很多用C#的对于MySQL数据库的连接相信都比较头痛，那么c#如何连接MySQL呢？接下来请跟着小编走
.首先从网上下载mysql.data.dll
.打开现有的项目工程或者新建一个C#的项目，找到引用，点击右键选择添加引用如图
接下来就可以进行码了
（）码什么都得告诉程序加入的文件名才能调用
using MySql.Data.MySqlClient;//调用MySQL动态库
（）建立连接：
MySqlConnectionsqlCon= new MySqlConnection("Database=数据库名字;Data Source=服务器的ip地址;User Id=用户名;Password=用户密码");
或者：
MySqlConnectionsqlCon= new MySqlConnection("server=服务器的ip地址;user id=用户名;password=用户密码;database=数据库名字");
或者：
string M_str_sqlcon = "server=服务器ip地址;User Id=用户名;password=用户密码;Database=数据库名字";//根据自己的设置
MySqlConnection sqlCon = new MySqlConnection(M_str_sqlcon);
注释：server=服务器ip地址;User Id=用户名;password=用户密码;Database=数据库名字，这几个的顺序可以调换，只要对准每个字符串和标识符就好了。
（）执行sql命令：
//设置查询命令
MySqlCommand mycmd= new MySqlCommand("select * fromt_dept whereTITLElike &#;%p%&#;", sqlCon);
完整代码：
using System;using System.Configuration;using MySql.Data.MySqlClient;/// <summary>/// TestDatebase 的摘要说明/// </summary>public class TestDatebase{ public TestDatebase() { // // TODO: 在此处添加构造函数逻辑 // } public static void Main(String[] args) { MySqlConnection mysql = getMySqlCon(); //查询sql String sqlSearch = "select * from student"; //插入sql String sqlInsert = "insert into student values (,&#;张三&#;,,&#;大专&#;)"; //修改sql String sqlUpdate = "update student set name=&#;李四&#; where id= "; //删除sql String sqlDel = "delete from student where id = "; //打印SQL语句 Console.WriteLine(sqlDel); //四种语句对象 //MySqlCommand mySqlCommand = getSqlCommand(sqlSearch, mysql); //MySqlCommand mySqlCommand = getSqlCommand(sqlInsert, mysql); //MySqlCommand mySqlCommand = getSqlCommand(sqlUpdate, mysql); MySqlCommand mySqlCommand = getSqlCommand(sqlDel, mysql); mysql.Open(); //getResultset(mySqlCommand); //getInsert(mySqlCommand); //getUpdate(mySqlCommand); getDel(mySqlCommand); //记得关闭 mysql.Close(); String readLine = Console.ReadLine(); } /// <summary> /// 建立mysql数据库链接 /// </summary> /// <returns></returns> public static MySqlConnection getMySqlCon() { String mysqlStr = "Database=test;Data Source=...;User Id=root;Password=root;pooling=false;CharSet=utf;port="; // String mySqlCon = ConfigurationManager.ConnectionStrings["MySqlCon"].ConnectionString; MySqlConnection mysql = new MySqlConnection(mysqlStr); return mysql; } /// <summary> /// 建立执行命令语句对象 /// </summary> /// <param name="sql"></param> /// <param name="mysql"></param> /// <returns></returns> public static MySqlCommand getSqlCommand(String sql,MySqlConnection mysql) { MySqlCommand mySqlCommand = new MySqlCommand(sql, mysql); // MySqlCommand mySqlCommand = new MySqlCommand(sql); // mySqlCommand.Connection = mysql; return mySqlCommand; } /// <summary> /// 查询并获得结果集并遍历 /// </summary> /// <param name="mySqlCommand"></param> public static void getResultset(MySqlCommand mySqlCommand) { MySqlDataReader reader = mySqlCommand.ExecuteReader(); try { while (reader.Read()) { if (reader.HasRows) { Console.WriteLine("编号:" + reader.GetInt() + "|姓名:" + reader.GetString() + "|年龄:" + reader.GetInt() + "|学历:" + reader.GetString()); } } } catch (Exception) { Console.WriteLine("查询失败了！"); } finally { reader.Close(); } } /// <summary> /// 添加数据 /// </summary> /// <param name="mySqlCommand"></param> public static void getInsert(MySqlCommand mySqlCommand) { try { mySqlCommand.ExecuteNonQuery(); } catch (Exception ex) { String message = ex.Message; Console.WriteLine("插入数据失败了！" + message); } } /// <summary> /// 修改数据 /// </summary> /// <param name="mySqlCommand"></param> public static void getUpdate(MySqlCommand mySqlCommand) { try { mySqlCommand.ExecuteNonQuery(); } catch (Exception ex) { String message = ex.Message; Console.WriteLine("修改数据失败了！" + message); } } /// <summary> /// 删除数据 /// </summary> /// <param name="mySqlCommand"></param> public static void getDel(MySqlCommand mySqlCommand) { try { mySqlCommand.ExecuteNonQuery(); } catch (Exception ex) { String message = ex.Message; Console.WriteLine("删除数据失败了！" + message); } }}