form_main.cs

一个很简单的考试系统。实用性很强啊！数据库在里面

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace bizdb
{
	/// <summary>
	/// Form_main 的摘要说明。
	/// </summary>
	public class Form_main : System.Windows.Forms.Form
	{
		private System.Windows.Forms.MainMenu mmu;
		private System.Windows.Forms.MenuItem menuItem1;
		private System.Windows.Forms.MenuItem menuItem2;
		private System.Windows.Forms.MenuItem menuItem3;
		private System.Windows.Forms.MenuItem menuItem4;
		private System.Windows.Forms.MenuItem menuItem5;
		private System.Windows.Forms.MenuItem menuItem6;
		private System.Windows.Forms.MenuItem menuItem7;
		private System.Windows.Forms.MenuItem menuItem8;
		private System.Windows.Forms.MenuItem menuItem10;
		private System.Windows.Forms.MenuItem menuItem11;
		private System.Windows.Forms.MenuItem menuItem12;
		private System.Windows.Forms.MenuItem menuItem18;
		private System.Windows.Forms.MenuItem menuItem19;
		private System.Windows.Forms.NotifyIcon notifyIcon1;
		private System.ComponentModel.IContainer components;
		/*private Form_csh newForm_csh = new Form_csh();
		private Form_da newForm_da = new Form_da();
		private Form_dkcj newForm_dkcj = new Form_dkcj();
		private Form_jxdy newForm_jxdy = new Form_jxdy();
		private Form_kc newForm_kc = new Form_kc();
		private Form_kckcx newForm_kckcx = new Form_kckcx();
		private Form_lssjyl newForm_lssjyl = new Form_lssjyl();
		private Form_mbwh newForm_mbwh = new Form_mbwh();
		private Form_ndbb newForm_ndbb = new Form_ndbb();
		private Form_sjjgcx newForm_sjjgcx = new Form_sjjgcx();
		private Form_sjjgdy newForm_sjjgdy = new Form_sjjgdy();
		private Form_sknl newForm_sknl = new Form_sknl();
		private Form_st newForm_st = new Form_st();
		private Form_xy newForm_xy = new Form_xy();
		private Form_xycx newForm_xycx = new Form_xycx();
		private Form_jzgcx newForm_jzgcx = new Form_jzgcx();
		private Form_jzg newForm_jzg = new Form_jzg();*/
		private System.Windows.Forms.MenuItem menuItem20;
		private System.Windows.Forms.MenuItem menuItem21;
		private System.Windows.Forms.MenuItem menuItem23;
		private System.Windows.Forms.MenuItem menuItem25;
		private System.Windows.Forms.MenuItem menuItem26;
		private System.Windows.Forms.MenuItem menuItem27;
		private bool isfrist = true;
		private System.Windows.Forms.MenuItem menuItem28;
		private System.Windows.Forms.MenuItem menuItem35;
		private System.Windows.Forms.MenuItem menuItem36;
		private System.Windows.Forms.MenuItem menuItem40;
		private System.Windows.Forms.MenuItem menuItem44;
		private System.Windows.Forms.MenuItem menuItem46;
		private System.Windows.Forms.MenuItem menuItem47;
		private System.Windows.Forms.MenuItem menuItem49;
		private System.Windows.Forms.MenuItem menuItem50;
		private System.Windows.Forms.MenuItem menuItem51;
		private System.Windows.Forms.MenuItem menuItem9;
		private System.Windows.Forms.MenuItem menuItem13;
		private System.Windows.Forms.MenuItem menuItem15;
		private System.Windows.Forms.MenuItem menuItem34;
		private System.Windows.Forms.MenuItem menuItem38;
		private System.Windows.Forms.MenuItem menuItem39;
		private System.Windows.Forms.MenuItem menuItem41;
		private System.Windows.Forms.MenuItem menuItem42;
		private System.Windows.Forms.MenuItem menuItem43;
		private System.Windows.Forms.MenuItem menuItem45;
		private System.Windows.Forms.MenuItem menuItem52;
		private System.Windows.Forms.MenuItem menuItem53;
		private System.Windows.Forms.MenuItem menuItem54;
		private System.Windows.Forms.MenuItem menuItem55;
		private System.Windows.Forms.MenuItem menuItem31;
		private System.Windows.Forms.MenuItem menuItem32;
		private System.Windows.Forms.MenuItem menuItem33;
		private System.Windows.Forms.MenuItem menuItem37;
		private System.Windows.Forms.MenuItem menuItem56;
		private System.Windows.Forms.MenuItem menuItem57;
		private System.Windows.Forms.MenuItem menuItem58;
		private System.Windows.Forms.MenuItem menuItem24;
		private System.Windows.Forms.MenuItem menuItem14;
		private System.Windows.Forms.MenuItem menuItem16;
		private System.Windows.Forms.MenuItem menuItem17;
		private System.Windows.Forms.MenuItem menuItem22;
		private System.Windows.Forms.MenuItem menuItem29;
		private System.Windows.Forms.MenuItem menuItem30;
		private common c = new common();
		

		public Form_main()
		{
			//
			// 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 Form Designer generated code
		/// <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.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form_main));
			this.mmu = new System.Windows.Forms.MainMenu();
			this.menuItem1 = new System.Windows.Forms.MenuItem();
			this.menuItem2 = new System.Windows.Forms.MenuItem();
			this.menuItem3 = new System.Windows.Forms.MenuItem();
			this.menuItem20 = new System.Windows.Forms.MenuItem();
			this.menuItem24 = new System.Windows.Forms.MenuItem();
			this.menuItem4 = new System.Windows.Forms.MenuItem();
			this.menuItem38 = new System.Windows.Forms.MenuItem();
			this.menuItem39 = new System.Windows.Forms.MenuItem();
			this.menuItem41 = new System.Windows.Forms.MenuItem();
			this.menuItem42 = new System.Windows.Forms.MenuItem();
			this.menuItem45 = new System.Windows.Forms.MenuItem();
			this.menuItem43 = new System.Windows.Forms.MenuItem();
			this.menuItem5 = new System.Windows.Forms.MenuItem();
			this.menuItem6 = new System.Windows.Forms.MenuItem();
			this.menuItem7 = new System.Windows.Forms.MenuItem();
			this.menuItem34 = new System.Windows.Forms.MenuItem();
			this.menuItem27 = new System.Windows.Forms.MenuItem();
			this.menuItem8 = new System.Windows.Forms.MenuItem();
			this.menuItem11 = new System.Windows.Forms.MenuItem();
			this.menuItem12 = new System.Windows.Forms.MenuItem();
			this.menuItem21 = new System.Windows.Forms.MenuItem();
			this.menuItem32 = new System.Windows.Forms.MenuItem();
			this.menuItem31 = new System.Windows.Forms.MenuItem();
			this.menuItem35 = new System.Windows.Forms.MenuItem();
			this.menuItem36 = new System.Windows.Forms.MenuItem();
			this.menuItem40 = new System.Windows.Forms.MenuItem();
			this.menuItem44 = new System.Windows.Forms.MenuItem();
			this.menuItem54 = new System.Windows.Forms.MenuItem();
			this.menuItem14 = new System.Windows.Forms.MenuItem();
			this.menuItem17 = new System.Windows.Forms.MenuItem();
			this.menuItem16 = new System.Windows.Forms.MenuItem();
			this.menuItem15 = new System.Windows.Forms.MenuItem();
			this.menuItem50 = new System.Windows.Forms.MenuItem();
			this.menuItem51 = new System.Windows.Forms.MenuItem();
			this.menuItem9 = new System.Windows.Forms.MenuItem();
			this.menuItem55 = new System.Windows.Forms.MenuItem();
			this.menuItem22 = new System.Windows.Forms.MenuItem();
			this.menuItem29 = new System.Windows.Forms.MenuItem();
			this.menuItem13 = new System.Windows.Forms.MenuItem();
			this.menuItem46 = new System.Windows.Forms.MenuItem();
			this.menuItem47 = new System.Windows.Forms.MenuItem();
			this.menuItem49 = new System.Windows.Forms.MenuItem();
			this.menuItem52 = new System.Windows.Forms.MenuItem();
			this.menuItem53 = new System.Windows.Forms.MenuItem();
			this.menuItem30 = new System.Windows.Forms.MenuItem();
			this.menuItem33 = new System.Windows.Forms.MenuItem();
			this.menuItem37 = new System.Windows.Forms.MenuItem();
			this.menuItem57 = new System.Windows.Forms.MenuItem();
			this.menuItem56 = new System.Windows.Forms.MenuItem();
			this.menuItem10 = new System.Windows.Forms.MenuItem();
			this.menuItem18 = new System.Windows.Forms.MenuItem();
			this.menuItem19 = new System.Windows.Forms.MenuItem();
			this.menuItem28 = new System.Windows.Forms.MenuItem();
			this.menuItem23 = new System.Windows.Forms.MenuItem();
			this.menuItem25 = new System.Windows.Forms.MenuItem();
			this.menuItem26 = new System.Windows.Forms.MenuItem();
			this.menuItem58 = new System.Windows.Forms.MenuItem();
			this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
			// 
			// mmu
			// 
			this.mmu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																				this.menuItem1,
																				this.menuItem38,
																				this.menuItem5,
																				this.menuItem8,
																				this.menuItem35,
																				this.menuItem50,
																				this.menuItem46,
																				this.menuItem33,
																				this.menuItem10,
																				this.menuItem23});
			// 
			// menuItem1
			// 
			this.menuItem1.Index = 0;
			this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.menuItem2,
																					  this.menuItem3,
																					  this.menuItem20,
																					  this.menuItem24,
																					  this.menuItem4});
			this.menuItem1.Text = "课研内容管理";
			// 
			// menuItem2
			// 
			this.menuItem2.Index = 0;
			this.menuItem2.Text = "课程基本信息";
			this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
			// 
			// menuItem3
			// 
			this.menuItem3.Index = 1;
			this.menuItem3.Text = "教学单元内容";
			this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
			// 
			// menuItem20
			// 
			this.menuItem20.Index = 2;
			this.menuItem20.Text = "授课能力管理";
			this.menuItem20.Click += new System.EventHandler(this.menuItem20_Click_1);
			// 
			// menuItem24
			// 
			this.menuItem24.Index = 3;
			this.menuItem24.Text = "-";
			// 
			// menuItem4
			// 
			this.menuItem4.Index = 4;
			this.menuItem4.Text = "课程库查询统计";
			this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);
			// 
			// menuItem38
			// 
			this.menuItem38.Index = 1;
			this.menuItem38.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					   this.menuItem39,
																					   this.menuItem41,
																					   this.menuItem42,
																					   this.menuItem45,
																					   this.menuItem43});
			this.menuItem38.Text = "教学计划管理";
			// 
			// menuItem39
			// 
			this.menuItem39.Index = 0;
			this.menuItem39.Text = "拟定专业计划";
			this.menuItem39.Click += new System.EventHandler(this.menuItem39_Click);
			// 
			// menuItem41
			// 
			this.menuItem41.Index = 1;
			this.menuItem41.Text = "拟定开班计划";
			this.menuItem41.Click += new System.EventHandler(this.menuItem41_Click);
			// 
			// menuItem42
			// 
			this.menuItem42.Index = 2;
			this.menuItem42.Text = "拟定开课计划";
			this.menuItem42.Click += new System.EventHandler(this.menuItem42_Click);
			// 
			// menuItem45
			// 
			this.menuItem45.Index = 3;
			this.menuItem45.Text = "-";
			// 
			// menuItem43
			// 
			this.menuItem43.Index = 4;
			this.menuItem43.Text = "教务计划查询统计";
			this.menuItem43.Click += new System.EventHandler(this.menuItem43_Click);
			// 
			// menuItem5
			// 
			this.menuItem5.Index = 2;
			this.menuItem5.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.menuItem6,
																					  this.menuItem7,
																					  this.menuItem34,
																					  this.menuItem27});
			this.menuItem5.Text = "试题库内容管理";
			// 
			// menuItem6
			// 
			this.menuItem6.Index = 0;
			this.menuItem6.Text = "试题内容维护";
			this.menuItem6.Click += new System.EventHandler(this.menuItem6_Click);
			// 
			// menuItem7
			// 
			this.menuItem7.Index = 1;
			this.menuItem7.Text = "答案内容维护";
			this.menuItem7.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem34
			// 
			this.menuItem34.Index = 2;
			this.menuItem34.Text = "-";
			// 
			// menuItem27
			// 
			this.menuItem27.Index = 3;
			this.menuItem27.Text = "试题库查询统计";
			this.menuItem27.Click += new System.EventHandler(this.menuItem27_Click);
			// 
			// menuItem8
			// 
			this.menuItem8.Index = 3;
			this.menuItem8.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.menuItem11,
																					  this.menuItem12,
																					  this.menuItem21,
																					  this.menuItem32,
																					  this.menuItem31});
			this.menuItem8.Text = "试卷库内容管理";
			// 
			// menuItem11
			// 
			this.menuItem11.Index = 0;
			this.menuItem11.Text = "试卷库结构定义";
			this.menuItem11.Click += new System.EventHandler(this.menuItem11_Click);
			// 
			// menuItem12
			// 
			this.menuItem12.Index = 1;
			this.menuItem12.Text = "试卷库结构查询";
			this.menuItem12.Click += new System.EventHandler(this.menuItem12_Click);
			// 
			// menuItem21
			// 
			this.menuItem21.Index = 2;
			this.menuItem21.Text = "试卷库结构阅览";
			this.menuItem21.Click += new System.EventHandler(this.menuItem21_Click);
			// 
			// menuItem32
			// 
			this.menuItem32.Index = 3;
			this.menuItem32.Text = "-";
			// 
			// menuItem31
			// 
			this.menuItem31.Index = 4;
			this.menuItem31.Text = "试卷库查询统计";
			this.menuItem31.Click += new System.EventHandler(this.menuItem31_Click);
			// 
			// menuItem35
			// 
			this.menuItem35.Index = 4;
			this.menuItem35.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					   this.menuItem36,
																					   this.menuItem40,
																					   this.menuItem44,
																					   this.menuItem54,
																					   this.menuItem14,
																					   this.menuItem17,
																					   this.menuItem16,
																					   this.menuItem15});
			this.menuItem35.Text = "学籍档案管理";
			// 
			// menuItem36
			// 
			this.menuItem36.Index = 0;
			this.menuItem36.Text = "学员基本信息";
			this.menuItem36.Click += new System.EventHandler(this.menuItem36_Click);
			// 
			// menuItem40
			// 
			this.menuItem40.Index = 1;
			this.menuItem40.Text = "学员选课信息";
			this.menuItem40.Click += new System.EventHandler(this.menuItem40_Click);
			// 
			// menuItem44
			// 
			this.menuItem44.Index = 2;
			this.menuItem44.Text = "学员分班信息";
			this.menuItem44.Click += new System.EventHandler(this.menuItem44_Click);
			// 
			// menuItem54
			// 
			this.menuItem54.Index = 3;
			this.menuItem54.Text = "-";
			// 
			// menuItem14
			// 
			this.menuItem14.Index = 4;
			this.menuItem14.Text = "学员资料查询";
			this.menuItem14.Click += new System.EventHandler(this.menuItem14_Click);
			// 
			// menuItem17
			// 
			this.menuItem17.Index = 5;
			this.menuItem17.Text = "学员选课查询";
			this.menuItem17.Click += new System.EventHandler(this.menuItem17_Click);
			// 
			// menuItem16
			// 
			this.menuItem16.Index = 6;
			this.menuItem16.Text = "学员分班查询";
			this.menuItem16.Click += new System.EventHandler(this.menuItem16_Click);
			// 
			// menuItem15
			// 
			this.menuItem15.Index = 7;
			this.menuItem15.Text = "学籍档案查询统计";
			this.menuItem15.Click += new System.EventHandler(this.menuItem15_Click_1);
			// 
			// menuItem50
			// 
			this.menuItem50.Index = 5;
			this.menuItem50.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					   this.menuItem51,
																					   this.menuItem9,
																					   this.menuItem55,
																					   this.menuItem22,
																					   this.menuItem29,
																					   this.menuItem13});
			this.menuItem50.Text = "考籍档案管理";
			// 
			// menuItem51
			// 
			this.menuItem51.Index = 0;
			this.menuItem51.Text = "考前申报管理";
			this.menuItem51.Click += new System.EventHandler(this.menuItem51_Click);
			// 
			// menuItem9
			// 
			this.menuItem9.Index = 1;
			this.menuItem9.Text = "考后成绩处理";
			this.menuItem9.Click += new System.EventHandler(this.menuItem9_Click);
			// 
			// menuItem55
			// 
			this.menuItem55.Index = 2;
			this.menuItem55.Text = "-";
			// 
			// menuItem22
			// 
			this.menuItem22.Index = 3;
			this.menuItem22.Text = "考前申报查询";