private void ConnectLastUser()
        {
            if (isCreateAdmin)
            {
                return;
            }
            var LastUser = Firebird.ReturnLastUser();

            txtUser.Text     = LastUser.UserName;
            txtPassword.Text = LastUser.Password;
            btLogin_Click(null, null);
        }
        private void CheckUser()
        {
            var admin = Firebird.ReturnAdmin();

            if (admin.UserName == null)
            {
                MessageBox.Show("É necessário criar uma conta para o administrador", "Aviso!", MessageBoxButtons.OK);
                ListaUsuarios form = new ListaUsuarios(true);
                form.ShowDialog();
                CheckUser();
                return;
            }

            CurrentUser = Firebird.ReturnLastUser();
            lbUser.Text = CurrentUser.UserName;
            if (CurrentUser.IsAdmin == 1)
            {
                lbUser.Text     += " (admin)";
                btnReset.Enabled = true;
            }
        }