Object Expected Error when delcaring RadTab Client-side

[Tom M]

Greetings,

I am getting "Error: Object expected" when creating a new RadTab. Any ideas what could be causing this? It makes no sense to me, and it only happens when the script resides in a RadWindow.

function openingNewWindow(oWnd, title) {
    if (oWnd) {
        tabStrip.trackChanges();
        //create a new tab
        var tab = new Telerik.Web.UI.RadTab();
        //set the text of the tab
        tab.set_text(title);
        oWnd.correspondingTab = tab;
        //add the tab to the tabstrip
        tabStrip.get_tabs().add(tab);
        tabStrip.repaint();
        tab.correspondingWnd = oWnd;
        tab.set_imageUrl("../CSS/titlegraphic.gif");
        tabStrip.commitChanges();
        //Select this tab
        tab.select();
    }
}

Regards,
Tom

[Yana]

Hello Tom,

The provided script seems correct. Can you send us more details? Where the tabStrip variable is set?

Regards,
Yana
the Telerik team

[Tom M]

Hi Yana,

Thanks for your reply. I was setting the tabstrip variable like this on pageLoad..

function pageLoad() {
    //get a reference to the needed controls -
    var manager = GetRadWindow().get_windowManager();
    var tabStrip = $find("<%=RadTabStrip1.ClientID %>");
}

I think my problem was that I declared the openingNewWindow() function "twice". Once within my "main" page, and once in a page contained within a radWindow. Maybe this could mess things up? I was trying to use it like this because in my application you can open radwindows from within radwindows, and in both cases I need to add a reference to the MDI radTabStrip. I never resolved the issue but did wise-up and use the following approach successfully within the radwindowed page...

//when opening a radWindow from the "main" page..
function openingNewWindow(oWnd, title) {
    if (oWnd) {
        tabStrip.trackChanges();
        //create a new tab
        var tab = new Telerik.Web.UI.RadTab();
        //set the text of the tab
        tab.set_text(title);
        oWnd.correspondingTab = tab;
        oWnd.correspondingTabStrip = tabStrip;
        //add the tab to the tabstrip
        tabStrip.get_tabs().add(tab);
        tabStrip.repaint();
        tab.correspondingWnd = oWnd;
        tab.set_imageUrl("../CSS/titlegraphic.gif");
        tabStrip.commitChanges();
        //Select this tab
        tab.select();
    }
}

Then within the radwindowed page I just assign the tabStrip as such...

function pageLoad() {
    //get a reference to the needed controls -
    manager = GetRadWindow().get_windowManager();
    tabStrip = GetRadWindow().correspondingTabStrip;
}

...and when I need to call the "parent" page's openingNewWindow() function ( to add a tab item for the window to the tabstrip ) ....

var oBrowserWnd = GetRadWindow().BrowserWindow;
oWnd.moveTo(20, 30);
oWnd.setSize(885, 475);
oWnd.setActive();
oBrowserWnd.openingNewWindow(oWnd, "Title");

Regards,
Tom

[Yana]

Hi Tom,

Could you please open a support ticket and send us a runnable pages demonstrating this issue as I'm not able to understand the exact approach. Thanks in advance

All the best,
Yana
the Telerik team