I am specifying DropDownAutoWidth="Enabled" on the RadComboBox and that works just fine; the dropdown list extends to the width of the longest item.
However, when I then select that item, the input area truncates it. Is it possible to get the width of the drop down list and use that to set the width of the combo box itself (prior to the page displaying)? I've tried retrieving the DropDownWidth in the DataBound event, but it appears to be zero. An alternative I've explored is using the method here
to determine a width and then set both the DropDownWidth and the combo box's width to that value, but it seems cleaner to get the width the combo box determines itself if that's possible.