smcx.cs

这是本人学习语言来第一次写的程序

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

namespace 图书馆信息管理系统
{
	/// <summary>
	/// smcx 的摘要说明。
	/// </summary>
	public class smcx : 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.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label label5;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.TextBox textBox3;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.TextBox textBox5;
		private System.Windows.Forms.GroupBox groupBox2;
		private System.Windows.Forms.GroupBox groupBox3;
		private System.Windows.Forms.DataGrid dataGrid1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		private System.Data.OleDb.OleDbDataAdapter oleDbDataAdapter1;
		private System.Data.OleDb.OleDbCommand oleDbSelectCommand1;
		private System.Data.OleDb.OleDbCommand oleDbInsertCommand1;
		private System.Data.OleDb.OleDbCommand oleDbUpdateCommand1;
		private System.Data.OleDb.OleDbCommand oleDbDeleteCommand1;
		private System.Data.OleDb.OleDbConnection oleDbConnection1;
		private 图书馆信息管理系统.DataSet2 dataSet21;
		private System.Windows.Forms.Button button4;
		/// <summary>
		private string BH=null;	
		/// </summary>
		private System.ComponentModel.Container components = null;

		public smcx()
		{
			//
			// 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(smcx));
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.label1 = new System.Windows.Forms.Label();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.label4 = new System.Windows.Forms.Label();
			this.label5 = new System.Windows.Forms.Label();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.textBox3 = new System.Windows.Forms.TextBox();
			this.textBox4 = new System.Windows.Forms.TextBox();
			this.textBox5 = new System.Windows.Forms.TextBox();
			this.groupBox2 = new System.Windows.Forms.GroupBox();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.button4 = new System.Windows.Forms.Button();
			this.groupBox3 = new System.Windows.Forms.GroupBox();
			this.dataGrid1 = new System.Windows.Forms.DataGrid();
			this.dataSet21 = new 图书馆信息管理系统.DataSet2();
			this.oleDbDataAdapter1 = new System.Data.OleDb.OleDbDataAdapter();
			this.oleDbDeleteCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbConnection1 = new System.Data.OleDb.OleDbConnection();
			this.oleDbInsertCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbSelectCommand1 = new System.Data.OleDb.OleDbCommand();
			this.oleDbUpdateCommand1 = new System.Data.OleDb.OleDbCommand();
			this.groupBox1.SuspendLayout();
			this.groupBox2.SuspendLayout();
			this.groupBox3.SuspendLayout();
			((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet21)).BeginInit();
			this.SuspendLayout();
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.textBox1);
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Controls.Add(this.label3);
			this.groupBox1.Controls.Add(this.label4);
			this.groupBox1.Controls.Add(this.label5);
			this.groupBox1.Controls.Add(this.textBox2);
			this.groupBox1.Controls.Add(this.textBox3);
			this.groupBox1.Controls.Add(this.textBox4);
			this.groupBox1.Controls.Add(this.textBox5);
			this.groupBox1.Dock = System.Windows.Forms.DockStyle.Top;
			this.groupBox1.Location = new System.Drawing.Point(0, 0);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(936, 100);
			this.groupBox1.TabIndex = 0;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "查询条件";
			// 
			// textBox1
			// 
			this.textBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBox1.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.textBox1.Location = new System.Drawing.Point(80, 32);
			this.textBox1.MaxLength = 20;
			this.textBox1.Name = "textBox1";
			this.textBox1.Size = new System.Drawing.Size(112, 26);
			this.textBox1.TabIndex = 0;
			this.textBox1.Text = "";
			this.textBox1.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// label1
			// 
			this.label1.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label1.Location = new System.Drawing.Point(24, 39);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(56, 23);
			this.label1.TabIndex = 0;
			this.label1.Text = "编号：";
			// 
			// label2
			// 
			this.label2.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label2.Location = new System.Drawing.Point(202, 39);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(56, 23);
			this.label2.TabIndex = 0;
			this.label2.Text = "书名：";
			// 
			// label3
			// 
			this.label3.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label3.Location = new System.Drawing.Point(380, 39);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(56, 23);
			this.label3.TabIndex = 0;
			this.label3.Text = "类别：";
			// 
			// label4
			// 
			this.label4.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label4.Location = new System.Drawing.Point(558, 39);
			this.label4.Name = "label4";
			this.label4.Size = new System.Drawing.Size(56, 23);
			this.label4.TabIndex = 0;
			this.label4.Text = "作者：";
			// 
			// label5
			// 
			this.label5.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label5.Location = new System.Drawing.Point(736, 39);
			this.label5.Name = "label5";
			this.label5.Size = new System.Drawing.Size(72, 23);
			this.label5.TabIndex = 0;
			this.label5.Text = "出版社：";
			// 
			// textBox2
			// 
			this.textBox2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBox2.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.textBox2.Location = new System.Drawing.Point(264, 32);
			this.textBox2.MaxLength = 20;
			this.textBox2.Name = "textBox2";
			this.textBox2.Size = new System.Drawing.Size(112, 26);
			this.textBox2.TabIndex = 1;
			this.textBox2.Text = "";
			this.textBox2.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// textBox3
			// 
			this.textBox3.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBox3.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.textBox3.Location = new System.Drawing.Point(440, 32);
			this.textBox3.MaxLength = 20;
			this.textBox3.Name = "textBox3";
			this.textBox3.Size = new System.Drawing.Size(112, 26);
			this.textBox3.TabIndex = 2;
			this.textBox3.Text = "";
			this.textBox3.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// textBox4
			// 
			this.textBox4.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBox4.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.textBox4.Location = new System.Drawing.Point(624, 32);
			this.textBox4.MaxLength = 20;
			this.textBox4.Name = "textBox4";
			this.textBox4.Size = new System.Drawing.Size(112, 26);
			this.textBox4.TabIndex = 3;
			this.textBox4.Text = "";
			this.textBox4.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// textBox5
			// 
			this.textBox5.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.textBox5.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.textBox5.Location = new System.Drawing.Point(808, 32);
			this.textBox5.MaxLength = 20;
			this.textBox5.Name = "textBox5";
			this.textBox5.Size = new System.Drawing.Size(112, 26);
			this.textBox5.TabIndex = 4;
			this.textBox5.Text = "";
			this.textBox5.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// groupBox2
			// 
			this.groupBox2.Controls.Add(this.button1);
			this.groupBox2.Controls.Add(this.button2);
			this.groupBox2.Controls.Add(this.button3);
			this.groupBox2.Controls.Add(this.button4);
			this.groupBox2.Dock = System.Windows.Forms.DockStyle.Top;
			this.groupBox2.Location = new System.Drawing.Point(0, 100);
			this.groupBox2.Name = "groupBox2";
			this.groupBox2.Size = new System.Drawing.Size(936, 100);
			this.groupBox2.TabIndex = 1;
			this.groupBox2.TabStop = false;
			this.groupBox2.Text = "操作";
			// 
			// button1
			// 
			this.button1.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button1.Location = new System.Drawing.Point(273, 30);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(75, 40);
			this.button1.TabIndex = 5;
			this.button1.Text = "查 找";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			this.button1.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// button2
			// 
			this.button2.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button2.Location = new System.Drawing.Point(378, 30);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(75, 40);
			this.button2.TabIndex = 6;
			this.button2.Text = "清 空";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			this.button2.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// button3
			// 
			this.button3.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button3.Location = new System.Drawing.Point(483, 30);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(75, 40);
			this.button3.TabIndex = 7;
			this.button3.Text = "所 有";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			this.button3.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// button4
			// 
			this.button4.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button4.Location = new System.Drawing.Point(588, 30);
			this.button4.Name = "button4";
			this.button4.Size = new System.Drawing.Size(75, 40);
			this.button4.TabIndex = 8;
			this.button4.Text = "返 回";
			this.button4.Click += new System.EventHandler(this.button4_Click);
			this.button4.KeyDown += new System.Windows.Forms.KeyEventHandler(this.button4_KeyDown);
			// 
			// groupBox3
			// 
			this.groupBox3.Controls.Add(this.dataGrid1);
			this.groupBox3.Dock = System.Windows.Forms.DockStyle.Fill;
			this.groupBox3.Location = new System.Drawing.Point(0, 200);
			this.groupBox3.Name = "groupBox3";
			this.groupBox3.Size = new System.Drawing.Size(936, 222);
			this.groupBox3.TabIndex = 2;
			this.groupBox3.TabStop = false;
			this.groupBox3.Text = "记录显示";
			// 
			// dataGrid1
			// 
			this.dataGrid1.DataMember = "";
			this.dataGrid1.DataSource = this.dataSet21.tsxxb;
			this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
			this.dataGrid1.Location = new System.Drawing.Point(3, 17);
			this.dataGrid1.Name = "dataGrid1";
			this.dataGrid1.ReadOnly = true;
			this.dataGrid1.Size = new System.Drawing.Size(930, 202);
			this.dataGrid1.TabIndex = 0;
			// 
			// dataSet21
			// 
			this.dataSet21.DataSetName = "DataSet2";
			this.dataSet21.Locale = new System.Globalization.CultureInfo("zh-CN");
			// 
			// oleDbDataAdapter1
			//