Save RibbonBar in Session

[Thomas]

Is it possible to save the entire RibbonBar in a Session variable and use it on page load?
I tried the following but on PostBack it fails.

if (!Page.IsPostBack)
{
 TCMenu _rb = new TCMenu();
 _rb.InitRibbonBar(ref trans_RibbonBarMenu); //dynamically adding tabs, groups and buttons - see code below
 Session["Test"] = trans_RibbonBarMenu;
}
else
{
 trans_RibbonBarMenu = (Session["Test"] as RadRibbonBar);
}

public void InitRibbonBar(ref RadRibbonBar ribbonBar, string formName, int userLevel)

{

    CriteriaOperator filter;

    filter = CriteriaOperator.Parse(String.Format("FormName = '{0}'", formName));



    XPCollection _xpoObjects = new XPCollection(DbUtils.GetDefaultSession, typeof(XPOMenuSettings), filter, null);



    SortProperty TabSortOrder = new SortProperty("TabSortOrder", DevExpress.Xpo.DB.SortingDirection.Ascending);

    _xpoObjects.Sorting.Add(TabSortOrder);



    SortProperty GroupSortOrder = new SortProperty("GroupSortOrder", DevExpress.Xpo.DB.SortingDirection.Ascending);

    _xpoObjects.Sorting.Add(GroupSortOrder);



    SortProperty sortOrder = new SortProperty("SortOrder", DevExpress.Xpo.DB.SortingDirection.Ascending);

    _xpoObjects.Sorting.Add(sortOrder);



    RibbonBarTab rbt;

    RibbonBarGroup rbg;



    foreach (XPOMenuSettings _xpoButton in _xpoObjects)

    {

        bool rbt_found = true;

        bool rbg_found = true;



        rbt = ribbonBar.FindTabByValue(_xpoButton.TabValue);

        if (rbt == null)

        {

            rbt = new RibbonBarTab();

            rbt.ID = _xpoButton.TabId;

            rbt.Text = _xpoButton.TabText;

            rbt.Value = _xpoButton.TabValue;

            rbt_found = false;

        }



        rbg = ribbonBar.FindGroupByValue(_xpoButton.GroupValue);

        if (rbg == null)

        {

            rbg = new RibbonBarGroup();

            rbg.ID = _xpoButton.GroupId;

            rbg.Text = _xpoButton.GroupText;

            rbg.Value = _xpoButton.GroupValue;

            rbg_found = false;

        }



        RibbonBarButton rbb = new RibbonBarButton();

        rbb.Size = (RibbonBarItemSize)_xpoButton.Size;

        rbb.Text = _xpoButton.Text;

        rbb.Value = _xpoButton.Value;

        rbb.ID = _xpoButton.Id;

        rbb.ImageUrl = _xpoButton.ImageUrl;

        rbb.ImageUrlLarge = _xpoButton.ImageUrlLarge;

        rbb.Visible = _xpoButton.Visible && (_xpoButton.UserLevel >= userLevel);



        rbb.Width = 80;



        rbg.Items.Add(rbb);

        if (!rbg_found)

            rbt.Groups.Add(rbg);

        if (!rbt_found)

            ribbonBar.Tabs.Add(rbt);

    }

}

Clientside works fine, but as soon as I click a button that calls serverside, I get the following error message:

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

[ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index]
   System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource) +64
   System.ThrowHelper.ThrowArgumentOutOfRangeException() +15
   System.Collections.Generic.List`1.get_Item(Int32 index) +7500084
   Telerik.Web.UI.RadRibbonBar.RaisePostBackEvent(String eventArgument) +272
   Telerik.Web.UI.RadRibbonBar.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +39
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +175
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565

[Bozhidar]

Hi Thomas,

You have to move the logic that creates the RibbonBar in the Page_Init event.
 
Kind regards,
Bozhidar
the Telerik team