private void FacilityMaintenanceButton_Click(object sender, EventArgs e) { if (facilityMaintain == null) { facilityMaintain = new SportsFacilitiesMaintenanceForm(); facilityMaintain.MdiParent = this; facilityMaintain.Dock = DockStyle.Fill; facilityMaintain.Show(); facilityMaintain.FormClosed += FacilityMaintain_FormClosed; } else { facilityMaintain.Activate(); } }
private void FacilityMaintain_FormClosed(object sender, FormClosedEventArgs e) { facilityMaintain = null; }