form1.cs

C#网络实例.里面有很多很实用的C#范例

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


namespace server
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.OpenFileDialog openFileDialog1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		private MailMessage aa;
		private MailAttachment bb;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.GroupBox groupBox2;
		private System.Windows.Forms.RichTextBox richTextBox1;
		private System.Windows.Forms.TextBox textBox5;
		private System.Windows.Forms.GroupBox groupBox3;
		private System.Windows.Forms.RadioButton radioButton1;
		private System.Windows.Forms.RadioButton radioButton2;
		private System.Windows.Forms.RadioButton radioButton3;

		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();
			aa=new MailMessage();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <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.button1 = new System.Windows.Forms.Button();
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.textBox5 = new System.Windows.Forms.TextBox();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.label5 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.openFileDialog1 = new System.Windows.Forms.OpenFileDialog();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.groupBox2 = new System.Windows.Forms.GroupBox();
			this.richTextBox1 = new System.Windows.Forms.RichTextBox();
			this.groupBox3 = new System.Windows.Forms.GroupBox();
			this.radioButton3 = new System.Windows.Forms.RadioButton();
			this.radioButton2 = new System.Windows.Forms.RadioButton();
			this.radioButton1 = new System.Windows.Forms.RadioButton();
			this.groupBox1.SuspendLayout();
			this.groupBox2.SuspendLayout();
			this.groupBox3.SuspendLayout();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(56, 360);
			this.button1.Name = "button1";
			this.button1.TabIndex = 0;
			this.button1.Text = "发送";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
																					this.textBox5,
																					this.textBox4,
																					this.textBox3,
																					this.textBox2,
																					this.label5,
																					this.label4,
																					this.label3,
																					this.label2,
																					this.textBox1,
																					this.label1});
			this.groupBox1.Location = new System.Drawing.Point(8, 8);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(416, 144);
			this.groupBox1.TabIndex = 2;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "邮件属性";
			// 
			// textBox5
			// 
			this.textBox5.Location = new System.Drawing.Point(104, 112);
			this.textBox5.Name = "textBox5";
			this.textBox5.Size = new System.Drawing.Size(296, 21);
			this.textBox5.TabIndex = 5;
			this.textBox5.Text = "";
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(104, 88);
			this.textBox4.Name = "textBox4";
			this.textBox4.Size = new System.Drawing.Size(296, 21);
			this.textBox4.TabIndex = 4;
			this.textBox4.Text = "";
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(104, 64);
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(296, 21);
			this.textBox3.TabIndex = 3;
			this.textBox3.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(104, 40);
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(296, 21);
			this.textBox2.TabIndex = 2;
			this.textBox2.Text = "";
			// 
			// label5
			// 
			this.label5.Location = new System.Drawing.Point(16, 112);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(80, 23);
			this.label5.TabIndex = 0;
			this.label5.Text = "主题：";
			// 
			// label4
			// 
			this.label4.Location = new System.Drawing.Point(16, 88);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(80, 23);
			this.label4.TabIndex = 0;
			this.label4.Text = "发件人地址：";
			// 
			// label3
			// 
			this.label3.Location = new System.Drawing.Point(16, 64);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(80, 23);
			this.label3.TabIndex = 0;
			this.label3.Text = "暗送：";
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(16, 40);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(80, 23);
			this.label2.TabIndex = 0;
			this.label2.Text = "抄送：";
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(104, 16);
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(296, 21);
			this.textBox1.TabIndex = 1;
			this.textBox1.Text = "";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(16, 16);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(80, 23);
			this.label1.TabIndex = 0;
			this.label1.Text = "收件人地址：";
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(224, 360);
			this.button2.Name = "button2";
			this.button2.TabIndex = 0;
			this.button2.Text = "添加附件";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.Location = new System.Drawing.Point(392, 360);
			this.button3.Name = "button3";
			this.button3.TabIndex = 0;
			this.button3.Text = "清除附件";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// groupBox2
			// 
			this.groupBox2.Controls.AddRange(new System.Windows.Forms.Control[] {
																					this.richTextBox1});
			this.groupBox2.Location = new System.Drawing.Point(8, 160);
			this.groupBox2.Name = "groupBox2";
			this.groupBox2.Size = new System.Drawing.Size(528, 184);
			this.groupBox2.TabIndex = 4;
			this.groupBox2.TabStop = false;
			this.groupBox2.Text = "邮件内容";
			// 
			// richTextBox1
			// 
			this.richTextBox1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.richTextBox1.Location = new System.Drawing.Point(3, 17);
			this.richTextBox1.Name = "richTextBox1";
			this.richTextBox1.Size = new System.Drawing.Size(522, 164);
			this.richTextBox1.TabIndex = 3;
			this.richTextBox1.Text = "";
			// 
			// groupBox3
			// 
			this.groupBox3.Controls.AddRange(new System.Windows.Forms.Control[] {
																					this.radioButton3,
																					this.radioButton2,
																					this.radioButton1});
			this.groupBox3.Location = new System.Drawing.Point(432, 8);
			this.groupBox3.Name = "groupBox3";
			this.groupBox3.Size = new System.Drawing.Size(104, 144);
			this.groupBox3.TabIndex = 5;
			this.groupBox3.TabStop = false;
			this.groupBox3.Text = "优先级";
			// 
			// radioButton3
			// 
			this.radioButton3.Location = new System.Drawing.Point(8, 88);
			this.radioButton3.Name = "radioButton3";
			this.radioButton3.Size = new System.Drawing.Size(88, 24);
			this.radioButton3.TabIndex = 2;
			this.radioButton3.Text = "普通";
			// 
			// radioButton2
			// 
			this.radioButton2.Location = new System.Drawing.Point(8, 56);
			this.radioButton2.Name = "radioButton2";
			this.radioButton2.Size = new System.Drawing.Size(88, 24);
			this.radioButton2.TabIndex = 1;
			this.radioButton2.Text = "低";
			// 
			// radioButton1
			// 
			this.radioButton1.Location = new System.Drawing.Point(8, 24);
			this.radioButton1.Name = "radioButton1";
			this.radioButton1.Size = new System.Drawing.Size(88, 24);
			this.radioButton1.TabIndex = 0;
			this.radioButton1.Text = "高";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(544, 397);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.groupBox2,
																		  this.button3,
																		  this.button2,
																		  this.groupBox1,
																		  this.button1,
																		  this.groupBox3});
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.Text = "mail";
			this.groupBox1.ResumeLayout(false);
			this.groupBox2.ResumeLayout(false);
			this.groupBox3.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button1_Click(object sender, System.EventArgs e)
		{   
			try
			{
					if(textBox1.Text!="")
				{
					aa.To=textBox1.Text;}
				else{
					MessageBox.Show("请输入收件人地址");
					}

				if(textBox2.Text!=""){
					aa.Cc=textBox2.Text;}
				if(textBox3.Text!=""){
					aa.Bcc=textBox3.Text;}
				if(textBox4.Text!="")
				{
					aa.From=textBox4.Text;}
				else{MessageBox.Show("请输入发件人地址");}
				
				
				aa.Subject=textBox5.Text;
				
				aa.Body=richTextBox1.Text;
				if(radioButton1.Checked)
				{
					aa.Priority=MailPriority.High;
				}
				else if(radioButton2.Checked)
				{
					aa.Priority=MailPriority.Low;
				}
				else if(radioButton3.Checked)
				{
					aa.Priority=MailPriority.Normal;
				}
				else{aa.Priority=MailPriority.Normal;}
				SmtpMail.Send(aa);

			}
			catch(Exception ee){MessageBox.Show(ee.Message);}
		}

		private void button2_Click(object sender, System.EventArgs e)
		{ 
		  
			if(openFileDialog1.ShowDialog()==DialogResult.OK)
			{
				bb=new MailAttachment(openFileDialog1.FileName,System.Web.Mail.MailEncoding.UUEncode);
				aa.Attachments.Add(bb);}

		}

		private void button3_Click(object sender, System.EventArgs e)
		{
	            		
			    
				aa.Attachments.Clear();

		}
	}
}