/// <summary>
/// Bind the panel bar to the DataSource and cache the DataSource in the user's
/// session to improve performance.
/// </summary>
private void BindPanelBarToDataSource()
{
NavBarData navbar = new NavBarData();
int personID = CurrentPerson != null ? CurrentPerson.PersonID : -1;
DataTable table = null;
string navSessionkey = "CccevNavBar$" + RootPageIdSetting + "$";
string authKey = "CccevNavBarPersonID$";
// don't get the table from the session if RefreshCache was requested
if (Request.QueryString["refreshcache"] != null)
{
table = null;
}
else if (Session[navSessionkey] != null && Session[authKey] != null && (int)Session[authKey] == personID)
{
table = (DataTable)Session[navSessionkey];
}
// fetch a fresh table if the table has been set to null
if (table == null)
{
table = navbar.GetNavBar_DT(Convert.ToInt32(RootPageIdSetting), personID);
Session[navSessionkey] = table;
// store the authenticated personID for the next check in order to ensure the user's
// authentication has not changed since this DataSource was cached in their session.
Session[authKey] = personID;
}
RadPanelbar2.DataSource = table;
RadPanelbar2.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
InitPanelBar();
BindPanelBarToDataSource();
}
// Expand the selected page and its parent chain
pageID = Convert.ToInt32(Request.Params["page"]);
RadPanelItem selected = RadPanelbar2.FindItemByValue(pageID.ToString());
if (selected != null)
{
selected.Selected = true;
selected.Expanded = true;
selected.ChildGroupCssClass = "groupExpanded";
selected.ExpandParentItems();
}
}