Thanks for pointing me out the sample . I took a look and here are my findings :
However the DataContext of the cell, when data is loaded , is set to the business object relevant to the row , not the datacontext of the page.
Means "Take the items source from the Countries property of the datacontext of the cell".
This is by design .
In other words:
The datacontext of the cell will be a "People" object , which of course does not have the "Countries" property .
That is why the binding gets broken .
Hope this clarifies the things.
the Telerik team
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