private async void Button1_Click(object sender, EventArgs e) { string myText = $"{textBox1.Text}{textBox2.Text}{textBox3.Text}{textBox4.Text}{textBox5.Text}"; bool status = await Task.Run(() => controller.MakeRequest(myText)); if (status) { Properties.Settings.Default["SERIAL"] = myText; Properties.Settings.Default.Save(); window.Show(); Hide(); } }