Thank you for writing.
RadGridView does not support join between two tables.
RadGridView binds to collections of bindable types
from many sources including:
RadGridView follows the standard Windows Forms data-binding model. It can data bind to any data-source implementing one of the following interfaces:
- IList interface for one-dimensional arrays.
- IListSource interface (like DataTable and DataSet classes).
- IBindingList interface. For example the generic BindingList<> class.
- IBindingListView interface. For example BindingSource class.
You could take a look at the following article about binding data from two tables in a single DataGridView, where you can find a sample implementation of a such functionality: http://www.codeproject.com/Articles/304297/Data-from-Two-Tables-in-a-Single-DataGridView
I hope this helps.
All the best,
the Telerik team