Hello Ragupathi,
The exception message is somewhat unclear and we changed it to
"Complex DataBinding accepts as a data source either an IList or an IListSource." RadComboBox resembles closely the binding behavior of the .NET 2.0 combo box control, and that is why you are able to bind only descendants of the
IList and
IListSource interfaces.
Other than that you really need an
IList implementation to have successful binding even with our
RadGridView control. The other vendors and the .NET 2.0 standard components require
IList as well.
All the best,
Dimitar Kapitanov
the Telerik team
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