Hi Corey,
Thank you for contacting us.
The data-bind attribute is part of the Kendo UI MVVM implementation. It's applicable for Kendo UI Views that have the data-model attribute. The Kendo UI Tabstrip widget is a navigation widget and shouldn't be a part of the view. It should be in the Layout as in your case. This also means you can't use the data-bind attribute and benefit from the two way binding mechanism. You have to use the Tabstrip widget's
badge() method. You can also see a demo example
here. You can see the source code by clicking on the "<>" button in the top right corner.
Let me know if you have any questions.
Regards,
Martin Yankov
Telerik
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