private void precipitation_btn_Click(object sender, EventArgs e) { if (precipitationForm == null) { precipitationForm = new PrecipitationForm(); precipitationForm.FormClosed += PrecipitationForm_FormClosed; } this.Cursor = Cursors.WaitCursor; precipitationForm.Show(); this.Hide(); }
private void PrecipitationForm_FormClosed(object sender, FormClosedEventArgs e) { precipitationForm.FormClosed -= PrecipitationForm_FormClosed; precipitationForm = null; }