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The MVVM feature of the Kendo UI framework provides powerful two-way data binding capabilities, built on the popular Model-View-ViewModel concept. In this way you can easily make attribute values for widgets observable and modify them automatically when changes are applied in the data source, or alter the underlying data when the user interacts with the UI.
In this example we show how to configure the Kendo UI treemap to make use of the MVVM functionality exposed by the framework. For this purpose we create a viewmodel instance (with kendo.observable call) which wraps the treemap data source, and instantiate the widget, its attributes and binding definition using data- attributes. The important detail to wire the viewmodel is to invoke kendo.bind to the container element of the treemap, passing the viewmodel as a second argument. Review the code snippets from the demo for more info.
Details on the MVVM features of the Kendo UI framework can be obtained from this chapter of the documentation.