The so called full-expanded-item mode of the PanelBar, is currently not supported. This is the mode that makes the widget have the same height no matter which item is expanded.
- If a template is used, you can set height to its wrapper. For example, this is the <div> with the 10px padding inside the first root item: http://demos.kendoui.com/web/panelbar/index.html
- if normal nested item groups are used, you can set height to the inner <ul> elements.
If you need further assistance, please submit a support ticket. Make sure to include some code snippets or a demo, so that we can better understand what your scenario is.
All the best,
the Telerik team
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