How to make, many computer can accsess to phpmyadmin database. C#, .NET and mysql

using System;
using System.Net;
using System.Windows.Forms;
using MySql.Data.MySqlClient;
using SchoolJournal.Main;

namespace SchoolJournal.Main
{
	class DBConnect
	{
		MySqlConnection connection = new MySqlConnection("datasource='localhost';port=3306;username=root;password=;database=schooljournal");

		//Getting connection
		public MySqlConnection getConnection()
		{
			return connection;
		}

		//Create a function to open connection
		public void openConnect()
		{
			if (connection.State == System.Data.ConnectionState.Closed)
			{
				connection.Open();
			}
		}

		//Create a function to close connection
		public void closeConnect()
		{
			if (connection.State == System.Data.ConnectionState.Open)
			{
				connection.Close();
			}
		}