c#发送电子邮件

c#发送电子邮件

 

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Web.Mail;
namespace Network
{
 /// <summary>
    /// FrmNetwork 的摘要说明。
 /// </summary>
 public class FrmNetwork : System.Windows.Forms.Form
 {
  private System.Windows.Forms.Label label1;
  private System.Windows.Forms.TextBox textBox1;
  private System.Windows.Forms.Label label2;
  private System.Windows.Forms.TextBox textBox2;
  private System.Windows.Forms.TextBox textBox3;
  private System.Windows.Forms.Label label3;
  private System.Windows.Forms.TextBox textBox4;
  private System.Windows.Forms.Label label4;
  private System.Windows.Forms.TextBox textBox5;
  private System.Windows.Forms.Label label5;
  private System.Windows.Forms.Label label6;
  private System.Windows.Forms.ComboBox comboBox1;
  private System.Windows.Forms.ComboBox comboBox2;
  private System.Windows.Forms.Label label7;
  private System.Windows.Forms.Button button1;
  private System.Windows.Forms.Button button2;
  private System.Windows.Forms.RichTextBox richTextBox1;
  private System.Windows.Forms.OpenFileDialog openFileDialog1;
  /// <summary>
  /// 必需的设计器变量。
  /// </summary>
  private System.ComponentModel.Container components = null;

  public FrmNetwork()
  {
   //
   // Windows 窗体设计器支持所必需的
   //
   InitializeComponent();

   //
   // TODO: 在 InitializeComponent 调用后添加任何构造函数代码
   //
  }

  /// <summary>
  /// 清理所有正在使用的资源。
  /// </summary>
  protected override void Dispose( bool disposing )
  {
   if( disposing )
   {
    if (components != null)
    {
     components.Dispose();
    }
   }
   base.Dispose( disposing );
  }

  #region Windows 窗体设计器生成的代码
  /// <summary>
  /// 设计器支持所需的方法 - 不要使用代码编辑器修改
  /// 此方法的内容。
  /// </summary>
  private void InitializeComponent()
  {
   this.label1 = new System.Windows.Forms.Label();
   this.textBox1 = new System.Windows.Forms.TextBox();
   this.label2 = new System.Windows.Forms.Label();
   this.textBox2 = new System.Windows.Forms.TextBox();
   this.textBox3 = new System.Windows.Forms.TextBox();
   this.label3 = new System.Windows.Forms.Label();
   this.textBox4 = new System.Windows.Forms.TextBox();
   this.label4 = new System.Windows.Forms.Label();
   this.textBox5 = new System.Windows.Forms.TextBox();
   this.label5 = new System.Windows.Forms.Label();
   this.label6 = new System.Windows.Forms.Label();
   this.comboBox1 = new System.Windows.Forms.ComboBox();
   this.comboBox2 = new System.Windows.Forms.ComboBox();
   this.label7 = new System.Windows.Forms.Label();
   this.button1 = new System.Windows.Forms.Button();
   this.button2 = new System.Windows.Forms.Button();
   this.richTextBox1 = new System.Windows.Forms.RichTextBox();
   this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
   this.SuspendLayout();
   //
   // label1
   //
   this.label1.Location = new System.Drawing.Point(8, 16);
   this.label1.Name = "label1";
   this.label1.Size = new System.Drawing.Size(80, 16);
   this.label1.TabIndex = 0;
   this.label1.Text = "收件人地址：";
   //
   // textBox1
   //
   this.textBox1.Location = new System.Drawing.Point(88, 8);
   this.textBox1.Name = "textBox1";
   this.textBox1.Size = new System.Drawing.Size(280, 21);
   this.textBox1.TabIndex = 1;
   this.textBox1.Text = "";
   //
   // label2
   //
   this.label2.Location = new System.Drawing.Point(8, 40);
   this.label2.Name = "label2";
   this.label2.Size = new System.Drawing.Size(80, 16);
   this.label2.TabIndex = 2;
   this.label2.Text = "抄送人地址：";
   //
   // textBox2
   //
   this.textBox2.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
   this.textBox2.Location = new System.Drawing.Point(88, 32);
   this.textBox2.Name = "textBox2";
   this.textBox2.Size = new System.Drawing.Size(280, 21);
   this.textBox2.TabIndex = 3;
   this.textBox2.Text = "";
   //
   // textBox3
   //
   this.textBox3.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
   this.textBox3.Location = new System.Drawing.Point(88, 56);
   this.textBox3.Name = "textBox3";
   this.textBox3.Size = new System.Drawing.Size(280, 21);
   this.textBox3.TabIndex = 5;
   this.textBox3.Text = "";
   //
   // label3
   //
   this.label3.Location = new System.Drawing.Point(8, 64);
   this.label3.Name = "label3";
   this.label3.Size = new System.Drawing.Size(80, 16);
   this.label3.TabIndex = 4;
   this.label3.Text = "邮件主题：";
   //
   // textBox4
   //
   this.textBox4.BackColor = System.Drawing.SystemColors.Control;
   this.textBox4.Location = new System.Drawing.Point(88, 80);
   this.textBox4.Name = "textBox4";
   this.textBox4.ReadOnly = true;
   this.textBox4.Size = new System.Drawing.Size(200, 21);
   this.textBox4.TabIndex = 7;
   this.textBox4.Text = "";
   //
   // label4
   //
   this.label4.Location = new System.Drawing.Point(8, 88);
   this.label4.Name = "label4";
   this.label4.Size = new System.Drawing.Size(80, 16);
   this.label4.TabIndex = 6;
   this.label4.Text = "附件：";
   //
   // textBox5
   //
   this.textBox5.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
   this.textBox5.Location = new System.Drawing.Point(88, 104);
   this.textBox5.Name = "textBox5";
   this.textBox5.Size = new System.Drawing.Size(280, 21);
   this.textBox5.TabIndex = 9;
   this.textBox5.Text = "";
   //
   // label5
   //
   this.label5.Location = new System.Drawing.Point(8, 112);
   this.label5.Name = "label5";
   this.label5.Size = new System.Drawing.Size(80, 16);
   this.label5.TabIndex = 8;
   this.label5.Text = "发件人地址：";
   //
   // label6
   //
   this.label6.Location = new System.Drawing.Point(8, 136);
   this.label6.Name = "label6";
   this.label6.Size = new System.Drawing.Size(56, 16);
   this.label6.TabIndex = 10;
   this.label6.Text = "优先级：";
   //
   // comboBox1
   //
   this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
   this.comboBox1.Items.AddRange(new object[] {
                 "正常",
                 "高",
                 "低"});
   this.comboBox1.Location = new System.Drawing.Point(64, 128);
   this.comboBox1.Name = "comboBox1";
   this.comboBox1.Size = new System.Drawing.Size(72, 20);
   this.comboBox1.TabIndex = 11;
   //
   // comboBox2
   //
   this.comboBox2.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
   this.comboBox2.Items.AddRange(new object[] {
                 "文本方式",
                 "HTML方式"});
   this.comboBox2.Location = new System.Drawing.Point(208, 128);
   this.comboBox2.Name = "comboBox2";
   this.comboBox2.Size = new System.Drawing.Size(80, 20);
   this.comboBox2.TabIndex = 13;
   //
   // label7
   //
   this.label7.Location = new System.Drawing.Point(144, 136);
   this.label7.Name = "label7";
   this.label7.Size = new System.Drawing.Size(72, 16);
   this.label7.TabIndex = 12;
   this.label7.Text = "内容格式：";
   //
   // button1
   //
   this.button1.Location = new System.Drawing.Point(288, 128);
   this.button1.Name = "button1";
   this.button1.Size = new System.Drawing.Size(80, 21);
   this.button1.TabIndex = 14;
   this.button1.Text = "发送邮件";
   this.button1.Click += new System.EventHandler(this.button1_Click);
   //
   // button2
   //
   this.button2.Location = new System.Drawing.Point(288, 80);
   this.button2.Name = "button2";
   this.button2.Size = new System.Drawing.Size(80, 21);
   this.button2.TabIndex = 15;
   this.button2.Text = "浏览文件";
   this.button2.Click += new System.EventHandler(this.button2_Click);
   //
   // richTextBox1
   //
   this.richTextBox1.Location = new System.Drawing.Point(8, 152);
   this.richTextBox1.Name = "richTextBox1";
   this.richTextBox1.Size = new System.Drawing.Size(360, 160);
   this.richTextBox1.TabIndex = 16;
   this.richTextBox1.Text = "";
   //
   // Form1
   //
   this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
   this.ClientSize = new System.Drawing.Size(376, 318);
   this.Controls.Add(this.richTextBox1);
   this.Controls.Add(this.button2);
   this.Controls.Add(this.button1);
   this.Controls.Add(this.comboBox2);
   this.Controls.Add(this.label7);
   this.Controls.Add(this.comboBox1);
   this.Controls.Add(this.label6);
   this.Controls.Add(this.textBox5);
   this.Controls.Add(this.label5);
   this.Controls.Add(this.textBox4);
   this.Controls.Add(this.label4);
   this.Controls.Add(this.textBox3);
   this.Controls.Add(this.label3);
   this.Controls.Add(this.textBox2);
   this.Controls.Add(this.label2);
   this.Controls.Add(this.textBox1);
   this.Controls.Add(this.label1);
   this.MaximizeBox = false;
   this.Name = "Form1";
   this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
   this.Text = "演示发送电子邮件";
   this.ResumeLayout(false);

  }
  #endregion

  /// <summary>
  /// 应用程序的主入口点。
  /// </summary>
  [STAThread]
  static void Main()
  {
   Application.Run(new FrmNetwork());
  }

  private void button2_Click(object sender, System.EventArgs e)
  {//浏览文件
   if(this.openFileDialog1.ShowDialog()==DialogResult.OK)
   {
    this.textBox4.Text=this.openFileDialog1.FileName;
   }  
  }

  private void button1_Click(object sender, System.EventArgs e)
  {//发送邮件   
   if(this.richTextBox1.Text.Length<1|this.textBox1.Text.Length<1|this.textBox5.Text.Length<1)
   {
    MessageBox.Show("必须填写收件人地址、发件人地址和内容","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
    return;
   }
   MailMessage MyMessage=new MailMessage();
   MyMessage.Priority=MailPriority.Normal;
   if(this.comboBox1.Text=="高")
    MyMessage.Priority=MailPriority.High;
   else if(this.comboBox1.Text=="低")
    MyMessage.Priority=MailPriority.Low;
   MyMessage.BodyFormat=MailFormat.Text;
   if(this.comboBox2.Text=="HTML方式")
    MyMessage.BodyFormat=MailFormat.Html;
   MyMessage.To=this.textBox1.Text;
   MyMessage.From=this.textBox5.Text;
   MyMessage.Body=this.richTextBox1.Text;
   MyMessage.BodyEncoding=System.Text.Encoding.UTF8;
   MyMessage.Subject=this.textBox3.Text;
   if(this.textBox2.Text!="")
   {
    MyMessage.Cc=this.textBox2.Text;
   }
   if(this.textBox4.Text!="")
   {//发送附件
    MailAttachment MyAttach=new MailAttachment(this.textBox4.Text);
    MyMessage.Attachments.Add(MyAttach);
   }
   try
   {
    SmtpMail.Send(MyMessage);
    MessageBox.Show("邮件发送成功！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
   }
   catch(Exception Err)
   {
    MessageBox.Show(Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
   }  
  }

 
 }
}