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Send Multiple Email at the same time in ASP.NET with Attached File .

Posted by Sapna Malik Articles | Learn .NET September 09, 2009
Send Multiple Email with Attached File at the same time and SMTP using ASP.NET and C#.
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In this Article we can Send Multiple Email with the Attachment File at the same time and SMPT using ASP.NET and C#.


The .NET Framework makes the task of sending email from a web page easy. In this article send the multiple email throw the database.


And namespace is

using System.Net.Mail;

using System.Data.SqlClient;


This is ASPX code: -


<%
@ Page Language="C#" AutoEventWireup="true" CodeFile="MultipleMailSend.aspx.cs"

    Inherits="sapnamalik_MultipleMailSend" %>

<!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>Multiple Email Sending</title>

</head>

<body>

<form id="form1" runat="server">

<div>

<table id="tblemail" runat="server" cellpadding="0" cellspacing="0" width="100%" bgcolor="#ffccff">

<tr>

<td>

<fieldset>

<legend style="border: none; font-weight: bold; color: #660099; font-size: 12pt;

font-family: Segoe UI">Send Your Email&nbsp;</legend>

<table id="tblbody" runat="server" cellpadding="2" cellspacing="2" width="100%">

<tr>

<td colspan="2" align="center">

Fields marked with an asterisk (<asp:Label ID="Label1" runat="server" CssClass="redtext" Text="*"></asp:Label>)are mandatory

</td>

</tr>

<tr>

<td colspan="2" align="center">

<asp:Label ID="lblmail" CssClass="redtext" runat="server"></asp:Label></td>

</tr>

<tr>

<td width="10%" align="right">

<asp:Label ID="lblfrom" runat="server" Text="From:"></asp:Label>

<asp:Label ID="lblredstar3" runat="server" CssClass="redtext" Text="*"></asp:Label>

</td>

<td align="left" width="90%">

<asp:TextBox ID="txtemailfrom" Width="50%" runat="server"></asp:TextBox>

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" CssClass="redtext" Display="static" ControlToValidate="txtemailfrom" ErrorMessage="Enter valid Email Address" ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>

</td>

</tr>

<tr>

<td width="10%" align="right">

<asp:Label ID="lblsubject" runat="server" Text="Subject:"></asp:Label>

<asp:Label ID="lblredstar4" runat="server" CssClass="redtext" Text="*"></asp:Label>

</td>

<td align="left" width="90%">

<asp:TextBox ID="txtsubject" Width="50%" runat="server"></asp:TextBox>

</td>

</tr>

<tr>

<td width="10%" align="right">

<asp:Label ID="lblbody" runat="server" Text="Body:"></asp:Label>

<asp:Label ID="lblredstar5" runat="server" CssClass="redtext" Text="*"></asp:Label>

</td>

<td align="left" width="90%">

<asp:TextBox ID="txtbody" Width="50%" runat="server" TextMode="MultiLine"></asp:TextBox>

</td>

</tr>

<tr>

<td width="10%" align="right">

<asp:Label ID="lblAttachFile" runat="server" Text="File to send:"></asp:Label>

</td>

<td align="left" width="90%">

<input type="file" id="fileAttachement" runat="server" name="fileAttachement" />

</td>

</tr>

<tr>

<td>

</td>

<td align="left">

<asp:Button ID="btnSendEmail" runat="server" Width="60px" Text="Send Mail" OnClick="btnSendEmail_Click" />&nbsp;

</td>

</tr>

</table>

</fieldset>

</td>

</tr>

</table>

</div>

</form>

</body>

</html>


This is .CS code: -


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.Data.SqlClient;

using System.Net.Mail;

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

{

    DataSet ds = new DataSet();

    SqlCommand cmd = new SqlCommand();

    SqlConnection con;

    protected void Page_Load(object sender, EventArgs e)

    {

    }

    protected void btnSendEmail_Click(object sender, EventArgs e)

    {

        if (txtemailfrom.Text == "" || txtsubject.Text == "" || txtbody.Text == "")

        {

            lblmail.Text = "Please fill all mandatory fields.";

            lblmail.Visible = true;

            return;

        }

        SmtpClient smtpClient = new SmtpClient();

        MailMessage mailMessage = new MailMessage();

        con = new SqlConnection(ConfigurationManager.AppSettings["connect"]);

        ArrayList list_emails = new ArrayList();

        int i = 0;

        string email;

        con.Open();

        SqlCommand cmd = new SqlCommand("Select EmailId from Employee", 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)

        {

          if (fileAttachement.PostedFile != null)

            {

                HttpPostedFile AttachFile = fileAttachement.PostedFile;

                int AttachFileLength = AttachFile.ContentLength;

                if (AttachFileLength > 0)

                {

                    FileName = Path.GetFileName(fileAttachement.PostedFile.FileName);

                }

            }

            MailAddress fromAddress = new MailAddress(txtemailfrom.Text);

            mailMessage.From = fromAddress;

            mailMessage.Subject = txtsubject.Text;

            mailMessage.Body = txtbody.Text;

            string Body = "";

            Body += '\n' + "From:" + txtemailfrom.Text;

            Body += '\n' + "";

            Body += '\n' + "Subject:" + txtsubject.Text;

            Body += '\n' + "";

            Body += '\n' + txtbody.Text;

            mailMessage.IsBodyHtml = true;

            mailMessage.Body = Body;

            smtpClient.Host = "localHost";

            smtpClient.Send(mailMessage);

            lblmail.Visible = true;

            lblmail.Text = "Your mail has been sent successfully";

            tblemail.Visible = true;

        }

        txtemailfrom.Text = "";

        txtsubject.Text = "";

        txtbody.Text = "";

    }

}

<!--[if !supportEmptyParas]--> <!--[endif]-->


<!--[if !vml]-->

<!--[endif]-->



When we will run the application then the output.

mail.jpg

 

Article Extensions
Contents added by Mahesh Sharma on Aug 07, 2013
Contents added by krishna k on Jun 16, 2012
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