frmadminwelcome.cs

本论文叙述了联机考试系统的现状以及C#语言的概况。重点介绍了联机考试系统的实现过程：包括系统分析、 系统调查、 数据流程分析、功能设计、 数据库设计、 系统物理配置方案、 系统实现、 系统测试和调试。

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

namespace OES
{
	/// <summary>
	/// Summary description for frmAdminWelcome.
	/// </summary>
	public class frmAdminWelcome : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label8;
		private System.Windows.Forms.Label label6;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label9;
		private System.Windows.Forms.Button btnCreateUser;
		private System.Windows.Forms.Button btnLogout;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		static int flag=0;
		private frmUserSearch user;
		private frmUser u;
		private System.Windows.Forms.Button btnModifyUser;
		private System.Windows.Forms.Button btnHelp;
		private System.Windows.Forms.HelpProvider hlpOES;
		frmLogin objLogin;

		public frmAdminWelcome(frmLogin login)
		{
			
			// Required for Windows Form Designer support
			//
			InitializeComponent();


			objLogin = login;
		}

		/// <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()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmAdminWelcome));
			this.btnCreateUser = new System.Windows.Forms.Button();
			this.btnModifyUser = new System.Windows.Forms.Button();
			this.btnLogout = new System.Windows.Forms.Button();
			this.label1 = new System.Windows.Forms.Label();
			this.label8 = new System.Windows.Forms.Label();
			this.label6 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.btnHelp = new System.Windows.Forms.Button();
			this.label9 = new System.Windows.Forms.Label();
			this.hlpOES = new System.Windows.Forms.HelpProvider();
			this.SuspendLayout();
			// 
			// btnCreateUser
			// 
			this.btnCreateUser.BackColor = System.Drawing.Color.Transparent;
			this.btnCreateUser.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnCreateUser.Font = new System.Drawing.Font("Verdana", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnCreateUser.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
			this.btnCreateUser.Location = new System.Drawing.Point(19, 155);
			this.btnCreateUser.Name = "btnCreateUser";
			this.btnCreateUser.Size = new System.Drawing.Size(144, 43);
			this.btnCreateUser.TabIndex = 53;
			this.btnCreateUser.Text = "创建新用户(&N)";
			this.btnCreateUser.Click += new System.EventHandler(this.btnCreateUser_Click);
			// 
			// btnModifyUser
			// 
			this.btnModifyUser.AllowDrop = true;
			this.btnModifyUser.BackColor = System.Drawing.Color.Transparent;
			this.btnModifyUser.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnModifyUser.Font = new System.Drawing.Font("Verdana", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnModifyUser.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
			this.btnModifyUser.Location = new System.Drawing.Point(19, 243);
			this.btnModifyUser.Name = "btnModifyUser";
			this.btnModifyUser.Size = new System.Drawing.Size(144, 35);
			this.btnModifyUser.TabIndex = 56;
			this.btnModifyUser.Text = "修改用户(&M)";
			this.btnModifyUser.Click += new System.EventHandler(this.btnModifyUser_Click);
			// 
			// btnLogout
			// 
			this.btnLogout.BackColor = System.Drawing.Color.Transparent;
			this.btnLogout.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnLogout.Font = new System.Drawing.Font("Verdana", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnLogout.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
			this.btnLogout.Location = new System.Drawing.Point(29, 323);
			this.btnLogout.Name = "btnLogout";
			this.btnLogout.Size = new System.Drawing.Size(105, 26);
			this.btnLogout.TabIndex = 57;
			this.btnLogout.Text = "退出(&O)";
			this.btnLogout.Click += new System.EventHandler(this.btnLogout_Click);
			// 
			// label1
			// 
			this.label1.AutoSize = true;
			this.label1.BackColor = System.Drawing.Color.Transparent;
			this.label1.Font = new System.Drawing.Font("Century Gothic", 27.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label1.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label1.Location = new System.Drawing.Point(298, 43);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(307, 49);
			this.label1.TabIndex = 58;
			this.label1.Text = "欢  迎  管  理  员";
			// 
			// label8
			// 
			this.label8.AutoSize = true;
			this.label8.BackColor = System.Drawing.Color.Transparent;
			this.label8.Font = new System.Drawing.Font("Verdana", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label8.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label8.Location = new System.Drawing.Point(230, 334);
			this.label8.Name = "label8";
			this.label8.Size = new System.Drawing.Size(241, 22);
			this.label8.TabIndex = 63;
			this.label8.Text = "要退出系统，请点击“退出”选项";
			// 
			// label6
			// 
			this.label6.AutoSize = true;
			this.label6.BackColor = System.Drawing.Color.Transparent;
			this.label6.Font = new System.Drawing.Font("Verdana", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label6.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label6.Location = new System.Drawing.Point(230, 258);
			this.label6.Name = "label6";
			this.label6.Size = new System.Drawing.Size(0, 22);
			this.label6.TabIndex = 62;
			// 
			// label5
			// 
			this.label5.BackColor = System.Drawing.Color.Transparent;
			this.label5.Font = new System.Drawing.Font("Verdana", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label5.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label5.Location = new System.Drawing.Point(230, 155);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(615, 43);
			this.label5.TabIndex = 59;
			this.label5.Text = "要创建新的用户，请点击本窗口左边的“创建新用户”选项";
			// 
			// label3
			// 
			this.label3.AutoSize = true;
			this.label3.BackColor = System.Drawing.Color.Transparent;
			this.label3.Font = new System.Drawing.Font("Verdana", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label3.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label3.Location = new System.Drawing.Point(230, 345);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(0, 22);
			this.label3.TabIndex = 65;
			// 
			// label4
			// 
			this.label4.BackColor = System.Drawing.Color.Transparent;
			this.label4.Font = new System.Drawing.Font("Verdana", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label4.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label4.Location = new System.Drawing.Point(230, 244);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(624, 44);
			this.label4.TabIndex = 64;
			this.label4.Text = "要查看或修改用户信息，请点击本窗口左边的“修改用户”选项";
			// 
			// btnHelp
			// 
			this.btnHelp.BackColor = System.Drawing.Color.Transparent;
			this.btnHelp.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
			this.btnHelp.Font = new System.Drawing.Font("Verdana", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.btnHelp.ForeColor = System.Drawing.SystemColors.ActiveCaptionText;
			this.btnHelp.Location = new System.Drawing.Point(38, 394);
			this.btnHelp.Name = "btnHelp";
			this.btnHelp.Size = new System.Drawing.Size(87, 26);
			this.btnHelp.TabIndex = 67;
			this.btnHelp.Text = "帮助(&H)";
			this.btnHelp.Click += new System.EventHandler(this.btnHelp_Click);
			// 
			// label9
			// 
			this.label9.AutoSize = true;
			this.label9.BackColor = System.Drawing.Color.Transparent;
			this.label9.Font = new System.Drawing.Font("Verdana", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
			this.label9.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
			this.label9.Location = new System.Drawing.Point(230, 404);
			this.label9.Name = "label9";
			this.label9.Size = new System.Drawing.Size(224, 22);
			this.label9.TabIndex = 68;
			this.label9.Text = "要获得帮助请点击“帮助”选项";
			// 
			// frmAdminWelcome
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage")));
			this.ClientSize = new System.Drawing.Size(902, 568);
			this.Controls.Add(this.label9);
			this.Controls.Add(this.label8);
			this.Controls.Add(this.label1);
			this.Controls.Add(this.btnHelp);
			this.Controls.Add(this.label3);
			this.Controls.Add(this.label4);
			this.Controls.Add(this.label6);
			this.Controls.Add(this.label5);
			this.Controls.Add(this.btnLogout);
			this.Controls.Add(this.btnModifyUser);
			this.Controls.Add(this.btnCreateUser);
			this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
			this.Name = "frmAdminWelcome";
			this.Text = "frmAdminWelcome";
			this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
			this.ResumeLayout(false);

		}
		#endregion

//		[STAThread]
//		static void Main() 
//		{
//			Application.Run(new frmAdminWelcome());
//		}

		private void btnCreateUser_Click(object sender, System.EventArgs e)
		{
			this.btnCreateUser.ForeColor=Color.Khaki;					
			this.btnModifyUser.ForeColor=SystemColors.ActiveCaptionText;
			this.btnHelp.ForeColor=SystemColors.ActiveCaptionText;
			//flag check is done to close the other forms that may be open in the background
			if(flag==2)
			{
				user.Close();//close the Edit User form
			}
			flag=1;
			//call frmUser form passing the flag variable as a parameter to indicate that create user version is being called
			u=new frmUser(flag,this);
			u.ShowDialog();//modify by dongping 2004-12-25
		}

//		private void btnEditUser_Click(object sender, System.EventArgs e)
//		{
//			//flag check is done to close the other forms that may be open in the background
//			if(flag==1)
//			{
//				u.Close();//close the Create user form
//			}
//			if(flag==3)
//			{
//				user.Close();//close the Search form
//			}
//			flag=2;
//			//call frmUser form passing the flag variable as a parameter to indicate that modify version is being called
//			u=new frmUser(flag,this);
//			
//			u.cboUserType.Enabled=false;
//
//			u.Show();
//		}

		

		private void btnLogout_Click(object sender, System.EventArgs e)
		{
			this.Close();//close the current form - AdminWelcome
			if(flag==1)
			{
				u.Close();//close frmUser if open
			}
			if(flag==2)
			{
				user.Close();//close frmUser if open (modify)
			}
			objLogin.txtUsername.Text="";
			objLogin.txtPassword.Text="";
			objLogin.Show();//show the existing instance of the login form
			objLogin.txtUsername.Focus();
			objLogin.lblLogin.Text="";
			frmLogin.ctr=1;
			
		}

		private void btnModifyUser_Click(object sender, System.EventArgs e)
		{
			this.btnCreateUser.ForeColor=SystemColors.ActiveCaptionText;
			this.btnHelp.ForeColor=SystemColors.ActiveCaptionText;
			this.btnModifyUser.ForeColor=Color.Khaki;

			//flag check is done to close the other forms that may be open in the background
			if(flag !=2)//check if other forms are open
			{
				if(u != null)//check if frmUser instance is not active
				{
					u.Close();//if active - close the form
				}
			}
			//set flag value to indicate that the frmUserSearch form is being called
			flag=2;
			user=new frmUserSearch();
			user.ShowDialog();//modify by dongping 2004-12-25

			/*flag check is done to close the other forms that may be open in the background
			if(flag==1)
			{
				u.Close();//close the Create user form
			}
			if(flag==2)
			{
				user.Close();//close the Search form
			}
			flag=2;
			//call frmUser form passing the flag variable as a parameter to indicate that modify version is being called
			u=new frmUser(flag,this);
			u.cboUserType.Enabled=false;
			u.Show();		*/
		}

		private void btnHelp_Click(object sender, System.EventArgs e)
		{
			this.btnHelp.ForeColor=Color.Khaki;
			this.btnModifyUser.ForeColor=SystemColors.ActiveCaptionText;
			this.btnCreateUser.ForeColor=SystemColors.ActiveCaptionText;
			//Help.ShowPopup(
			Help.ShowHelp(this,Environment.CurrentDirectory +@"\\OES_Help\OES_Help.chm");
		}
	}
}