1. Install MySQL

Download the MySQL installation package link: https://dev.mysql.com/downloads/ , as shown in the figure, clickMySQL Community Downloads

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Continue to select MySQL Community Server, as shown in the figure

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Select the version to be downloaded, select the first one for Download, as shown in the figure:

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Click No thanks on this page, just start my download

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After the download is complete, unzip it directly, write the MySQL configuration file, and create a new my.ini file, as shown in the figure:

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The content of the file is as follows:

[mysqld]
# 设置3306端口
port=3306
# 设置mysql的安装目录   ----------Mysql解压之后的文件路径-------------
basedir=D:\mysql-8.0.34-winx64
# 设置mysql数据库的数据的存放目录  ---------文件夹自行创建
datadir=D:\mysql-8.0.34-winx64\data
# 允许最大连接数
max_connections=200
# 允许连接失败的次数。
max_connect_errors=10
# 服务端使用的字符集默认为utf8
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
# 默认使用“mysql_native_password”插件认证
#mysql_native_password
default_authentication_plugin=mysql_native_password
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port=3306
default-character-set=utf8

Note that # 设置mysql数据库的数据的存放目录 ---------文件夹自行创建 datadir=D:\mysql-8.0.34-winx64\data
it is best to create a new data folder in the decompression directory, otherwise you may not be able to enter mysql later

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Open CMD as an administrator and enter the bin directory of mysql, as shown in the figure:

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Excuting an order

mysqld --initialize --console

As shown in the figure, the initial password is different for each person, and the position is marked with a yellow mark in the figure

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Install mysql service

mysqld --install mysql

then start

net start mysql

as the picture shows:

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input the command

mysql -uroot -p

Then enter the initial password:

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Change login password

ALTER USER 'root'@'localhost' IDENTIFIED BY '666666';

change the password to666666

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Exit mysql, enter

exit

To stop the mysql service, enter

net stop mysql

Configure environment variables, as shown in the figure:

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New in system variables

变量名：MYSQL_HOME
变量值：MySQL的解压目录

as the picture shows:

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Then find PATH in the system variable, add

%MYSQL_HOME%\bin

as the picture shows:

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2. DBeaver installation (not required)

DBeaver is a database connection tool, free, cross-platform

Download URL: https://dbeaver.io/download/

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After decompression or installation directly, as shown in the figure:

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Open the software, as shown in the figure:

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Select MySQL, as shown in the figure:

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Enter the password, just set666666

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Download the driver file automatically, as shown in the figure:

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start mysql

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The connection is successful, as shown in the figure:

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Can operate on the database:

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3. C# WPF connects to MySQL

Create a project, as shown in the figure:

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Create a WPF application:

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Create project:

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Design interface:

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Place controls:

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Automatically install the required dll package, as shown in the figure:

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After the installation is complete, the error message disappears:

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Connect to MySQL, as shown in the figure:

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Run the project:

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Click the button and the connection is successful:

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The test code is as follows:

using MySql.Data.MySqlClient;
using System;
using System.Diagnostics;
using System.Windows;
using System.Windows.Controls;

namespace FM_NVM_App
{
    
    
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
    
    
        public MainWindow()
        {
    
    
            InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
    
    

            Process p = Process.Start("E:\\software\\FM_FIG-Trans_V1.0\\dist\\FM_FIG-Trans_GUI\\FM_FIG-Trans_GUI.exe");
            p.WaitForExit();
        }
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
    
    

            String strConn = "Database = sys;Server = localhost;Port = 3306;Password = 666666;UserID = root;charset = utf8";
            MySqlConnection conn = new MySqlConnection(strConn);
            MySqlCommand comm = new MySqlCommand();
            comm.Connection = conn;
            try
            {
    
    
                conn.Open();
                txtbox.Text = strConn;
            }
            catch (Exception ex)
            {
    
    
                MessageBox.Show(ex.Message);
            }
        }

        private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
        {
    
    

        }
    }
}

I hope this article is helpful to everyone. If there is anything wrong with the above, please correct me.

Sharing determines the height, and learning widens the gap

Build a C# WPF project to connect to the MySQL database hand in hand

1. Install MySQL

2. DBeaver installation (not required)

3. C# WPF connects to MySQL

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