Hello Benjamin Millspaugh,

The ID property is internally used to support the server-side control framework we have developed. It is no longer rendered to save output on the client-side. You can still make it render if you set it via the attributes collection of the tab (tab.Attributes["id"] = value).

You can also use the Value property for the sake of identifying tabs. It shouldn't be affected by the localization if you don't explicitly do so. For example you can delete the .Value entries from your resource file. We made the Value property localizable to follow the established convention (System.Web.UI.WebControls.MenuItem.Value is localizable as well).

I hope this helps,
Albert
the Telerik team

You can't say that the Value property isn't affected by localization since it is a localizable property and every time you generate resources for the page it will be created automatically.  Going in every time to remove it manually is not a solution, it is a hack for something that probably shouldn't have been localized in the first place.

I will look into the attributes but it sounds like they need to be set in the code behind, but of course there is no way to reference the tab on the server side in order to set the attribute because the ID property has been removed unless you build the entire tabstrip and tabs in the code behind and have no markup.

The removal of the ID property seems like a big sacrifice for saving a few characters on a page.  I am disappointed that you are not preserving the functionality of the old TabStrip or providing a solid alternate approach in the new product.

Hi Benjamin Millspaugh,

Localization of the Value property was made to follow the established convention - all our other controls (RadTreeView, RadMenu, RadTabStrip) and some of Microsoft's have their Value property localizable. The "classic" RadTabStrip supported the same feature as well.

By the way you can use custom attributes defined inline in your ASPX like this:
            <telerik:RadTabStrip runat="server" ID="RadTabStrip1" meta:resourcekey="RadTabStrip1Resource1">
                <Tabs>
                    <telerik:RadTab Text="Corporate" MyID="Tab1" meta:resourcekey="RadTabResource1" runat="server" Selected="True"></telerik:RadTab>
                    <telerik:RadTab Text="Products" MyID="Tab2" meta:resourcekey="RadTabResource2" runat="server"></telerik:RadTab>
                    <telerik:RadTab Text="Services" MyID="Tab3" meta:resourcekey="RadTabResource3" runat="server"></telerik:RadTab>
                </Tabs>
            </telerik:RadTabStrip>

You can use the findTabByAttribute(attributeName, attributeValue) JavaScript routine to find your tabs. I hope this is a feasible workaround for you.

Regards,
Albert
the Telerik team