c#連接mysql數據庫的二種方法

c#連接mysql教程數據庫教程的二種方法

mysql提供的是一個dll文件——“mysql.data.dll”，目前我用的就是這個dll文件，將這個文件（見附件）放到網站的bin目錄下，就可以使用了。而且和sql server的用法並沒有太大的出入，只是應用的名稱不一樣而已。
代碼如下：

1.default.asp教程x：
<%@ page language="c#" autoeventwireup="true"  codefile="default.aspx.cs" inherits="_default" %>

    <form id="form1" runat="server">
    <div>
        <asp:table id="tbltest" runat="server">
            <asp:tableheaderrow id="tblrowheader" runat="server">
                <asp:tableheadercell id="tblcellheader" runat="server" text="新聞標題"></asp:tableheadercell>
            </asp:tableheaderrow>
        </asp:table>
    </div>
    </form>

2.default.aspx.cs：

using system.web;
using system.web.security;
using system.web.ui;
using system.web.ui.webcontrols;
using system.web.ui.webcontrols.webparts;
using system.web.ui.htmlcontrols;
using mysql.data.mysqlclient;

public partial class _default : system.web.ui.page
{
    protected void page_load(object sender, eventargs e)
    {
        string connstr = configurationmanager.connectionstrings["connectionstring"].tostring();
        mysqlconnection mysqlconn = new mysqlconnection(connstr);

        string sqlstr = "select name from t_document order by id desc";
        mysqlconn.open();
        mysqlcommand mysqlcmd = new mysqlcommand(sqlstr,mysqlconn);
        mysqldatareader mysqlrdr = mysqlcmd.executereader();
        while (mysqlrdr.read())
        {
            tablerow tr = new tablerow();
            tablecell tc = new tablecell();
            tc.text = mysqlrdr["name"].tostring();
            tr.cells.add(tc);
            tbltest.rows.add(tr);
        }
    }
}

方法二

在安裝文件夾下面找到mysqldriver.dll，然後將mysqldriver.dll添加引用到項目中

    注：我下載的是版本是 mysqldrivercs-n-easyquerytools-4.0.1-dotnet2.0.exe

 

    using system;

    using system.collections.generic;

    using system.componentmodel;

    using system.data;

    using system.data.odbc;

    using system.drawing;

    using system.linq;

    using system.text;

    using system.windows.forms;

    using mysqldrivercs;

    namespace mysql

    {

        public partial class form1 : form

        {

            public form1()

            {

                initializecomponent();

            }

 

            private void form1_load(object sender, eventargs e)

            {

 

            mysqlconnection conn = null;

            conn = new mysqlconnection(new mysqlconnectionstring("localhost", "inv", "root", "831025").asstring);

            conn.open();

 

            mysqlcommand commn = new mysqlcommand("set names gb2312", conn);

            commn.executenonquery();

 

            string sql = "select * from exchange ";

            mysqldataadapter mda = new mysqldataadapter(sql, conn);

 

            dataset ds = new dataset();

            mda.fill(ds, "table1");

 

            this.datagrid1.datasource = ds.tables["table1"];

            conn.close();

            }

        }

    }

相關組件可以到http://dev.mysql.com/downloads/connector/net/5.0.html下載