public Register(Database db, User user) {
InitializeComponent();
_db = db;
add_btn.Text = "上書き";
IsUpdate = true;
SetForm(user);
}
private void InitialDB() {
_db = new Database();
if (!_db.IsExist()) {
_db.Make();
}
}
public Register(Database db) {
InitializeComponent();
_db = db;
InitialCombobox();
}