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RadPanelBar v3.x "classic"
RadPanelBar for ASP.NET AJAX
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HOW-TO Make RadPanelBar occupy 100% of browser window's height.
By design, in its Height property RadPanelBar accepts a pixel value only . This makes it hard to extend the panelbar to occupy 100% of the height of the browser, especially if you have set the FullExpandedPanels and SingleExpandedPanel properties to true.
However it is possible to make the panelbar occupy the 100% of the visible height of the browser window. Here are the steps to accomplish that:
This will guarantee that even after you resize the browser the panelbar will occupy the full visible height of the window.