private void GetStaffByTeam(string cocTeam) { cmbTransferee.DataSource = StaffBiz.GetStaffByTeam(cocTeam); cmbTransferee.DataTextField = "TextField"; cmbTransferee.DataValueField = "ValueField"; cmbTransferee.DataBind(); cmbTransferee.Items.Remove(cmbTransferee.Items.FindByValue(txtEmpCode.Text.Trim())); cmbTransferee.Items.Insert(0, new ListItem("", "")); btnTransferJob.Enabled = cmbTransferee.Items.Count > 0 ? true : false; }