Hi Phenicy Informatica Srl .,
Thank you for writing. You can make the tree view to render horizontally by setting the AngleTransform
property of the TreeViewElement but this would cause far too much trouble because the tree view was not designed to work like this. I strongly suggest that you avoid rotating the tree and use it as it is in combination with RadBreadCrumb.
Please write back if you have other questions.
the Telerik team