Challa QlikView, Biztalk, DotNet and MSBI FAQ's Blog: 26 September 2011

Monday, September 26, 2011

Send Mail with multiple attachments in asp.net

Use below code to Send multiple attachments in Email

.ASPX

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="SendMail.aspx.cs" Inherits="SendMail" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
    <title></title>

</head>
<body>
    <table cellspacing="0" cellpadding="3" width="100%" bgcolor="navy" border="0">
        <tr>
            <td align="center">
                <span class="titl">ASP.NET Email</span>
            </td>
        </tr>
    </table>
    <br />
    <div align="center">
        <asp:Label ID="lblMessage" runat="server" Font-Names="Arial" Width="540" Visible="False"></asp:Label></div>
    <br />
    <div align="center">
        <form id="Form1" name="form2" method="post" enctype="multipart/form-data" runat="server">
        <table cellspacing="0" cellpadding="4" bgcolor="navy" border="0">
            <tr>
                <td>
                    <table cellspacing="3" cellpadding="4" width="540" bgcolor="white">
                        <tr>
                            <td valign="middle" align="right" width="80">
                                From:
                            </td>
                            <td>
                                <asp:TextBox ID="txtSender" TabIndex="1" runat="server" MaxLength="100" Width="386px"
                                    CssClass="width386" Font-Names="Arial"></asp:TextBox>
                            </td>
                        </tr>
                        <tr>
                            <td valign="middle" align="right" width="80">
                                To:
                            </td>
                            <td>
                                <asp:TextBox ID="txtReceiver" TabIndex="1" runat="server" MaxLength="100" Width="386px"
                                    CssClass="width386" Font-Names="Arial"></asp:TextBox>
                            </td>
                        </tr>
                        <tr>
                            <td valign="middle" align="right">
                                Subject:
                            </td>
                            <td>
                                <asp:TextBox ID="txtSubject" TabIndex="2" runat="server" MaxLength="200" Width="386px"
                                    CssClass="width386" Font-Names="Arial"></asp:TextBox>
                            </td>
                        </tr>
                        <tr>
                            <td valign="middle" align="right">
                                Format:
                            </td>
                            <td>
                                <asp:RadioButtonList ID="rblMailFormat" TabIndex="3" runat="server" RepeatColumns="2"
                                    RepeatDirection="Horizontal">
                                    <asp:ListItem Value="text" Selected="True">text</asp:ListItem>
                                    <asp:ListItem Value="html">html</asp:ListItem>
                                </asp:RadioButtonList>
                            </td>
                        </tr>
                        <tr>
                            <td valign="top" align="right">
                                Message:
                            </td>
                            <td height="84">
                                <p>
                                    <asp:TextBox ID="txtBody" TabIndex="4" runat="server" Columns="40" Rows="5" TextMode="MultiLine"
                                        Width="451px" CssClass="width386" Font-Names="Arial"></asp:TextBox></p>
                            </td>
                        </tr>
                        <tr>
                            <td>
                            </td>
                            <td>
                                <asp:FileUpload ID="FileUpload1" runat="server" style="margin-left: 0px"
                                    Width="445px" />
                            </td>
                        </tr>
                        <tr>
                            <td align="center" colspan="2">
                                <asp:Button ID="btnSend" TabIndex="9" runat="server" Width="100px" Text="Send" OnClick="btnSend_Click">
                                </asp:Button>
                            </td>
                        </tr>
                    </table>
                </td>
            </tr>
        </table>
        </form>
        <h1>
        </h1>
    </div>
</body>
</html>

.ASPX.CS

using System;
using System.Drawing;
using System.Net.Mail;

public partial class SendMail : System.Web.UI.Page
{
    protected void btnSend_Click(object sender, EventArgs e)
    {
        try
        {
            // Create a new blank MailMessage
            MailMessage email = new MailMessage();

            // Set the properties of the MailMessage to the values on the form
            if (rblMailFormat.SelectedItem.Text == "text")
                email.IsBodyHtml = false;
            else
                email.IsBodyHtml = true;

            email.From = new MailAddress(txtSender.Text);
            email.To.Add(new MailAddress(txtReceiver.Text));
            email.Subject = txtSubject.Text;
            email.Body = txtBody.Text;
            string strFileName = FileUpload1.PostedFile.FileName;
            //adding attachements from browse & upload
            Attachment attach = new Attachment(strFileName);
            // Follow the same trick for multiple attachment
            email.Attachments.Add(attach);
            //Set the SMTP server
            SmtpClient smtp = new SmtpClient("localhost");
            // send the email
            smtp.Send(email);

            // Reset the form
            txtSender.Text = "";
            txtReceiver.Text = "";
            txtSubject.Text = "";
            txtBody.Text = "";

            // Dispaly a friendly message telling the user
            // his email has been sent
            lblMessage.Visible = true;
            lblMessage.ForeColor = Color.Black;
            lblMessage.Text = "Your email has been sent";
        }
        catch (Exception ex)
        {
            lblMessage.Visible = true;
            lblMessage.ForeColor = Color.Red;
            lblMessage.Text = ex.ToString();
        }
    }
}

How do I change the SMTP port number dynamically in asp.net

Use below method to set dynamic port while sending the email using SMTP

public static void SendMailwithDynamicPort(string strSmtpHost, int strPort, string strMessageBody, string strFrom, string strTo, string strSubject)
        {
            // Create and configure the smtp client
            SmtpClient smtpClient = new SmtpClient();
            if (strSmtpHost != null && strSmtpHost.Length > 0)
            {
                smtpClient.Host = strSmtpHost;
            }
            smtpClient.Port = strPort; // you can read from config
            smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;

            MailMessage mailMessage = new MailMessage();
            mailMessage.Body = strMessageBody;
            mailMessage.From = new MailAddress(strFrom);
            mailMessage.To.Add(strTo);
            mailMessage.Subject = strSubject;
            mailMessage.Priority = MailPriority.Normal;//to set the email property

            smtpClient.Send(mailMessage);
        }

or through Web.Config also we can set port number

<configuration>
  <!-- Add the email settings to the <system.net> element -->
  <system.net>
    <mailSettings>
      <smtp>
        <network 
             host="relayServerHostname" 
             port="portNumber"
             userName="username"
             password="password" />
      </smtp>
    </mailSettings>
  </system.net>

  <system.web>
    ...
  </system.web>
</configuration>

How to get the users IP those who are accessing your website using asp.net

Use below code to get the IP of your website users:

<%@ Page Language="C#" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Client IP...</title>
    <meta http-equiv="Expires" content="-1">
    <meta http-equiv="Cache-Control" content="no-cache">
    <meta http-equiv="Pragma" content="no-cache">

<%
            string _strClientIP = string.Empty;
            string[] _strforwardedIpsList;

            // Get exact IP address if proxy available
            string _strServerVariable = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

            if (!string.IsNullOrEmpty(_strServerVariable))
            {
                _strforwardedIpsList = _strServerVariable.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
                _strClientIP = _strforwardedIpsList[_strforwardedIpsList.Length - 1];
            }
            else
            {
                // Get Proxy IP address
                _strClientIP = HttpContext.Current.Request.UserHostAddress;

                if (string.IsNullOrEmpty(_strClientIP))
                    _strClientIP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
            }

            Response.Write(_strClientIP);

%>
</head>
<body>
    <form id="testForm">
    </form>
</body>
</html>

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Monday, September 26, 2011

Send Mail with multiple attachments in asp.net

How do I change the SMTP port number dynamically in asp.net

How to get the users IP those who are accessing your website using asp.net

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