如何将 MySQL 数据库连接到 C# WinForm 应用程序？

Question

How do you connect a MySQL database to a C# WinForm Application?

I can establish a connection using a Microsoft SQL Server, but cannot for the life of me figured out how it's done using MySQL.

Answer 1

You'll need MySQL Connector / Net . Install this, then you'll get a suite of classes like MySqlConnection, MySQLCommand, MySQLDataReader, etc.

These are analogous to SqlConnection and similar classes for MS Sql Server.

https://dev.mysql.com/downloads/connector/net/6.9.html

Answer 2

Use this code:

string myConnectionString = "server=localhost;database=testDB;uid=root;pwd=abc123;";
private void button1_Click(object sender, EventArgs e)
{
    MySqlConnection cnn = new MySqlConnection(myConnectionString);
    try
    {
        cnn.Open();
        MessageBox.Show ("Connection Open!");
        cnn.Close();
    }
    catch (Exception ex)
    {
        MessageBox.Show("Cannot open connection!");
    }
}

Make sure that you have a proper reference in your code:

using MySql.Data.MySqlClient;

And this connection string is just an example. You have to see what is your connection string ofc. And also search for these kind of questions because I'm sure that there is a bunch of similar or even the same questions on StackOverflow.