I am not sure I completely understand the functionality you would like to achieve. Are you trying to open a specific item in RadLightBox on page load based on a query string? Or you would like to have the url in the address bar changed for every photo in the RadLightBox?
If you would like to have the former functionality you could use an approach similar to the one described in this article
. As illustration a button click is used in the article, however you could use different event like pageLoad().
In case you would like to implement the latter, I am afraid that such functionality is not available for the control. In this case you could use the DescriptionTemplate of a RadLightBoxItem and add a control that holds the path to the currently displayed image.
If I have misunderstood what you would like to achieve, would you elaborate in greater detail about the scenario that you would like to implement?
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