how to solved ERROR:-Invalid object name 'Email'.

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.Net.Mail;

using System.Data.SqlClient;

namespace csvfileupload2

{

public partial class multiplemailsending22 : System.Web.UI.Page

{

SqlDataAdapter da;

DataSet ds = new DataSet();

SqlConnection con;

SqlCommand cmd = new SqlCommand();

SqlDataReader read_Email;

protected void Page_Load(object sender, EventArgs e)

{

}

protected void btn1_Click(object sender, EventArgs e)

{

ArrayList list_emails = new ArrayList();

int i = 0;

string email;

string str = "Data Source=ANIRUDDHA-PC;Initial Catalog=sark;Integrated Security=True";

con = new SqlConnection(str);

con.Open();

SqlCommand cmd = new SqlCommand("Select email from Email", con);

SqlDataReader read_Email = cmd.ExecuteReader();

while (read_Email.Read())

{

email = read_Email.GetValue(i).ToString();

list_emails.Add(email); //Add email to a arraylist

i = i + 1 - 1;

}

read_Email.Close();

con.Close(); //Close connection

foreach (string email_to in list_emails)

{

MailMessage mail = new MailMessage();

Attachment attach = new Attachment(fileAttachement.PostedFile.FileName);

mail.To.Add(email_to);

mail.From = new MailAddress("[email protected]");

string Bcc = txtBcc.Text;

string cc = txtcc.Text;

mail.Subject = txtsubject.Text;

mail.Body = txtbody.Text;

SmtpClient smtp = new SmtpClient("SMTP Server");

smtp.Send(mail);

}

}

}

}

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="multiplemailsending22.aspx.cs" Inherits="csvfileupload2.multiplemailsending22" %>