Email客户端

开发平台：
Visual C++

NewAccount.cs：源码内容
							using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using MailManageSystem.RegisterAccount ;
namespace MailManageSystem
{
	/// <summary>
	/// NewAccount 的摘要说明。
	/// </summary>
	public class NewAccount : System.Windows.Forms.Form
	{
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.Label label7;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label8;
		private System.Windows.Forms.Button btnNext;
		private System.Windows.Forms.Button btnCancle;
		private System.Windows.Forms.TextBox txtUserName;
		private System.Windows.Forms.TextBox txtPassWord;
		private System.Windows.Forms.TextBox txtAccountName;
		private System.Windows.Forms.TextBox txtMailAddress;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;
		private System.Windows.Forms.LinkLabel linkLabel1;
		AccountOperate acOperate=new AccountOperate();
		
		public NewAccount()
		{
			//
			// 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()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(NewAccount));
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.label1 = new System.Windows.Forms.Label();
			this.txtUserName = new System.Windows.Forms.TextBox();
			this.label6 = new System.Windows.Forms.Label();
			this.txtPassWord = new System.Windows.Forms.TextBox();
			this.label7 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.txtAccountName = new System.Windows.Forms.TextBox();
			this.label5 = new System.Windows.Forms.Label();
			this.btnNext = new System.Windows.Forms.Button();
			this.label8 = new System.Windows.Forms.Label();
			this.txtMailAddress = new System.Windows.Forms.TextBox();
			this.btnCancle = new System.Windows.Forms.Button();
			this.linkLabel1 = new System.Windows.Forms.LinkLabel();
			this.SuspendLayout();
			// 
			// pictureBox1
			// 
			this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
			this.pictureBox1.Location = new System.Drawing.Point(8, 8);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(152, 272);
			this.pictureBox1.TabIndex = 0;
			this.pictureBox1.TabStop = false;
			// 
			// label1
			// 
			this.label1.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.label1.Font = new System.Drawing.Font("宋体", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label1.Location = new System.Drawing.Point(192, 16);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(128, 24);
			this.label1.TabIndex = 0;
			this.label1.Text = "建立新的用户帐户:";
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// txtUserName
			// 
			this.txtUserName.Location = new System.Drawing.Point(304, 88);
			this.txtUserName.Name = "txtUserName";
			this.txtUserName.Size = new System.Drawing.Size(144, 21);
			this.txtUserName.TabIndex = 2;
			this.txtUserName.Text = "";
			// 
			// label6
			// 
			this.label6.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.label6.Location = new System.Drawing.Point(240, 120);
			this.label6.Name = "label6";
			this.label6.Size = new System.Drawing.Size(40, 23);
			this.label6.TabIndex = 0;
			this.label6.Text = "密码:";
			// 
			// txtPassWord
			// 
			this.txtPassWord.Location = new System.Drawing.Point(304, 120);
			this.txtPassWord.Name = "txtPassWord";
			this.txtPassWord.PasswordChar = '*';
			this.txtPassWord.Size = new System.Drawing.Size(144, 21);
			this.txtPassWord.TabIndex = 3;
			this.txtPassWord.Text = "531115";
			// 
			// label7
			// 
			this.label7.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.label7.Location = new System.Drawing.Point(232, 88);
			this.label7.Name = "label7";
			this.label7.Size = new System.Drawing.Size(56, 23);
			this.label7.TabIndex = 0;
			this.label7.Text = "用户名:";
			// 
			// label4
			// 
			this.label4.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.label4.ForeColor = System.Drawing.Color.Red;
			this.label4.Location = new System.Drawing.Point(184, 200);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(112, 16);
			this.label4.TabIndex = 0;
			this.label4.Text = "[必填]帐户名称:";
			// 
			// txtAccountName
			// 
			this.txtAccountName.Location = new System.Drawing.Point(304, 200);
			this.txtAccountName.Name = "txtAccountName";
			this.txtAccountName.Size = new System.Drawing.Size(144, 21);
			this.txtAccountName.TabIndex = 4;
			this.txtAccountName.Text = "";
			// 
			// label5
			// 
			this.label5.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.label5.Location = new System.Drawing.Point(184, 160);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(256, 24);
			this.label5.TabIndex = 0;
			this.label5.Text = ""帐户名称"是在本软件中要显示的名称";
			this.label5.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// btnNext
			// 
			this.btnNext.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.btnNext.Location = new System.Drawing.Point(200, 272);
			this.btnNext.Name = "btnNext";
			this.btnNext.TabIndex = 5;
			this.btnNext.Text = "下一步";
			this.btnNext.Click += new System.EventHandler(this.btnNext_Click);
			// 
			// label8
			// 
			this.label8.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.label8.ForeColor = System.Drawing.Color.Red;
			this.label8.Location = new System.Drawing.Point(168, 56);
			this.label8.Name = "label8";
			this.label8.Size = new System.Drawing.Size(128, 23);
			this.label8.TabIndex = 0;
			this.label8.Text = "[必填]电子邮件地址:";
			// 
			// txtMailAddress
			// 
			this.txtMailAddress.Location = new System.Drawing.Point(304, 56);
			this.txtMailAddress.Name = "txtMailAddress";
			this.txtMailAddress.Size = new System.Drawing.Size(144, 21);
			this.txtMailAddress.TabIndex = 1;
			this.txtMailAddress.Text = "xuelinbo1115@163.com";
			this.txtMailAddress.Leave += new System.EventHandler(this.txtMailAddress_Leave);
			// 
			// btnCancle
			// 
			this.btnCancle.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.btnCancle.Location = new System.Drawing.Point(384, 272);
			this.btnCancle.Name = "btnCancle";
			this.btnCancle.TabIndex = 0;
			this.btnCancle.Text = "取消";
			this.btnCancle.Click += new System.EventHandler(this.btnCancle_Click);
			// 
			// linkLabel1
			// 
			this.linkLabel1.Location = new System.Drawing.Point(376, 232);
			this.linkLabel1.Name = "linkLabel1";
			this.linkLabel1.Size = new System.Drawing.Size(80, 16);
			this.linkLabel1.TabIndex = 6;
			this.linkLabel1.TabStop = true;
			this.linkLabel1.Text = "检测帐户名";
			this.linkLabel1.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabel1_LinkClicked);
			// 
			// NewAccount
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(472, 318);
			this.Controls.Add(this.linkLabel1);
			this.Controls.Add(this.btnCancle);
			this.Controls.Add(this.label8);
			this.Controls.Add(this.txtMailAddress);
			this.Controls.Add(this.btnNext);
			this.Controls.Add(this.label5);
			this.Controls.Add(this.txtAccountName);
			this.Controls.Add(this.label4);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.pictureBox1);
			this.Controls.Add(this.txtPassWord);
			this.Controls.Add(this.label7);
			this.Controls.Add(this.label6);
			this.Controls.Add(this.txtUserName);
			this.Name = "NewAccount";
			this.Text = "NewAccount";
			this.ResumeLayout(false);
		}
		#endregion
		private void btnNext_Click(object sender, System.EventArgs e)
		{
			SystemManage.UserName =this.txtUserName .Text ;
			SystemManage.PassWd =this.txtPassWord .Text ;
			SystemManage.AccountName =this.txtAccountName .Text ;
			if(this.txtMailAddress .Text =="")
			{
				MessageBox.Show ("请检查邮件地址");
				return;
			}
			if(this.txtUserName .Text =="")
			{
				MessageBox.Show ("请检查用户名");
				return;
			}
			
			if(this.txtPassWord.Text =="")
			{
				MessageBox.Show ("密码不能为空");
				return;
			}
			if(this.txtAccountName.Text =="")
			{
				MessageBox.Show ("帐户名不可为空");
				return;
			}
		
			if(returnState())
			{
				MessageBox.Show ("请更改注册名！");
			}
			else
			{
				SmtpPop smtpop=new SmtpPop ();
				smtpop.Show ();
				this.Close();
			}
		}
		private void btnCancle_Click(object sender, System.EventArgs e)
		{
			this.Close ();
		}
		private void txtMailAddress_Leave(object sender, System.EventArgs e)
		{
			int i=this.txtMailAddress .Text .IndexOf ("@");
			if(i==-1)
			{
				MessageBox.Show ("请输入正确的邮件格式!","请检查");
				return;
			}
			else
			{
				this.txtAccountName .Text =this.txtMailAddress .Text .Substring (0,i);
				this.txtUserName.Text  =this.txtAccountName .Text ;
				SystemManage.MailAddress =this.txtMailAddress .Text ;
				SystemManage.AccountName =this.txtAccountName .Text ;
			}
		}
		//调用Accountoperate类的检查帐户是否被占用的函数，并返回一个标志位
		private bool returnState()
		{
			bool state=false;
			state=acOperate.CheckAccount("select AccountName from Users where AccountName='"+this.txtAccountName .Text +"'",this.txtAccountName .Text );
			return state;
		}
		private void linkLabel1_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			if(returnState())
			{
				MessageBox.Show ("这个帐户已经被人注册","很遗憾!",MessageBoxButtons.OK,MessageBoxIcon.Warning);
				this.txtAccountName .Clear ();
			}
			else
			{
				MessageBox.Show ("这个注册名还没有人使用，您可以放心使用了","恭喜!",MessageBoxButtons.OK,MessageBoxIcon.Exclamation);
			}
		}
	}
}
			
		
	

						