frmlogin.cs

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using BusinessRule;
using DataAccess;



namespace Forms
{
	/// <summary>
	/// frmLogin 的摘要说明。
	/// </summary>
	public class frmLogin : System.Windows.Forms.Form
	{
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.TextBox txtPassWord;
		private System.Windows.Forms.Button btnLog;
		private System.Windows.Forms.Button btnExit;
		private System.Windows.Forms.TextBox txtUserName;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>

		private System.ComponentModel.Container components = null;

		//构造函数
		public frmLogin()
		{
			InitializeComponent();
			if(frmMain.UserID != 10000)
			{
				txtUserName.Text = frmMain.UserID.ToString();
				txtUserName.SelectAll();
			}
		}

		/// <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(frmLogin));
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.txtPassWord = new System.Windows.Forms.TextBox();
			this.txtUserName = new System.Windows.Forms.TextBox();
			this.label2 = new System.Windows.Forms.Label();
			this.label1 = new System.Windows.Forms.Label();
			this.btnLog = new System.Windows.Forms.Button();
			this.btnExit = new System.Windows.Forms.Button();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.label3 = new System.Windows.Forms.Label();
			this.groupBox1.SuspendLayout();
			this.SuspendLayout();
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.txtPassWord);
			this.groupBox1.Controls.Add(this.txtUserName);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Controls.Add(this.btnLog);
			this.groupBox1.Controls.Add(this.btnExit);
			this.groupBox1.Location = new System.Drawing.Point(16, 144);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(267, 144);
			this.groupBox1.TabIndex = 0;
			this.groupBox1.TabStop = false;
			// 
			// txtPassWord
			// 
			this.txtPassWord.Location = new System.Drawing.Point(104, 64);
			this.txtPassWord.Name = "txtPassWord";
			this.txtPassWord.PasswordChar = '*';
			this.txtPassWord.Size = new System.Drawing.Size(144, 21);
			this.txtPassWord.TabIndex = 1;
			this.txtPassWord.Text = "";
			this.txtPassWord.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txtPassWord_KeyPress);
			// 
			// txtUserName
			// 
			this.txtUserName.Location = new System.Drawing.Point(104, 24);
			this.txtUserName.Name = "txtUserName";
			this.txtUserName.Size = new System.Drawing.Size(144, 21);
			this.txtUserName.TabIndex = 0;
			this.txtUserName.Text = "";
			this.txtUserName.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.txtUserName_KeyPress);
			// 
			// label2
			// 
			this.label2.Location = new System.Drawing.Point(24, 64);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(64, 23);
			this.label2.TabIndex = 3;
			this.label2.Text = "密码：";
			// 
			// label1
			// 
			this.label1.Location = new System.Drawing.Point(24, 24);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(64, 23);
			this.label1.TabIndex = 2;
			this.label1.Text = "用户名：";
			// 
			// btnLog
			// 
			this.btnLog.Location = new System.Drawing.Point(56, 104);
			this.btnLog.Name = "btnLog";
			this.btnLog.Size = new System.Drawing.Size(72, 24);
			this.btnLog.TabIndex = 10;
			this.btnLog.Text = "登录(&L)";
			this.btnLog.Click += new System.EventHandler(this.btnLog_Click);
			// 
			// btnExit
			// 
			this.btnExit.Location = new System.Drawing.Point(144, 104);
			this.btnExit.Name = "btnExit";
			this.btnExit.Size = new System.Drawing.Size(72, 24);
			this.btnExit.TabIndex = 1;
			this.btnExit.Text = "取消(&C)";
			this.btnExit.Click += new System.EventHandler(this.btnExit_Click);
			// 
			// pictureBox1
			// 
			this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
			this.pictureBox1.ImeMode = System.Windows.Forms.ImeMode.NoControl;
			this.pictureBox1.Location = new System.Drawing.Point(16, 8);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(267, 88);
			this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
			this.pictureBox1.TabIndex = 8;
			this.pictureBox1.TabStop = false;
			// 
			// label3
			// 
			this.label3.BackColor = System.Drawing.Color.DarkSlateBlue;
			this.label3.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
			this.label3.Font = new System.Drawing.Font("黑体", 16.2F);
			this.label3.ForeColor = System.Drawing.Color.Yellow;
			this.label3.ImeMode = System.Windows.Forms.ImeMode.NoControl;
			this.label3.Location = new System.Drawing.Point(16, 96);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(267, 37);
			this.label3.TabIndex = 9;
			this.label3.Text = "北大青鸟管理系统";
			this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// frmLogin
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(304, 301);
			this.ControlBox = false;
			this.Controls.Add(this.label3);
			this.Controls.Add(this.pictureBox1);
			this.Controls.Add(this.groupBox1);
			this.MaximizeBox = false;
			this.Name = "frmLogin";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "登录";
			this.Load += new System.EventHandler(this.frmLogin_Load);
			this.groupBox1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		

			

		//单击“登录”按键
		private void btnLog_Click(object sender, System.EventArgs e)
		{
			int teaID;
			try
			{
				teaID = int.Parse(txtUserName.Text.Trim());
			}
			catch(Exception ex)
			{
				MessageBox.Show("用户名不可以包含非数字字符！","用户名错误",MessageBoxButtons.OK ,MessageBoxIcon.Error);
				txtUserName.Focus();
				txtUserName.SelectAll();
				txtPassWord.Text = "";
				return;
			}
			if(jimmy.CheckUp(teaID,txtPassWord.Text.Trim()))
			{
				frmMain.UserID = teaID;
				this.Close();
			}
			else
			{
				MessageBox.Show("抱歉，用户名和密码不匹配！","登录不成功",MessageBoxButtons.OK,MessageBoxIcon.Error);
				txtUserName.Focus();
				txtUserName.SelectAll();
				txtPassWord.Text = "";
			}
		}

		//单击“取消”按键
		private void btnExit_Click(object sender, System.EventArgs e)
		{
			this.Close();
		}

		//两个文本输入框都支持直接按回车键登录
		private void txtUserName_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
		{
			if(e.KeyChar == (char)13 )
			{
				btnLog_Click(sender,e);
			}
		}
		private void txtPassWord_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
		{
			if(e.KeyChar == (char)13 )
			{
				btnLog_Click(sender,e);
			}
		}

		private void frmLogin_Load(object sender, System.EventArgs e)
		{
		
		}	
	}
}