C# 连接Access数据库，并读取数据库内容实例源码

C#数据库操作

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开发语言：C#
实例大小：0.07M
下载次数：172
浏览次数：3800
发布时间：2013-02-08
实例类别：C#数据库操作
发布人：星火燎原
文件格式：.zip
所需积分：2

实例介绍

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【实例简介】读取数据库实例，需将test.mdb放到E:\Project\Database1\bin\debug 目录下，即可正确显示数据，或者修改数据库路径即可
【实例截图】

【核心代码】

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
 
namespace DataBase1
{
    /// <summary>
    /// 简单的数据库访问。
    /// </summary>
    public class Form1 : System.Windows.Forms.Form
    {
        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 System.Windows.Forms.DataGrid dataGrid1;
        private DataBase1.DataSet1 dataSet11;
        /// <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 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.oleDbDataAdapter1 = new System.Data.OleDb.OleDbDataAdapter();
            this.oleDbSelectCommand1 = new System.Data.OleDb.OleDbCommand();
            this.oleDbInsertCommand1 = new System.Data.OleDb.OleDbCommand();
            this.oleDbUpdateCommand1 = new System.Data.OleDb.OleDbCommand();
            this.oleDbDeleteCommand1 = new System.Data.OleDb.OleDbCommand();
            this.oleDbConnection1 = new System.Data.OleDb.OleDbConnection();
            this.dataGrid1 = new System.Windows.Forms.DataGrid();
            this.dataSet11 = new DataBase1.DataSet1();
            ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
            ((System.ComponentModel.ISupportInitialize)(this.dataSet11)).BeginInit();
            this.SuspendLayout();
            // 
            // 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", "user", new System.Data.Common.DataColumnMapping[] {
                                                                                                                                                                                                                new System.Data.Common.DataColumnMapping("username", "username"),
                                                                                                                                                                                                                new System.Data.Common.DataColumnMapping("address", "address"),
                                                                                                                                                                                                                new System.Data.Common.DataColumnMapping("Email", "Email")})});
            this.oleDbDataAdapter1.UpdateCommand = this.oleDbUpdateCommand1;
            // 
            // oleDbSelectCommand1
            // 
            this.oleDbSelectCommand1.CommandText = "SELECT username, address, Email, 编号 FROM [user] ORDER BY username";
            this.oleDbSelectCommand1.Connection = this.oleDbConnection1;
            // 
            // oleDbInsertCommand1
            // 
            this.oleDbInsertCommand1.CommandText = "INSERT INTO [user] (username, address, Email, 编号) VALUES (?, ?, ?, ?)";
            this.oleDbInsertCommand1.Connection = this.oleDbConnection1;
            this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("username", System.Data.OleDb.OleDbType.VarWChar, 20, "username"));
            this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("address", System.Data.OleDb.OleDbType.VarWChar, 50, "address"));
            this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Email", System.Data.OleDb.OleDbType.VarWChar, 50, "Email"));
            this.oleDbInsertCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("编号", System.Data.OleDb.OleDbType.Integer, 0, System.Data.ParameterDirection.Input, false, ((System.Byte)(10)), ((System.Byte)(0)), "编号", System.Data.DataRowVersion.Current, null));
            // 
            // oleDbUpdateCommand1
            // 
            this.oleDbUpdateCommand1.CommandText = "UPDATE [user] SET username = ?, address = ?, Email = ?, 编号 = ? WHERE (编号 = ?) AND" 
                " (Email = ? OR ? IS NULL AND Email IS NULL) AND (address = ? OR ? IS NULL AND ad" 
                "dress IS NULL) AND (username = ?)";
            this.oleDbUpdateCommand1.Connection = this.oleDbConnection1;
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("username", System.Data.OleDb.OleDbType.VarWChar, 20, "username"));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("address", System.Data.OleDb.OleDbType.VarWChar, 50, "address"));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Email", System.Data.OleDb.OleDbType.VarWChar, 50, "Email"));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("编号", System.Data.OleDb.OleDbType.Integer, 0, System.Data.ParameterDirection.Input, false, ((System.Byte)(10)), ((System.Byte)(0)), "编号", System.Data.DataRowVersion.Current, null));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_编号", System.Data.OleDb.OleDbType.Integer, 0, System.Data.ParameterDirection.Input, false, ((System.Byte)(10)), ((System.Byte)(0)), "编号", System.Data.DataRowVersion.Original, null));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null));
            this.oleDbUpdateCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_username", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "username", System.Data.DataRowVersion.Original, null));
            // 
            // oleDbDeleteCommand1
            // 
            this.oleDbDeleteCommand1.CommandText = "DELETE FROM [user] WHERE (编号 = ?) AND (Email = ? OR ? IS NULL AND Email IS NULL) " 
                "AND (address = ? OR ? IS NULL AND address IS NULL) AND (username = ?)";
            this.oleDbDeleteCommand1.Connection = this.oleDbConnection1;
            this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_编号", System.Data.OleDb.OleDbType.Integer, 0, System.Data.ParameterDirection.Input, false, ((System.Byte)(10)), ((System.Byte)(0)), "编号", System.Data.DataRowVersion.Original, null));
            this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null));
            this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_Email1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "Email", System.Data.DataRowVersion.Original, null));
            this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null));
            this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_address1", System.Data.OleDb.OleDbType.VarWChar, 50, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "address", System.Data.DataRowVersion.Original, null));
            this.oleDbDeleteCommand1.Parameters.Add(new System.Data.OleDb.OleDbParameter("Original_username", System.Data.OleDb.OleDbType.VarWChar, 20, System.Data.ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "username", System.Data.DataRowVersion.Original, null));
            // 
            // oleDbConnection1
            // 
            this.oleDbConnection1.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;Password="""";User ID=Admin;Data Source=E:\Project\DataBase1\bin\Debug\test.mdb;Mode=Share Deny None;Extended Properties="""";Jet OLEDB:System database="""";Jet OLEDB:Registry Path="""";Jet OLEDB:Database Password="""";Jet OLEDB:Engine Type=5;Jet OLEDB:Database Locking Mode=1;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password="""";Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don't Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Jet OLEDB:SFP=False";
            // 
            // dataGrid1
            // 
            this.dataGrid1.DataMember = "user";
            this.dataGrid1.DataSource = this.dataSet11;
            this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
            this.dataGrid1.Location = new System.Drawing.Point(8, 8);
            this.dataGrid1.Name = "dataGrid1";
            this.dataGrid1.Size = new System.Drawing.Size(376, 248);
            this.dataGrid1.TabIndex = 0;
            // 
            // dataSet11
            // 
            this.dataSet11.DataSetName = "DataSet1";
            this.dataSet11.Locale = new System.Globalization.CultureInfo("zh-CN");
            this.dataSet11.Namespace = "http://www.tempuri.org/DataSet1.xsd";
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(8, 18);
            this.ClientSize = new System.Drawing.Size(392, 264);
            this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                          this.dataGrid1});
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.MaximizeBox = false;
            this.Name = "Form1";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "Form1";
            this.Load  = new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
            ((System.ComponentModel.ISupportInitialize)(this.dataSet11)).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)
        {
            dataSet11.Clear();
            //oleDbDataAdapter1.SelectCommand = "Select username ";
            oleDbDataAdapter1.Fill(dataSet11);
        }
    }
}<span><span> </span></span>

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