Hello Andreas,
Such an issue may appear of the different levels in your data hierarchy have differently named collection of children. Then the
Breadcrumb control will need an
ItemTemplateSelector class to apply different templates on the different levels of the hierarchy.
We prepared a sample solution demonstrating how to use a hierarchy of different data objects and display it in a
RadTreeView using
LoadOnDemand. The
Breadcrumb control in the sample solution displays the same collection as the RadTreeView and on our side, as soon as an item loads its children on demand, the
RadBreadcrumb control data is updated accordingly.
Please try the solution on your side and let us know if it works for you or if we've missed something.
All the best,
Pavel R. Pavlov
the Telerik team