how to check if database exists in MySQL server?

Hello everyone,

I am using WPF apps with MySQL database. I did create backup.sql file. Then, after create .exe file, how can I check if db exist then skip below code?

private void Application_Startup(object sender, StartupEventArgs e)
{
RestoreBehavior();
}

private void RestoreBehavior()
{
string constring = "server=localhost;user=root;pwd=123456;";
string file = @"C:\Program Files (x86)\xxxx\xxxx\backup.sql";
using (MySqlConnection conn = new MySqlConnection(constring))
{
using (MySqlCommand cmd = new MySqlCommand())
{
using (MySqlBackup mb = new MySqlBackup(cmd))
{
cmd.Connection = conn;
conn.Open();
mb.ImportInfo.TargetDatabase = "mydb";/*Here,How can I check here if mydb exist then skip the code?*/
mb.ImportInfo.DatabaseDefaultCharSet = "utf8";
mb.ImportFromFile(file);
}
}
}
}