Toggle infragistics ultradropdown runtime/shortcut key _ urgent _ 500 points

hi experts
I use ultradropdown, put it on ultrawingrid, binding data ...
my question is how to toggle the ultradropdown dropdown when the cell activated by code or shortcut key except mouse,
(I mean without click on the \/ button)
My goal is that showing the selected row during editing/selecting value  

please help
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Please clarify,

If you want to show the dropdown when the cell has the focul Ctrl-DownArrow will do the trick...

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nghiaapAuthor Commented:
thanks eperales
sorry TheLearnedOne
I'll check it, and reply  soon
nghiaapAuthor Commented:
exactly is Alt + down arrow // so unsual :(
thanks eperales again ^ - ^
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