c# 连接mysql数据库

最新推荐文章于 2025-07-09 09:54:27 发布

转载最新推荐文章于 2025-07-09 09:54:27 发布 · 470 阅读

本文介绍了一个使用C#从MySQL数据库中读取数据并显示在DataGridView中的示例程序。该程序通过MySqlDataAdapter执行SQL查询并将结果填充到DataSet中，最后将数据显示在窗体上。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
//using MySQLDriverCS;
using System.Data.SqlClient;
using MySql.Data.MySqlClient;

namespace importTxtToMysql
{
public partial class Form2 : Form
{
private DataSet dsall;
//private static String mysqlcon = "Data Source=MySQL;database=onepc;Password=;User ID=root;Location=192.168.1.168;charset=utf8";
private static String mysqlcon = "database=onepc;Password=;User ID=root;server=192.168.1.168";//Data Source=MySQL;;charset=utf8";
private MySqlConnection conn;
private MySqlDataAdapter mdap;
public Form2()
{
InitializeComponent();
}

private void button1_Click(object sender, EventArgs e)
{

try
{
// MySqlCommand cmd = new MySqlCommand("select ");
mdap = new MySqlDataAdapter("select * from allhard",conn);
dsall = new DataSet();
mdap.Fill(dsall,"hard");
dataGridView1.DataSource = dsall.Tables["hard"];

}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{

}

}

private void Form2_Load(object sender, EventArgs e)
{
conn = new MySqlConnection(mysqlcon);
}
}
}