C# 连接MySql的方法

1.从http://prdownloads.sourceforge.net/mysqldrivercs/MySQLDriverCS-n-EasyQueryTools-3.0.18.exe?download上下载MySQLDriverCS.
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2.把MySQLDriverCS.dll.添加到.net的组件 SAF)Rns"%

3.使用方法 )>+ s rt 
下面是创建一个数据库链接:

下面是创建一个数据库链接:

using MySQLDriverCS;

MySQLConnection conn =  new MySQLConnection( new MySQLConnectionString("localhost","test","root","").AsString );

conn.Open();

如果你使用的是.net的集成开发环境(visual studio.net)那么在代码中输入MySQLDriverCS后再输入一个”.”就可以看到MySQLDriverCS名称空间中的所有的东西了.

下面是commond:

MySQLCommand cmd; ](0- 3~@

   cmd = new MySQLDriverCS.MySQLCommand("DROP TABLE IF EXISTS test.mysqldrivercs_test",conn); ~m7 yZjj

   cmd.ExecuteNonQuery(); g#rTR\f

   cmd.Dispose();

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   cmd = new MySQLDriverCS.MySQLCommand("CREATE TABLE test.mysqldrivercs_test("+ MB2paRvKN

    "SettingID tinyint(3) unsigned NOT NULL auto_increment,"+ n #7o=c9+

    "SettingValue text, "+ N-bZs[*

    "PRIMARY KEY  (SettingID), UNIQUE KEY SettingID(SettingID),  KEY SettingID_2 (SettingID))"+ V?33xH

    " TYPE=MyISAM COMMENT='MySQL test table'",conn); g zJr ?

   >!pr6BKB6

   cmd.ExecuteNonQuery(); SC vCm\

   cmd.Dispose();

下面是insert:   {O) ti%V$ 

方法原型： :sGA6V

public MySQLInsertCommand( K$~.W<p9Ek

  
MySQLConnection conn, \1QtRI6i!B

   object[,] FieldsAndValues, RWdlqqba

   string Table xYQS9"}?

);

string Value = "Value"; RVN5^>r9a\

   int SettingID = 1;

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   new MySQLInsertCommand(conn, BaTKMN9'

    new object[,] {{"field1",SettingID},{"field2",Value}}, r9B ^f6vA#

    "mysqldrivercs_test" kCT|YJY

    );

mysqldrivercs_test 是表名 S9 8,*  :/f|OJi

下面是update

方法原型： BFKN+|8b5"

public MySQLUpdateCommand( &r=["j h

  
MySQLConnection conn, gwKR>zJ .#

   object[,] FieldsAndValues, vqoEZ2

   string Table, @.?$*`

   object[,] WhereParamFields, V,k2tL4

   string[,] WhereNoparamFields '%J,C4Um4

); +P){b<Zc" IWazX A
   Value = "Value2"; HoNCK6i

   new MySQLUpdateCommand(conn, dr,xR;Jl0

    new object[,] {{"SettingValue",Value}}, 'k~Tp9&V

    "mysqldrivercs_test",  u^=?~l

    new object[,] {{"SettingID","=",SettingID}}, ]6b0+) &

    null E8 tO::e

    );

下面是select

   DataTable dt = new MySQLSelectCommand(conn, ?t@q8Qx{oY

    new string[] {"SettingID","SettingValue"}, K2A)~mI

    new string[] {"mysqldrivercs_test"}, Y!yb V

    new object[,] {{"SettingID","=",SettingID}}, wcK^AI:#R

    null, ~.jYHHX

    null O1"F?]R

    ).Table; bD 3^

   string storedValue = dt.Rows[0]["SettingValue"].ToString(); UpU5Ex^27

 

   下面是delete D{3 % ~=

   new MySQLDeleteCommand(conn,"mysqldrivercs_test",new object[,] {{"SettingID","=",SettingID}},null);

关闭链接:

    conn.Close();