private sgFrmCheck getCheck() { if (sgFrmCheck == null || sgFrmCheck.IsDisposed) { sgFrmCheck = new sgFrmCheck(); sgFrmCheck.MdiParent = this; } else { sgFrmCheck.Activate(); } return(sgFrmCheck); }
private void b_Check_Click(object sender, EventArgs e) { sgFrmCheck sgFrmCheck = getCheck(); sgFrmCheck.Show(); }