Hi all, I want to do the same thing but the link is broken!?
The DropDownWidth of my combobox is wide enough to show the contents while I select, but then once I've made my selection and the combobox closes, the contents in the inputcell area don't "look pretty". What I mean to say is that the start of the visible text isn't the start of my selection.
If I could set the caret to the start of my selection, this would tidy up the control and make the page look much better.