private void OnAddNewMainInvestigationClick(object sender, EventArgs e)
        {
            MainInvestigation obj = new MainInvestigation(this.mOPDInvestigationProcedure);

            MainInvestigationForm.ShowForm(obj);
            MainInvestigationCollection opdMainInvestigationList = new MainInvestigationCollection();

            this.cmbMainInvestigation.DataSource    = opdMainInvestigationList;
            this.cmbMainInvestigation.DisplayMember = "DisplayName";
        }
        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);
        }