C# 读写access数据库

using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;namespace MyDB{/// <summary>/// Form1 的摘要说明。/// </summary>public class Form1 : System.Windows.Forms.Form{private System.Windows.Forms.GroupBox groupBox1;private System.Windows.Forms.Button button1;private System.Windows.Forms.Button button2;private System.Windows.Forms.Button button3;private System.Windows.Forms.Button button4;private System.Windows.Forms.Button button5;private System.Windows.Forms.Button button6;private System.Windows.Forms.Button button7;private System.Windows.Forms.Button button8;private System.Windows.Forms.Button button9;private System.Windows.Forms.Label label1;private System.Windows.Forms.TextBox textBox1;private System.Windows.Forms.TextBox textBox2;private System.Windows.Forms.Label label2;private System.Windows.Forms.TextBox textBox3;private System.Windows.Forms.Label label3;private System.Windows.Forms.TextBox textBox4;private System.Windows.Forms.Label label4;private System.Windows.Forms.TextBox textBox5;private System.Windows.Forms.Label label5;private System.Windows.Forms.TextBox textBox6;private System.Windows.Forms.Label label6;private System.Windows.Forms.TextBox textBox7;private System.Windows.Forms.Label label7;private System.Windows.Forms.TextBox textBox8;private System.Windows.Forms.Label label8;private System.Windows.Forms.TextBox textBox9;private System.Windows.Forms.Label label9;private System.Windows.Forms.TextBox textBox10;private System.Windows.Forms.Label label10;private System.Windows.Forms.TextBox textBox11;private System.Windows.Forms.Label label11;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 BindingManagerBase MyBind;private System.Data.OleDb.OleDbCommand oleDbCommand1;private System.Data.DataSet dataSet1;/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.Container components = null;public Form1(){//// 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.groupBox1 = new System.Windows.Forms.GroupBox();this.textBox9 = new System.Windows.Forms.TextBox();this.label9 = new System.Windows.Forms.Label();this.textBox10 = new System.Windows.Forms.TextBox();this.label10 = new System.Windows.Forms.Label();this.textBox11 = new System.Windows.Forms.TextBox();this.label11 = new System.Windows.Forms.Label();this.textBox8 = new System.Windows.Forms.TextBox();this.label8 = new System.Windows.Forms.Label();this.textBox7 = new System.Windows.Forms.TextBox();this.label7 = new System.Windows.Forms.Label();this.textBox6 = new System.Windows.Forms.TextBox();this.label6 = new System.Windows.Forms.Label();this.textBox5 = new System.Windows.Forms.TextBox();this.label5 = new System.Windows.Forms.Label();this.textBox4 = new System.Windows.Forms.TextBox();this.label4 = new System.Windows.Forms.Label();this.textBox3 = new System.Windows.Forms.TextBox();this.label3 = new System.Windows.Forms.Label();this.textBox2 = new System.Windows.Forms.TextBox();this.label2 = new System.Windows.Forms.Label();this.textBox1 = new System.Windows.Forms.TextBox();this.label1 = new System.Windows.Forms.Label();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.button5 = new System.Windows.Forms.Button();this.button6 = new System.Windows.Forms.Button();this.button7 = new System.Windows.Forms.Button();this.button8 = new System.Windows.Forms.Button();this.button9 = new System.Windows.Forms.Button();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.oleDbCommand1 = new System.Data.OleDb.OleDbCommand();this.dataSet1 = new System.Data.DataSet();this.groupBox1.SuspendLayout();((System.ComponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();this.SuspendLayout();// // groupBox1// this.groupBox1.Controls.Add(this.textBox9);this.groupBox1.Controls.Add(this.label9);this.groupBox1.Controls.Add(this.textBox10);this.groupBox1.Controls.Add(this.label10);this.groupBox1.Controls.Add(this.textBox11);this.groupBox1.Controls.Add(this.label11);this.groupBox1.Controls.Add(this.textBox8);this.groupBox1.Controls.Add(this.label8);this.groupBox1.Controls.Add(this.textBox7);this.groupBox1.Controls.Add(this.label7);this.groupBox1.Controls.Add(this.textBox6);this.groupBox1.Controls.Add(this.label6);this.groupBox1.Controls.Add(this.textBox5);this.groupBox1.Controls.Add(this.label5);this.groupBox1.Controls.Add(this.textBox4);this.groupBox1.Controls.Add(this.label4);this.groupBox1.Controls.Add(this.textBox3);this.groupBox1.Controls.Add(this.label3);this.groupBox1.Controls.Add(this.textBox2);this.groupBox1.Controls.Add(this.label2);this.groupBox1.Controls.Add(this.textBox1);this.groupBox1.Controls.Add(this.label1);this.groupBox1.Location = new System.Drawing.Point(8, 8);this.groupBox1.Name = "groupBox1";this.groupBox1.Size = new System.Drawing.Size(352, 224);this.groupBox1.TabIndex = 0;this.groupBox1.TabStop = false;this.groupBox1.Text = "数据库信息";// // textBox9// this.textBox9.Location = new System.Drawing.Point(232, 192);this.textBox9.Name = "textBox9";this.textBox9.Size = new System.Drawing.Size(112, 21);this.textBox9.TabIndex = 21;this.textBox9.Text = "";// // label9// this.label9.Location = new System.Drawing.Point(184, 200);this.label9.Name = "label9";this.label9.Size = new System.Drawing.Size(48, 16);this.label9.TabIndex = 20;this.label9.Text = "传真：";// // textBox10// this.textBox10.Location = new System.Drawing.Point(72, 192);this.textBox10.Name = "textBox10";this.textBox10.Size = new System.Drawing.Size(104, 21);this.textBox10.TabIndex = 19;this.textBox10.Text = "";// // label10// this.label10.Location = new System.Drawing.Point(8, 200);this.label10.Name = "label10";this.label10.Size = new System.Drawing.Size(48, 16);this.label10.TabIndex = 18;this.label10.Text = "电话：";// // textBox11// this.textBox11.Location = new System.Drawing.Point(232, 168);this.textBox11.Name = "textBox11";this.textBox11.Size = new System.Drawing.Size(112, 21);this.textBox11.TabIndex = 17;this.textBox11.Text = "";// // label11// this.label11.Location = new System.Drawing.Point(184, 176);this.label11.Name = "label11";this.label11.Size = new System.Drawing.Size(48, 16);this.label11.TabIndex = 16;this.label11.Text = "国家：";// // textBox8// this.textBox8.Location = new System.Drawing.Point(72, 168);this.textBox8.Name = "textBox8";this.textBox8.Size = new System.Drawing.Size(104, 21);this.textBox8.TabIndex = 15;this.textBox8.Text = "";// // label8// this.label8.Location = new System.Drawing.Point(8, 176);this.label8.Name = "label8";this.label8.Size = new System.Drawing.Size(72, 16);this.label8.TabIndex = 14;this.label8.Text = "邮政编码：";// // textBox7// this.textBox7.Location = new System.Drawing.Point(232, 144);this.textBox7.Name = "textBox7";this.textBox7.Size = new System.Drawing.Size(112, 21);this.textBox7.TabIndex = 13;this.textBox7.Text = "";// // label7// this.label7.Location = new System.Drawing.Point(184, 152);this.label7.Name = "label7";this.label7.Size = new System.Drawing.Size(48, 16);this.label7.TabIndex = 12;this.label7.Text = "地区：";// // textBox6// this.textBox6.Location = new System.Drawing.Point(72, 144);this.textBox6.Name = "textBox6";this.textBox6.Size = new System.Drawing.Size(104, 21);this.textBox6.TabIndex = 11;this.textBox6.Text = "";// // label6// this.label6.Location = new System.Drawing.Point(8, 152);this.label6.Name = "label6";this.label6.Size = new System.Drawing.Size(48, 16);this.label6.TabIndex = 10;this.label6.Text = "城市：";// // textBox5// this.textBox5.Location = new System.Drawing.Point(88, 120);this.textBox5.Name = "textBox5";this.textBox5.Size = new System.Drawing.Size(256, 21);this.textBox5.TabIndex = 9;this.textBox5.Text = "";// // label5// this.label5.Location = new System.Drawing.Point(8, 128);this.label5.Name = "label5";this.label5.Size = new System.Drawing.Size(72, 16);this.label5.TabIndex = 8;this.label5.Text = "联系地址：";// // textBox4// this.textBox4.Location = new System.Drawing.Point(88, 96);this.textBox4.Name = "textBox4";this.textBox4.Size = new System.Drawing.Size(256, 21);this.textBox4.TabIndex = 7;this.textBox4.Text = "";// // label4// this.label4.Location = new System.Drawing.Point(8, 104);this.label4.Name = "label4";this.label4.Size = new System.Drawing.Size(80, 16);this.label4.TabIndex = 6;this.label4.Text = "联系人头衔：";// // textBox3// this.textBox3.Location = new System.Drawing.Point(88, 72);this.textBox3.Name = "textBox3";this.textBox3.Size = new System.Drawing.Size(256, 21);this.textBox3.TabIndex = 5;this.textBox3.Text = "";// // label3// this.label3.Location = new System.Drawing.Point(8, 80);this.label3.Name = "label3";this.label3.Size = new System.Drawing.Size(80, 16);this.label3.TabIndex = 4;this.label3.Text = "联系人姓名：";// // textBox2// this.textBox2.Location = new System.Drawing.Point(88, 48);this.textBox2.Name = "textBox2";this.textBox2.Size = new System.Drawing.Size(256, 21);this.textBox2.TabIndex = 3;this.textBox2.Text = "";// // label2// this.label2.Location = new System.Drawing.Point(8, 56);this.label2.Name = "label2";this.label2.Size = new System.Drawing.Size(72, 16);this.label2.TabIndex = 2;this.label2.Text = "公司名称：";// // textBox1// this.textBox1.Location = new System.Drawing.Point(88, 24);this.textBox1.Name = "textBox1";this.textBox1.Size = new System.Drawing.Size(256, 21);this.textBox1.TabIndex = 1;this.textBox1.Text = "";// // label1// this.label1.Location = new System.Drawing.Point(8, 32);this.label1.Name = "label1";this.label1.Size = new System.Drawing.Size(56, 16);this.label1.TabIndex = 0;this.label1.Text = "客户ID：";// // button1// this.button1.Location = new System.Drawing.Point(368, 16);this.button1.Name = "button1";this.button1.TabIndex = 1;this.button1.Text = "第一条记录";this.button1.Click = new System.EventHandler(this.button1_Click);// // button2// this.button2.Location = new System.Drawing.Point(368, 40);this.button2.Name = "button2";this.button2.TabIndex = 2;this.button2.Text = "前一条记录";this.button2.Click = new System.EventHandler(this.button2_Click);// // button3// this.button3.Location = new System.Drawing.Point(368, 64);this.button3.Name = "button3";this.button3.TabIndex = 3;this.button3.Text = "后一条记录";this.button3.Click = new System.EventHandler(this.button3_Click);// // button4// this.button4.Location = new System.Drawing.Point(368, 88);this.button4.Name = "button4";this.button4.TabIndex = 4;this.button4.Text = "末一条记录";this.button4.Click = new System.EventHandler(this.button4_Click);// // button5// this.button5.Location = new System.Drawing.Point(368, 112);this.button5.Name = "button5";this.button5.TabIndex = 5;this.button5.Text = "新建记录";this.button5.Click = new System.EventHandler(this.button5_Click);// // button6// this.button6.Location = new System.Drawing.Point(368, 136);this.button6.Name = "button6";this.button6.TabIndex = 6;this.button6.Text = "增加记录";this.button6.Click = new System.EventHandler(this.button6_Click);// // button7// this.button7.Location = new System.Drawing.Point(368, 160);this.button7.Name = "button7";this.button7.TabIndex = 7;this.button7.Text = "修改记录";this.button7.Click = new System.EventHandler(this.button7_Click);// // button8// this.button8.Location = new System.Drawing.Point(368, 184);this.button8.Name = "button8";this.button8.TabIndex = 2;this.button8.Text = "删除记录";this.button8.Click = new System.EventHandler(this.button8_Click);// // button9// this.button9.Location = new System.Drawing.Point(368, 208);this.button9.Name = "button9";this.button9.TabIndex = 8;this.button9.Text = "关闭程序";this.button9.Click = new System.EventHandler(this.button9_Click);// // oleDbDataAdapter1// this.oleDbDataAdapter1.DeleteCommand = this.oleDbDeleteCommand1;this.oleDbDataAdapter1.InsertCommand = this.oleDbInsertCommand1;this.oleDbDataAdapter1.SelectCommand = this.oleDbSelectCommand1;this.oleDbDataAdapter1.TableMappings.AddRange(new System.Data.Common.DataTableMapping[] {new System.Data.Common.DataTableMapping("Table", "客户", new System.Data.Common.DataColumnMapping[] { new System.Data.Common.DataColumnMapping("城市", "城市"), new System.Data.Common.DataColumnMapping("传真", "传真"), new System.Data.Common.DataColumnMapping("地区", "地区"), new System.Data.Common.DataColumnMapping("地址", "地址"), new System.Data.Common.DataColumnMapping("电话", "电话"), new System.Data.Common.DataColumnMapping("公司名称", "公司名称"), new System.Data.Common.DataColumnMapping("国家", "国家"), new System.Data.Common.DataColumnMapping("客户ID", "客户ID"), new System.Data.Common.DataColumnMapping("联系人头衔", "联系人头衔"), new System.Data.Common.DataColumnMapping("联系人姓名", "联系人姓名"), new System.Data.Common.DataColumnMapping("邮政编码", "邮政编码")})});this.oleDbDataAdapter1.UpdateCommand = this.oleDbUpdateCommand1;// // oleDbDeleteCommand1// this.oleDbDeleteCommand1.CommandText = @"DELETE FROM 客户 WHERE (客户ID = ?) AND (传真 = ? OR ? IS NULL AND 传真 IS NULL) AND (公司名称 = ?) AND (国家 = ? OR ? IS NULL AND 国家 IS NULL) AND (地区 = ? OR ? IS NULL AND 地区 IS NULL) AND (地址 = ? OR ? IS NULL AND 地址 IS NULL) AND (城市 = ? OR ? IS NULL AND 城市 IS NULL) AND (电话 = ? OR ? IS NULL AND 电话 IS NULL) AND (联系人头衔 = ? OR ? IS NULL AND 联系人头衔 IS NULL) AND (联系人姓名 = ? OR ? IS NULL AND 联系人姓名 IS NULL) AND (邮政编码 = ? OR ? IS NULL AND 邮政编码 IS NULL)";this.oleDbDeleteCommand1.Connection = this.oleDbConnection1;this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_客户ID", System.Data.OleDb.OleDbType.VarWChar, 5, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "客户ID", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_传真", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "传真", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_传真1", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "传真", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_公司名称", System.Data.OleDb.OleDbType.VarWChar, 40, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "公司名称", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_国家", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "国家", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_国家1", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "国家", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地区", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地区", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地区1", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地区", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地址", System.Data.OleDb.OleDbType.VarWChar, 60, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地址", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地址1", System.Data.OleDb.OleDbType.VarWChar, 60, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地址", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_城市", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "城市", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_城市1", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "城市", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_电话", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "电话", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_电话1", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "电话", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人头衔", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人头衔", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人头衔1", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人头衔", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人姓名", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人姓名", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人姓名1", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人姓名", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_邮政编码", System.Data.OleDb.OleDbType.VarWChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "邮政编码", System.Data.DataRowVersion.Original, null));this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_邮政编码1", System.Data.OleDb.OleDbType.VarWChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "邮政编码", System.Data.DataRowVersion.Original, null));// // oleDbConnection1// this.oleDbConnection1.ConnectionString = @"Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Registry Path=;Jet OLEDB:Database Locking Mode=1;Jet OLEDB:Database Password=;Data Source=""Northwind.mdb"";Password=;Jet OLEDB:Engine Type=5;Jet OLEDB:Global Bulk Transactions=1;Provider=""Microsoft.Jet.OLEDB.4.0"";Jet OLEDB:System database=;Jet OLEDB:SFP=False;Extended Properties=;Mode=Share Deny None;Jet OLEDB:New Database Password=;Jet OLEDB:Create System Database=False;Jet OLEDB:Don't Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;User ID=Admin;Jet OLEDB:Encrypt Database=False";// // oleDbInsertCommand1// this.oleDbInsertCommand1.CommandText = "INSERT INTO 客户(城市, 传真, 地区, 地址, 电话, 公司名称, 国家, 客户ID, 联系人头衔, 联系人姓名, 邮政编码) VALUES (?," " ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";this.oleDbInsertCommand1.Connection = this.oleDbConnection1;this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("城市", System.Data.OleDb.OleDbType.VarWChar, 15, "城市"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("传真", System.Data.OleDb.OleDbType.VarWChar, 24, "传真"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("地区", System.Data.OleDb.OleDbType.VarWChar, 15, "地区"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("地址", System.Data.OleDb.OleDbType.VarWChar, 60, "地址"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("电话", System.Data.OleDb.OleDbType.VarWChar, 24, "电话"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("公司名称", System.Data.OleDb.OleDbType.VarWChar, 40, "公司名称"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("国家", System.Data.OleDb.OleDbType.VarWChar, 15, "国家"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("客户ID", System.Data.OleDb.OleDbType.VarWChar, 5, "客户ID"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("联系人头衔", System.Data.OleDb.OleDbType.VarWChar, 30, "联系人头衔"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("联系人姓名", System.Data.OleDb.OleDbType.VarWChar, 30, "联系人姓名"));this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("邮政编码", System.Data.OleDb.OleDbType.VarWChar, 10, "邮政编码"));// // oleDbSelectCommand1// this.oleDbSelectCommand1.CommandText = "SELECT 城市, 传真, 地区, 地址, 电话, 公司名称, 国家, 客户ID, 联系人头衔, 联系人姓名, 邮政编码 FROM 客户";this.oleDbSelectCommand1.Connection = this.oleDbConnection1;// // oleDbUpdateCommand1// this.oleDbUpdateCommand1.CommandText = @"UPDATE 客户 SET 城市 = ?, 传真 = ?, 地区 = ?, 地址 = ?, 电话 = ?, 公司名称 = ?, 国家 = ?, 客户ID = ?, 联系人头衔 = ?, 联系人姓名 = ?, 邮政编码 = ? WHERE (客户ID = ?) AND (传真 = ? OR ? IS NULL AND 传真 IS NULL) AND (公司名称 = ?) AND (国家 = ? OR ? IS NULL AND 国家 IS NULL) AND (地区 = ? OR ? IS NULL AND 地区 IS NULL) AND (地址 = ? OR ? IS NULL AND 地址 IS NULL) AND (城市 = ? OR ? IS NULL AND 城市 IS NULL) AND (电话 = ? OR ? IS NULL AND 电话 IS NULL) AND (联系人头衔 = ? OR ? IS NULL AND 联系人头衔 IS NULL) AND (联系人姓名 = ? OR ? IS NULL AND 联系人姓名 IS NULL) AND (邮政编码 = ? OR ? IS NULL AND 邮政编码 IS NULL)";this.oleDbUpdateCommand1.Connection = this.oleDbConnection1;this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("城市", System.Data.OleDb.OleDbType.VarWChar, 15, "城市"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("传真", System.Data.OleDb.OleDbType.VarWChar, 24, "传真"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("地区", System.Data.OleDb.OleDbType.VarWChar, 15, "地区"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("地址", System.Data.OleDb.OleDbType.VarWChar, 60, "地址"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("电话", System.Data.OleDb.OleDbType.VarWChar, 24, "电话"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("公司名称", System.Data.OleDb.OleDbType.VarWChar, 40, "公司名称"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("国家", System.Data.OleDb.OleDbType.VarWChar, 15, "国家"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("客户ID", System.Data.OleDb.OleDbType.VarWChar, 5, "客户ID"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("联系人头衔", System.Data.OleDb.OleDbType.VarWChar, 30, "联系人头衔"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("联系人姓名", System.Data.OleDb.OleDbType.VarWChar, 30, "联系人姓名"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("邮政编码", System.Data.OleDb.OleDbType.VarWChar, 10, "邮政编码"));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_客户ID", System.Data.OleDb.OleDbType.VarWChar, 5, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "客户ID", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_传真", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "传真", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_传真1", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "传真", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_公司名称", System.Data.OleDb.OleDbType.VarWChar, 40, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "公司名称", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_国家", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "国家", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_国家1", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "国家", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地区", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地区", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地区1", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地区", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地址", System.Data.OleDb.OleDbType.VarWChar, 60, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地址", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_地址1", System.Data.OleDb.OleDbType.VarWChar, 60, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "地址", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_城市", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "城市", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_城市1", System.Data.OleDb.OleDbType.VarWChar, 15, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "城市", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_电话", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "电话", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_电话1", System.Data.OleDb.OleDbType.VarWChar, 24, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "电话", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人头衔", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人头衔", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人头衔1", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人头衔", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人姓名", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人姓名", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_联系人姓名1", System.Data.OleDb.OleDbType.VarWChar, 30, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "联系人姓名", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_邮政编码", System.Data.OleDb.OleDbType.VarWChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "邮政编码", System.Data.DataRowVersion.Original, null));this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_邮政编码1", System.Data.OleDb.OleDbType.VarWChar, 10, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "邮政编码", System.Data.DataRowVersion.Original, null));// // dataSet1// this.dataSet1.DataSetName = "NewDataSet";this.dataSet1.Locale = new System.Globalization.CultureInfo("zh-CN");// // Form1// this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);this.ClientSize = new System.Drawing.Size(448, 238);this.Controls.Add(this.button9);this.Controls.Add(this.button7);this.Controls.Add(this.button6);this.Controls.Add(this.button5);this.Controls.Add(this.button4);this.Controls.Add(this.button3);this.Controls.Add(this.button2);this.Controls.Add(this.button1);this.Controls.Add(this.groupBox1);this.Controls.Add(this.button8);this.MaximizeBox = false;this.Name = "Form1";this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;this.Text = "演示读写ACCESS数据库";this.Load = new System.EventHandler(this.Form1_Load);this.groupBox1.ResumeLayout(false);((System.ComponentModel.ISupportInitialize)(this.dataSet1)).EndInit();this.ResumeLayout(false);}#endregion/// <summary>/// 应用程序的主入口点。/// </summary>[STAThread]static void Main() {Application.Run(new Form1());}private void Form1_Load(object sender, System.EventArgs e){//初始化数据集try{this.oleDbDataAdapter1.Fill(this.dataSet1,"客户");this.textBox1.DataBindings.Add("Text",this.dataSet1,"客户.客户ID");this.textBox2.DataBindings.Add("Text",this.dataSet1,"客户.公司名称");this.textBox3.DataBindings.Add("Text",this.dataSet1,"客户.联系人姓名");this.textBox4.DataBindings.Add("Text",this.dataSet1,"客户.联系人头衔");this.textBox5.DataBindings.Add("Text",this.dataSet1,"客户.地址");this.textBox6.DataBindings.Add("Text",this.dataSet1,"客户.城市");this.textBox7.DataBindings.Add("Text",this.dataSet1,"客户.地区");this.textBox8.DataBindings.Add("Text",this.dataSet1,"客户.邮政编码");this.textBox9.DataBindings.Add("Text",this.dataSet1,"客户.国家");this.textBox10.DataBindings.Add("Text",this.dataSet1,"客户.电话");this.textBox11.DataBindings.Add("Text",this.dataSet1,"客户.传真");this.MyBind=this.BindingContext[this.dataSet1,"客户"];}catch(Exception Err){MessageBox.Show("打开数据库表错误：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);return;}}private void button1_Click(object sender, System.EventArgs e){//第一条记录this.MyBind.Position=0;}private void button2_Click(object sender, System.EventArgs e){//前一条记录if(this.MyBind.Position==0){MessageBox.Show("已经是第一条记录","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);return;}elsethis.MyBind.Position--;}private void button3_Click(object sender, System.EventArgs e){//后一条记录if(this.MyBind.Position==this.MyBind.Count-1){MessageBox.Show("已经是末一条记录","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);return;}elsethis.MyBind.Position ;}private void button4_Click(object sender, System.EventArgs e){//末一条记录this.MyBind.Position=this.MyBind.Count-1;}private void button5_Click(object sender, System.EventArgs e){//新建记录this.textBox1.Text="";this.textBox2.Text="";this.textBox3.Text="";this.textBox4.Text="";this.textBox5.Text="";this.textBox6.Text="";this.textBox7.Text="";this.textBox8.Text="";this.textBox9.Text="";this.textBox10.Text="";this.textBox11.Text="";}private void button6_Click(object sender, System.EventArgs e){//增加记录if(this.textBox1.Text.Length<1|this.textBox2.Text.Length<1|this.textBox3.Text.Length<1|this.textBox4.Text.Length<1|this.textBox5.Text.Length<1|this.textBox6.Text.Length<1|this.textBox7.Text.Length<1|this.textBox8.Text.Length<1|this.textBox9.Text.Length<1|this.textBox10.Text.Length<1|this.textBox11.Text.Length<1){MessageBox.Show("客户所有信息必须填写！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);return;}try{string StrSQL="INSERT INTO 客户(客户ID,公司名称,联系人姓名,联系人头衔,地址,城市,地区,邮政编码,国家,电话,传真)VALUES('";StrSQL =this.textBox1.Text "','";StrSQL =this.textBox2.Text "','";StrSQL =this.textBox3.Text "','";StrSQL =this.textBox4.Text "','";StrSQL =this.textBox5.Text "','";StrSQL =this.textBox6.Text "','";StrSQL =this.textBox7.Text "','";StrSQL =this.textBox8.Text "','";StrSQL =this.textBox9.Text "','";StrSQL =this.textBox10.Text "','";StrSQL =this.textBox11.Text "')";this.oleDbCommand1.CommandText=StrSQL;this.oleDbCommand1.Connection=this.oleDbConnection1;//打开数据库连接this.oleDbConnection1.Open();//执行SQL命令this.oleDbCommand1.ExecuteNonQuery();//关闭连接this.oleDbConnection1.Close();//更新数据集this.dataSet1.Tables["客户"].Rows[this.MyBind.Position].BeginEdit();this.dataSet1.Tables["客户"].Rows[this.MyBind.Position].EndEdit();this.dataSet1.AcceptChanges();MessageBox.Show("增加数据集记录操作成功！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);}catch(Exception Err){MessageBox.Show("增加数据集记录操作失败：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);//如果打开了连接，则关闭它if(this.oleDbConnection1.State==ConnectionState.Open){this.oleDbConnection1.Close();}}}private void button7_Click(object sender, System.EventArgs e){//修改记录if(this.textBox1.Text.Length<1){MessageBox.Show("客户ID必须填写！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);return;}try{string StrSQL="UPDATE 客户 SET";StrSQL =" 公司名称='" this.textBox2.Text;StrSQL ="', 联系人姓名='" this.textBox3.Text;StrSQL ="', 联系人头衔='" this.textBox4.Text;StrSQL ="', 地址='" this.textBox5.Text;StrSQL ="', 城市='" this.textBox6.Text;StrSQL ="', 地区='" this.textBox7.Text;StrSQL ="', 邮政编码='" this.textBox8.Text;StrSQL ="', 国家='" this.textBox9.Text;StrSQL ="', 电话='" this.textBox10.Text;StrSQL ="', 传真='" this.textBox11.Text "' WHERE 客户ID='" this.textBox1.Text "'";this.oleDbCommand1.CommandText=StrSQL;this.oleDbCommand1.Connection=this.oleDbConnection1;//打开数据库连接this.oleDbConnection1.Open();//执行SQL命令this.oleDbCommand1.ExecuteNonQuery();//关闭连接this.oleDbConnection1.Close();//更新数据集this.dataSet1.Tables["客户"].Rows[this.MyBind.Position].BeginEdit();this.dataSet1.Tables["客户"].Rows[this.MyBind.Position].EndEdit();this.dataSet1.AcceptChanges();this.oleDbDataAdapter1.Fill(this.dataSet1,"客户");MessageBox.Show("修改数据集记录操作成功！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);}catch(Exception Err){MessageBox.Show("修改数据集记录操作失败：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);//如果打开了连接，则关闭它if(this.oleDbConnection1.State==ConnectionState.Open){this.oleDbConnection1.Close();}}}private void button8_Click(object sender, System.EventArgs e){//删除记录try{string StrSQL="DELETE FROM 客户 WHERE ";StrSQL =" 客户ID='" this.textBox1.Text "'";this.oleDbCommand1.CommandText=StrSQL;this.oleDbCommand1.Connection=this.oleDbConnection1;//打开数据库连接this.oleDbConnection1.Open();//执行SQL命令this.oleDbCommand1.ExecuteNonQuery();//关闭连接this.oleDbConnection1.Close();//更新数据集this.dataSet1.Tables["客户"].Rows[this.MyBind.Position].BeginEdit();this.dataSet1.Tables["客户"].Rows[this.MyBind.Position].EndEdit();this.dataSet1.AcceptChanges();this.oleDbDataAdapter1.Fill(this.dataSet1,"客户");this.MyBind.Position=0;MessageBox.Show("删除数据集记录操作成功！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);}catch(Exception Err){MessageBox.Show("删除数据集记录操作失败：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);//如果打开了连接，则关闭它if(this.oleDbConnection1.State==ConnectionState.Open){this.oleDbConnection1.Close();}}}private void button9_Click(object sender, System.EventArgs e){//关闭程序//如果打开了连接，则关闭它if(this.oleDbConnection1.State==ConnectionState.Open){this.oleDbConnection1.Close();}this.Close();}}}