public static bool ShowForm(MainInvestigation obj)
        {
            bool r = false;

            if (!Objectbase.IsNullOrEmpty(obj))
            {
                using (MainInvestigationForm frm = new MainInvestigationForm(obj))
                {
                    r = frm.ShowDialog() == DialogResult.OK;
                }
            }
            return(r);
        }