protected void Page_Load(object sender, EventArgs e)
{
if (Session["UserID"] == null)
Response.Redirect("~/Login.aspx");
else
{
InvoiceItem ii = new InvoiceItem();
OrderItemsGrid.DataSource = ii.GetAllInvoiceItemsByOrderID(Convert.ToInt32(Request.QueryString["orderid"]));
DataBind();
if (!Page.IsPostBack)
{
}
}
}
