frmlibrary.cs

小型图书管理系统,C#和SQlServer构建,Winform桌面应用程序

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

namespace library.Forms
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class frmLibrary : System.Windows.Forms.Form
	{
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem mnuOption;
		private System.Windows.Forms.MenuItem mnuHelp;
		private System.Windows.Forms.MenuItem mnuRegister;
		private System.Windows.Forms.MenuItem mnuUser;
		private System.Windows.Forms.MenuItem mnuBook;
		private System.Windows.Forms.MenuItem mnuLendOK;
		private System.Windows.Forms.MenuItem mnuLendNo;
		private System.Windows.Forms.MenuItem mnuReturn;
		private System.Windows.Forms.MenuItem mnuExit;
		private System.Windows.Forms.MenuItem mnuAbout;
		private System.Windows.Forms.MenuItem mnuLend;
		private System.Windows.Forms.MenuItem mnusp1;
		private System.Windows.Forms.MenuItem mnusp2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public frmLibrary()
		{
			//
			// 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()
		{
			this.mainMenu1 = new System.Windows.Forms.MainMenu();
			this.mnuOption = new System.Windows.Forms.MenuItem();
			this.mnuRegister = new System.Windows.Forms.MenuItem();
			this.mnusp1 = new System.Windows.Forms.MenuItem();
			this.mnuUser = new System.Windows.Forms.MenuItem();
			this.mnuBook = new System.Windows.Forms.MenuItem();
			this.mnuLendOK = new System.Windows.Forms.MenuItem();
			this.mnuLendNo = new System.Windows.Forms.MenuItem();
			this.mnuLend = new System.Windows.Forms.MenuItem();
			this.mnuReturn = new System.Windows.Forms.MenuItem();
			this.mnusp2 = new System.Windows.Forms.MenuItem();
			this.mnuExit = new System.Windows.Forms.MenuItem();
			this.mnuHelp = new System.Windows.Forms.MenuItem();
			this.mnuAbout = new System.Windows.Forms.MenuItem();
			// 
			// mainMenu1
			// 
			this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.mnuOption,
																					  this.mnuHelp});
			// 
			// mnuOption
			// 
			this.mnuOption.Index = 0;
			this.mnuOption.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.mnuRegister,
																					  this.mnusp1,
																					  this.mnuUser,
																					  this.mnuBook,
																					  this.mnuLend,
																					  this.mnuReturn,
																					  this.mnusp2,
																					  this.mnuExit});
			this.mnuOption.Text = "选项";
			// 
			// mnuRegister
			// 
			this.mnuRegister.Index = 0;
			this.mnuRegister.Text = "新用户注册";
			this.mnuRegister.Click += new System.EventHandler(this.mnuRegister_Click);
			// 
			// mnusp1
			// 
			this.mnusp1.Index = 1;
			this.mnusp1.Text = "-";
			// 
			// mnuUser
			// 
			this.mnuUser.Index = 2;
			this.mnuUser.Text = "用户";
			this.mnuUser.Click += new System.EventHandler(this.mnuUser_Click);
			// 
			// mnuBook
			// 
			this.mnuBook.Index = 3;
			this.mnuBook.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					this.mnuLendOK,
																					this.mnuLendNo});
			this.mnuBook.Text = "图书";
			// 
			// mnuLendOK
			// 
			this.mnuLendOK.Index = 0;
			this.mnuLendOK.Text = "可以借阅";
			this.mnuLendOK.Click += new System.EventHandler(this.mnuLendOK_Click);
			// 
			// mnuLendNo
			// 
			this.mnuLendNo.Index = 1;
			this.mnuLendNo.Text = "已经借出";
			this.mnuLendNo.Click += new System.EventHandler(this.mnuLendNo_Click);
			// 
			// mnuLend
			// 
			this.mnuLend.Index = 4;
			this.mnuLend.Text = "借书";
			this.mnuLend.Click += new System.EventHandler(this.mnuLend_Click);
			// 
			// mnuReturn
			// 
			this.mnuReturn.Index = 5;
			this.mnuReturn.Text = "返还我的图书";
			this.mnuReturn.Click += new System.EventHandler(this.mnuReturn_Click);
			// 
			// mnusp2
			// 
			this.mnusp2.Index = 6;
			this.mnusp2.Text = "-";
			// 
			// mnuExit
			// 
			this.mnuExit.Index = 7;
			this.mnuExit.Text = "退出";
			this.mnuExit.Click += new System.EventHandler(this.mnuExit_Click);
			// 
			// mnuHelp
			// 
			this.mnuHelp.Index = 1;
			this.mnuHelp.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					this.mnuAbout});
			this.mnuHelp.Text = "帮助";
			// 
			// mnuAbout
			// 
			this.mnuAbout.Index = 0;
			this.mnuAbout.Text = "关于...";
			this.mnuAbout.Click += new System.EventHandler(this.mnuAbout_Click);
			// 
			// frmLibrary
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(536, 366);
			this.IsMdiContainer = true;
			this.Menu = this.mainMenu1;
			this.Name = "frmLibrary";
			this.Text = "图书管理系统";

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new frmLibrary());
		}

		private void mnuRegister_Click(object sender, System.EventArgs e)
		{
			foreach(Form f in this.MdiChildren)
			{
				if(f is frmRegist)
				{
					f.Dispose();
				}
			}

			frmRegist fr = new frmRegist();
			fr.MdiParent = this;
			fr.Show();
		}

		private void mnuUser_Click(object sender, System.EventArgs e)
		{	
			foreach(Form f in this.MdiChildren)
			{
				if(f is frmData)
				{
					f.Dispose();
				}
			}
	
			frmData fd = new frmData();
			frmData.strCommond = "user";
			fd.MdiParent = this;
			fd.Text = "用户";
			fd.Show();
		}

		private void mnuLendOK_Click(object sender, System.EventArgs e)
		{
			foreach(Form f in this.MdiChildren)
			{
				if(f is frmData)
				{
					f.Dispose();
				}
			}
	
			frmData fd = new frmData();
			frmData.strCommond = "bookOK";
			fd.MdiParent = this;
			fd.Text = "可以借阅的书";
			fd.Show();
		}

		private void mnuLendNo_Click(object sender, System.EventArgs e)
		{
			foreach(Form f in this.MdiChildren)
			{
				if(f is frmData)
				{
					f.Dispose();
				}
			}
	
			frmData fd = new frmData();
			frmData.strCommond = "bookNO";

			fd.MdiParent = this;
			fd.Text = "已经借出的书";
			fd.Show();
		}

		private void mnuLend_Click(object sender, System.EventArgs e)
		{
			foreach(Form f in this.MdiChildren)
			{
				if(f is frmLendReturn || f is frmData)
				{
					f.Dispose();
				}
			}
			frmLendReturn.state = "lend";
	
			frmLendReturn fl = new frmLendReturn();
			fl.MdiParent = this;
			fl.Show();
		}

		private void mnuReturn_Click(object sender, System.EventArgs e)
		{
			foreach(Form f in this.MdiChildren)
			{
				if(f is frmLendReturn || f is frmData)
				{
					f.Dispose();
				}
			}
			frmLendReturn.state = "return";
	
			frmLendReturn fl = new frmLendReturn();
			fl.MdiParent = this;
			fl.Show();
		}

		private void mnuExit_Click(object sender, System.EventArgs e)
		{
			this.Dispose();
		}

		private void mnuAbout_Click(object sender, System.EventArgs e)
		{
			MessageBox.Show("作者：于利标\n单位：北京科技大学\n版本：1.0.0", "关于图书管理系统");
		}
	}
}