private void button1_Click(object sender, EventArgs e) { //check server // Thread checkServer = new Thread(check_server_connection); if (this.login_text_box.Text.Equals(this.login) && this.password_text_box.Text.Equals(this.password)) { // invoke main test form //RADIUS LOGIN this.Hide(); // send request to a server ask for test parameters! main_test_form MainTest = new main_test_form(this.technician_full_name.Text, this.service_request_num.Text); MainTest.Closed += (s, args) => this.Close(); MainTest.Show(); } else { DialogResult dialogResult = MessageBox.Show("Имя или паполь введены неверно!", "Отказ", MessageBoxButtons.OK); } }