private void pressure_btn_Click(object sender, EventArgs e) { if (pressureForm == null) { pressureForm = new PressureForm(); pressureForm.FormClosed += PressureForm_FormClosed; } this.Cursor = Cursors.WaitCursor; pressureForm.Show(); this.Hide(); }
private void PressureForm_FormClosed(object sender, FormClosedEventArgs e) { pressureForm.FormClosed -= PressureForm_FormClosed; pressureForm = null; }