Hello Andrew,
Thanks for writing and for your question.
Q3 2009 release of RadControls for WinForms introduced some improvements in databinding mechanism of RadComboBox. Currently, the
Items collection is populated after the
Binding Context has been initialized (which does not happen in the constructor).
In your case, my suggestion is that you access the combo box items in the
OnLoad event of your form or in the
BindingContextChanged event of
RadComboBox.
I hope this is helpful. You can write back anytime you need further assistance.
Kind regards,
Deyan
the Telerik team