//ddlDept.OnSelectedIndexChanged and txtBookingDate_TextChanged,ddlbilltype.OnSelectedIndexChanged
protected void txtBookingDate_TextChanged(object sender, EventArgs e)
{
BindInfoByDep(ddlDept.SelectedItem.Text);
HideFieldsWhenRefund();
if (hidID.Value == "0") //新增
{
txtInnerReferenceID.Text = svr.GetNextInnerReferenceID(
ddlDept.SelectedItem.Text, txtBookingDate.Text, ddlBillType.SelectedValue);
}
}