private void DataGridviewBind() { MasterTourokuStaff obj = new MasterTourokuStaff(); obj.ChangeDate = changeDate_Access; obj.StaffCD = txtStaff1.Text; obj.Passward = txtStaff2.Text;//using tempory for assign data obj.StaffName = txtStaffName.Text; obj.KanaName = txtKanaName.Text; obj.Remarks = string.Empty; if (rdo_Date.Checked) { obj.Remarks = "RevisionDate"; } if (rdo_All.Checked) { obj.Remarks = "All"; } StaffBL objMethod = new StaffBL(); DataTable dt = objMethod.Staff_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"]); //dt.Columns.Remove("CurrentDay"); } else { ClearSession(); //HET } } else { if (dt.Rows.Count == 0) //HET { ClearSession(); } } // dt.Columns.Remove("CurrentDay"); gvStaff.DataSource = dt; }