using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Web;
using System.Web.Mail;


namespace SendMail
{
	/// <summary>
	/// Summary description for frmSendMail.
	/// </summary>
	public class frmSendMail : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button btnRemove;
		private System.Windows.Forms.ListBox lstFiles;
		private System.Windows.Forms.Label lblSMTP;
		private System.Windows.Forms.Label lblSubject;
		private System.Windows.Forms.Label lblBcc;
		private System.Windows.Forms.Label lblCc;
		private System.Windows.Forms.Label lblTo;
		private System.Windows.Forms.Label lblFrom;
		private System.Windows.Forms.TextBox txtSubject;
		private System.Windows.Forms.TextBox txtBcc;
		private System.Windows.Forms.TextBox txtCc;
		private System.Windows.Forms.TextBox txtTo;
		private System.Windows.Forms.TextBox txtFrom;
		private System.Windows.Forms.TextBox txtIP;
		private System.Windows.Forms.Button txtAttach;
		private System.Windows.Forms.Button btnSend;
		private System.Windows.Forms.RichTextBox txtBody;
		private System.Windows.Forms.OpenFileDialog ofdAttach;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;
		
		//Create a message object to contain a complete email.
		private MailMessage message;
		
		
		public frmSendMail()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
			
			//Initialize the message object
			message=new MailMessage();
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.btnRemove = new System.Windows.Forms.Button();
			this.lstFiles = new System.Windows.Forms.ListBox();
			this.lblSMTP = new System.Windows.Forms.Label();
			this.lblSubject = new System.Windows.Forms.Label();
			this.lblBcc = new System.Windows.Forms.Label();
			this.lblCc = new System.Windows.Forms.Label();
			this.lblTo = new System.Windows.Forms.Label();
			this.lblFrom = new System.Windows.Forms.Label();
			this.txtSubject = new System.Windows.Forms.TextBox();
			this.txtBcc = new System.Windows.Forms.TextBox();
			this.txtCc = new System.Windows.Forms.TextBox();
			this.txtTo = new System.Windows.Forms.TextBox();
			this.txtFrom = new System.Windows.Forms.TextBox();
			this.txtIP = new System.Windows.Forms.TextBox();
			this.txtAttach = new System.Windows.Forms.Button();
			this.btnSend = new System.Windows.Forms.Button();
			this.txtBody = new System.Windows.Forms.RichTextBox();
			this.ofdAttach = new System.Windows.Forms.OpenFileDialog();
			this.SuspendLayout();
			// 
			// btnRemove
			// 
			this.btnRemove.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnRemove.Location = new System.Drawing.Point(470, 422);
			this.btnRemove.Name = "btnRemove";
			this.btnRemove.Size = new System.Drawing.Size(77, 26);
			this.btnRemove.TabIndex = 37;
			this.btnRemove.Text = "刪除(&R)";
			this.btnRemove.Click += new System.EventHandler(this.btnRemove_Click);
			// 
			// lstFiles
			// 
			this.lstFiles.ItemHeight = 12;
			this.lstFiles.Location = new System.Drawing.Point(86, 388);
			this.lstFiles.Name = "lstFiles";
			this.lstFiles.SelectionMode = System.Windows.Forms.SelectionMode.MultiSimple;
			this.lstFiles.Size = new System.Drawing.Size(375, 52);
			this.lstFiles.TabIndex = 36;
			// 
			// lblSMTP
			// 
			this.lblSMTP.AutoSize = true;
			this.lblSMTP.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblSMTP.Location = new System.Drawing.Point(269, 19);
			this.lblSMTP.Name = "lblSMTP";
			this.lblSMTP.Size = new System.Drawing.Size(77, 16);
			this.lblSMTP.TabIndex = 30;
			this.lblSMTP.Text = "SMTP 服務器";
			// 
			// lblSubject
			// 
			this.lblSubject.AutoSize = true;
			this.lblSubject.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblSubject.Location = new System.Drawing.Point(24, 123);
			this.lblSubject.Name = "lblSubject";
			this.lblSubject.Size = new System.Drawing.Size(29, 16);
			this.lblSubject.TabIndex = 29;
			this.lblSubject.Text = "主題";
			// 
			// lblBcc
			// 
			this.lblBcc.AutoSize = true;
			this.lblBcc.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblBcc.Location = new System.Drawing.Point(24, 97);
			this.lblBcc.Name = "lblBcc";
			this.lblBcc.Size = new System.Drawing.Size(54, 16);
			this.lblBcc.TabIndex = 28;
			this.lblBcc.Text = "密件抄送";
			// 
			// lblCc
			// 
			this.lblCc.AutoSize = true;
			this.lblCc.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblCc.Location = new System.Drawing.Point(24, 71);
			this.lblCc.Name = "lblCc";
			this.lblCc.Size = new System.Drawing.Size(29, 16);
			this.lblCc.TabIndex = 27;
			this.lblCc.Text = "抄送";
			// 
			// lblTo
			// 
			this.lblTo.AutoSize = true;
			this.lblTo.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblTo.Location = new System.Drawing.Point(24, 45);
			this.lblTo.Name = "lblTo";
			this.lblTo.Size = new System.Drawing.Size(42, 16);
			this.lblTo.TabIndex = 26;
			this.lblTo.Text = "收件人";
			// 
			// lblFrom
			// 
			this.lblFrom.AutoSize = true;
			this.lblFrom.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.lblFrom.Location = new System.Drawing.Point(24, 19);
			this.lblFrom.Name = "lblFrom";
			this.lblFrom.Size = new System.Drawing.Size(42, 16);
			this.lblFrom.TabIndex = 25;
			this.lblFrom.Text = "發件人";
			// 
			// txtSubject
			// 
			this.txtSubject.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.txtSubject.Location = new System.Drawing.Point(86, 121);
			this.txtSubject.Name = "txtSubject";
			this.txtSubject.Size = new System.Drawing.Size(461, 20);
			this.txtSubject.TabIndex = 24;
			this.txtSubject.Text = "";
			// 
			// txtBcc
			// 
			this.txtBcc.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.txtBcc.Location = new System.Drawing.Point(86, 95);
			this.txtBcc.Name = "txtBcc";
			this.txtBcc.Size = new System.Drawing.Size(461, 20);
			this.txtBcc.TabIndex = 23;
			this.txtBcc.Text = "";
			// 
			// txtCc
			// 
			this.txtCc.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.txtCc.Location = new System.Drawing.Point(86, 69);
			this.txtCc.Name = "txtCc";
			this.txtCc.Size = new System.Drawing.Size(461, 20);
			this.txtCc.TabIndex = 22;
			this.txtCc.Text = "";
			// 
			// txtTo
			// 
			this.txtTo.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.txtTo.Location = new System.Drawing.Point(86, 43);
			this.txtTo.Name = "txtTo";
			this.txtTo.Size = new System.Drawing.Size(461, 20);
			this.txtTo.TabIndex = 21;
			this.txtTo.Text = "";
			// 
			// txtFrom
			// 
			this.txtFrom.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.txtFrom.Location = new System.Drawing.Point(86, 17);
			this.txtFrom.Name = "txtFrom";
			this.txtFrom.Size = new System.Drawing.Size(173, 20);
			this.txtFrom.TabIndex = 20;
			this.txtFrom.Text = "";
			// 
			// txtIP
			// 
			this.txtIP.Location = new System.Drawing.Point(365, 17);
			this.txtIP.Name = "txtIP";
			this.txtIP.Size = new System.Drawing.Size(182, 21);
			this.txtIP.TabIndex = 19;
			this.txtIP.Text = "";
			// 
			// txtAttach
			// 
			this.txtAttach.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.txtAttach.Location = new System.Drawing.Point(470, 388);
			this.txtAttach.Name = "txtAttach";
			this.txtAttach.Size = new System.Drawing.Size(77, 26);
			this.txtAttach.TabIndex = 33;
			this.txtAttach.Text = "附件(&A)";
			this.txtAttach.Click += new System.EventHandler(this.txtAttach_Click);
			// 
			// btnSend
			// 
			this.btnSend.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnSend.Location = new System.Drawing.Point(86, 457);
			this.btnSend.Name = "btnSend";
			this.btnSend.Size = new System.Drawing.Size(77, 25);
			this.btnSend.TabIndex = 32;
			this.btnSend.Text = "發送(&S)";
			this.btnSend.Click += new System.EventHandler(this.btnSend_Click);
			// 
			// txtBody
			// 
			this.txtBody.Location = new System.Drawing.Point(86, 155);
			this.txtBody.Name = "txtBody";
			this.txtBody.Size = new System.Drawing.Size(461, 224);
			this.txtBody.TabIndex = 31;
			this.txtBody.Text = "";
			// 
			// ofdAttach
			// 
			this.ofdAttach.Multiselect = true;
			// 
			// frmSendMail
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(556, 487);
			this.Controls.Add(this.btnRemove);
			this.Controls.Add(this.lstFiles);
			this.Controls.Add(this.lblSMTP);
			this.Controls.Add(this.lblSubject);
			this.Controls.Add(this.lblBcc);
			this.Controls.Add(this.lblCc);
			this.Controls.Add(this.lblTo);
			this.Controls.Add(this.lblFrom);
			this.Controls.Add(this.txtSubject);
			this.Controls.Add(this.txtBcc);
			this.Controls.Add(this.txtCc);
			this.Controls.Add(this.txtTo);
			this.Controls.Add(this.txtFrom);
			this.Controls.Add(this.txtIP);
			this.Controls.Add(this.txtAttach);
			this.Controls.Add(this.btnSend);
			this.Controls.Add(this.txtBody);
			this.Name = "frmSendMail";
			this.Text = "發送郵件";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new frmSendMail());
		}
		//Compose the email and then send it
		private void btnSend_Click(object sender, System.EventArgs e)
		{
			//Check if SMTP Server IP address is specified.
			//If yes, compose email
			//else display appropriate message
			if (txtIP.Text.Length >0) 
			{
				//Specify the SMTP server to use 
				//to send emails
				
				SmtpMail.SmtpServer =txtIP.Text.Trim() ;
				
				//Compose email
				message.From =txtFrom.Text ;
				message.To =txtTo.Text ;
				message.Cc =txtCc.Text ;
				message.Bcc =txtBcc.Text ;
				message.Subject =txtSubject.Text ;
				message.Body=txtBody.Text;

				//Add attachements to the email if any
				message.Attachments.Clear();		
				for(int index=0;index<lstFiles.Items.Count;index++)
				{
					MailAttachment mAttach=new MailAttachment(lstFiles.Items[index].ToString());
					message.Attachments.Add(mAttach);
				}
						
				try
				{
					MessageBox.Show (message.From.ToString());
                    MessageBox.Show (message.To.ToString());
					MessageBox.Show (message.Subject.ToString());
					
					//Send the composed email
				SmtpMail.Send(message.From,message.To,message.Subject,message.Body);

					//Reset the form
					txtFrom.Text="";
					txtTo.Text="";
					txtCc.Text="";
					txtBcc.Text="";
					txtSubject.Text="";
					txtBody.Text="";
					lstFiles.Items.Clear();
				}
				catch (Exception excep)
				{
					MessageBox.Show(excep.Message.ToString() );
					MessageBox.Show(excep.StackTrace.ToString() );
					//Display appropriate message if
					//From address is invalid
					//MessageBox.Show("Enter a valid From email address");
					return;
				}
				//Visually indicate that the email was sent
				MessageBox.Show("您的郵件已發送");
			}
			else
			{
				MessageBox.Show("請輸入 SMTP 服務器 IP 地址");

			}
		}

		

		private void txtAttach_Click(object sender, System.EventArgs e)
		{
			//Display a dialog box to select
			//files to attach to the email.
			//Once selected, display the selected 
			//files in a listbox
			if(ofdAttach.ShowDialog()==DialogResult.OK)
			{
				string [] files=new string[ofdAttach.FileNames.Length];
				for(int index=0;index<ofdAttach.FileNames.Length;index++)
				{
					lstFiles.Items.Add(ofdAttach.FileNames[index].ToString());
				}
            }			
		}

		private void btnRemove_Click(object sender, System.EventArgs e)
		{
			//Remove the selected attachment from the list
			lstFiles.Items.RemoveAt(lstFiles.SelectedIndex);
			
		}

		
	}

}