using System;

using System.Data;

using System.Configuration;

using System.Collections;

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.IO;

using System.Data;

using System.Data.SqlClient;

namespace piechart10

public partial class _Default : System.Web.UI.Page

SqlConnection con = new SqlConnection("Data Source=D4TELLIANT\\SQLEXPRESS;Integrated Security=SSPI;Initial Catalog=db1;");

SqlCommand cmd, cmd1;

String quer, qu;

protected void Page_Load(object sender, EventArgs e)

if (!IsPostBack)

qu = "delete from piee2";

cmd1 = new SqlCommand(qu, con);

int i;

try

for (i = 0; i <= ListBox1.Items.Count; i++)

quer = "insert into piee2 values('" + ListBox1.Items[i] + "','" + ListBox2.Items[i] + "')";

cmd = new SqlCommand(quer, con);

catch (Exception)

Response.Write("updated");

public void driinf()

DriveInfo[] di = DriveInfo.GetDrives();

foreach (DriveInfo item in di)

private void CreateChart()

SqlDataAdapter da = new SqlDataAdapter("select dirname,size from piee2", con);

DataSet ds = new DataSet();

da.Fill(ds, "piee2");

DataTable dt = new DataTable();

DataColumn dc = new DataColumn();

dc.ColumnName = "dirname";

dc.ColumnName = "size";

Chart1.Visible = true;

Chart1.Series["Series1"].XValueMember = "dirname";

Chart1.Series["Series1"].YValueMembers = "size";

Chart1.Legends.Add("legend1");

Chart1.Series["Series1"]["PointWidth"] = "0.4";

Chart1.Series["Series1"].IsValueShownAsLabel = true;

Chart1.Series["Series1"]["PieLabelStyle"] = "right";

Chart1.Series["Series1"]["DrawingStyle"] = "rectangle";

ListBox1.Visible = false;

ListBox2.Visible = false;

you have to use third party feature for that you can download DLL for that from web and implement it.