using System;
using System.Data;
using System.Configuration;
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.Collections;
using System.IO;
using System.Text;
using System.Net.Mail;


/// 

/// Summary description for SendEmail
/// 

/// 

public class SendEmail
{
    #region Private Fields

    private string host = string.Empty;
    private int port = 0;
    private string username = string.Empty;
    private string pwd = string.Empty;
    private string fromAddress = string.Empty;
    private string fromDisplayName = string.Empty;
    private string bodyMsg = string.Empty;
    private string subject = string.Empty;
    private Hashtable toAddressHash;
    private ArrayList arrCC;
    private ArrayList arrBCC;
    private string path = string.Empty;

    #endregion

    #region Public Properties

    public string Host
    {
        set
        {
            host = value;
        }
    }
    public int Port
    {
        set
        {
            port = value;
        }
    }

    public string Username
    {
        set
        {
            username = value;
        }
    }
    public string Password
    {
        set
        {
            pwd = value;
        }
    }
    public string FromAddress
    {
        set
        {
            fromAddress = value;
        }
    }
    public string FromDisplayName
    {
        set
        {
            fromDisplayName = value;
        }
    }
    public string Message
    {
        set
        {
            bodyMsg = value;
        }
    }
    public string Subject
    {
        set
        {
            subject = value;
        }
    }
    public Hashtable ToAddress
    {
        set
        {
            toAddressHash = new Hashtable();
            toAddressHash = value;
        }
    }
    public ArrayList CC
    {
        set
        {
            arrCC = new ArrayList();
            arrCC = value;
        }
    }
    public ArrayList BCC
    {
        set
        {
            arrBCC = new ArrayList();
            arrBCC = value;
        }
    }
    public string Path
    {
        set
        {
            path = value;
        }
    }
    #endregion

    public SendEmail()
    {
        //
        // TODO: Add constructor logic here
        //
    }

    //  To Send Email:
    //  Input Parameters    :   Hostname,Port,Username,Password,FromAddress,DisplayName of the FromAddress,Message to be sent in the body section of the email,Subject of the email,Hashtable containing ToAddresses and the corresponding Displaynames,ArrayList containg CarbonCopy Addresses, ArrayList containg Blind CarbonCopy Adrressses,Attachment Pathname.
    //  Returns nothing.

    public void EmailAlert()
    {
        try
        {
            SmtpClient client = new SmtpClient(host, port);

            if (username != "" && pwd != "")
            {
                System.Net.NetworkCredential myCache = new System.Net.NetworkCredential(username, pwd);
                client.Credentials = myCache;
            }

            MailMessage message = new MailMessage();
            message.From = new MailAddress(fromAddress, fromDisplayName);
            if (toAddressHash != null)
            {
                if (toAddressHash.Count > 0)
                {
                    foreach (string key in toAddressHash.Keys)
                    {
                        message.To.Add(new MailAddress(key, toAddressHash[key].ToString()));
                    }
                }
            }
            if (arrCC != null)
            {
                if (arrCC.Count > 0)
                {
                    foreach (string CCaddress in arrCC)
                    {
                        message.CC.Add(CCaddress);
                    }
                }
            }
            if (arrBCC != null)
            {
                if (arrBCC.Count > 0)
                {
                    foreach (string BCCaddress in arrBCC)
                    {
                        message.Bcc.Add(BCCaddress);
                    }
                }
            }
            if (bodyMsg != "")
            {
                message.Body = bodyMsg;
            }
            if (subject != "")
            {
                message.Subject = subject;
            }

            message.DeliveryNotificationOptions = DeliveryNotificationOptions.OnFailure;
            message.Priority = MailPriority.Normal;

            if (path != "")
            {
                Attachment attachFile = new Attachment(path);
                message.Attachments.Add(attachFile);
            }

            client.DeliveryMethod = SmtpDeliveryMethod.Network;
            client.Send(message);
            message.Dispose();
        }
        catch (Exception ex)
        {
            HttpContext.Current.Response.Write(ex.Message.ToString());
        }
    }
}