private void DataGridviewBind()
        {
            HacchuuNyuuryokuEntity obj = new HacchuuNyuuryokuEntity();

            if (cf.DateCheck(txtDate1))           //Task no. 147 - tza
            {
                obj.Date1 = txtDate1.Text;
            }
            if (cf.DateCheck(txtDate2))           //Task no. 147 - tza
            {
                obj.Date2 = txtDate2.Text;
            }

            obj.SiiresakiCD = txtSiiresaki.Text;
            obj.StaffCD     = txtStaffCD.Text;
            obj.ShouhinName = txtShouhinName.Text;

            obj.NO11 = txtNo11.Text;
            obj.NO12 = txtNo12.Text;
            obj.NO21 = txtNo21.Text;
            obj.NO22 = txtNo22.Text;

            obj.ShouhinCD1 = txtShouhin1.Text;
            obj.ShouhinCD2 = txtShouhin2.Text;
            HacchuuNyuuryokuBL objMethod = new HacchuuNyuuryokuBL();

            if (ErrorCheck(panel1))           //Task no. 147 - tza
            {
                DataTable dt = objMethod.HacchuuNyuuryoku_Search(obj);
                if (dt.Columns.Contains("CurrentDay"))
                {
                    if (dt.Rows.Count > 0)
                    {
                        lbl_Date.Text       = String.Format("{0:yyyy/MM/dd}", dt.Rows[0]["CurrentDay"]);
                        txtCurrentDate.Text = String.Format("{0:yyyy/MM/dd}", dt.Rows[0]["CurrentDay"]);
                    }
                    else
                    {
                        ClearSession();
                    }
                }
                gv_1.DataSource = dt;
                //gv_1.Select();//ssa
            }
        }