.0">
<assemblies>
<add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web.DataVisualization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</assemblies>
</compilation>
</system.web>
</configuration>
Demo


Download Sample Code Attached

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7 comments :

praveen kumar said...

hello suresh garu.. thanks...

some times overlapping the country names.. how to set......?

Gurunatha Dogi said...

Great Article @Suresh.....i was actually looking for chart control examples in c-sharp and found on your website...really helped thanks

Dot Net Questions said...

Good Topic

Parvesh said...

Really helps a lot

Torsten said...

Wow. Lots of detailed info that could really help! Cheers!

Torsten @ MightyTravels

M John Batcha said...

Very good article and it's working

Sudhakar Anna said...

Very good article

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