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net操作access数据库示例分享

2017年12月12日  | 移动技术网IT编程  | 我要评论

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复制代码 代码如下:

using system;
using system.data;
using system.configuration;
using system.linq;
using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.htmlcontrols;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.xml.linq;
using system.data.oledb;

/// <summary>
///accessdb 的摘要说明
/// </summary>
public class accessdb
{
    public accessdb()
    {
        //todo: 在此处添加构造函数逻辑
    }

    /// <summary>
    /// 读取access数据库
    /// </summary>
    private void readaccessdata()
    {
        //1、建立连接
        string saccessconnection = @"provider=microsoft.jet.oledb.4.0;data source=c:\documents and settings\administrator.www-410adc78208\桌面\应用程序.mdb";
        oledbconnection odcconnection = new oledbconnection(saccessconnection);
        //2、打开连接
        odcconnection.open();
        //建立sql查询
        oledbcommand odcommand = odcconnection.createcommand();
        //3、输入查询语句
        odcommand.commandtext = "select table.编号, table.[123], table.[456] from [table];";
        //建立读取
        oledbdatareader odrreader = odcommand.executereader();
        //查询并显示数据
        while (odrreader.read())
        {
            listviewitem item = new listviewitem();
            item.subitems.add(odrreader[0].tostring());
            item.subitems.add(odrreader[1].tostring());
            item.subitems.add(odrreader[2].tostring());
            this.listview1.items.add(item);
        }
        //关闭连接
        odrreader.close();
        odcconnection.close();
    }
    /// <summary>
    /// add
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void button1_click(object sender, eventargs e)
    {
        //1、建立连接
        string saccessconnection = @"provider=microsoft.jet.oledb.4.0;data source=c:\documents and settings\administrator.www-410adc78208\桌面\应用程序.mdb";
        oledbconnection odcconnection = new oledbconnection(saccessconnection);
        //2、打开连接
        odcconnection.open();
        //建立sql查询
        oledbcommand odcommand = odcconnection.createcommand();
        //3、输入查询语句
        odcommand.commandtext = "insert into [table]([123],[456]) values('88','88' )";
        //执行
        odcommand.executenonquery();
        //关闭连接
        odcconnection.close();
        this.listview1.items.clear();
        readaccessdata();
    }

    /// <summary>
    /// delete
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void button3_click(object sender, eventargs e)
    {
        //1、建立连接
        string saccessconnection = @"provider=microsoft.jet.oledb.4.0;data source=c:\documents and settings\administrator.www-410adc78208\桌面\应用程序.mdb";
        oledbconnection odcconnection = new oledbconnection(saccessconnection);
        //2、打开连接
        odcconnection.open();
        //建立sql查询
        oledbcommand odcommand = odcconnection.createcommand();
        //3、输入查询语句
        string sql = "delete table.编号 from [table] where (((table.编号)=" + this.listview1.selecteditems[0].subitems[1].text + "))";
        odcommand.commandtext = sql;
        //执行
        odcommand.executenonquery();
        //关闭连接
        odcconnection.close();
        this.listview1.items.clear();
        readaccessdata();
    }

    /// <summary>
    /// update
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void button2_click(object sender, eventargs e)
    {
        //1、建立连接
        string saccessconnection = @"provider=microsoft.jet.oledb.4.0;data source=c:\documents and settings\administrator.www-410adc78208\桌面\应用程序.mdb";
        oledbconnection odcconnection = new oledbconnection(saccessconnection);
        //2、打开连接
        odcconnection.open();
        //建立sql查询
        oledbcommand odcommand = odcconnection.createcommand();
        //3、输入查询语句
        string sql = "update [table] set 123='11',456='11'  where (((table.编号)=" + this.listview1.selecteditems[0].subitems[1].text + "))";
        odcommand.commandtext = sql;
        //执行
        odcommand.executenonquery();
        //关闭连接
        odcconnection.close();
        this.listview1.items.clear();
        readaccessdata();
    }
}

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