VB.NET Combobox AutoCompleteMode = Append, AutoCompleteSource = ListItems does not work when the DropDown is open -


here combobox settings,

autocompletemode = append
autocompletesource = listitems

in selectionchangecommitted event handler loading other combos based on selectedindex.

when dropdown not open(in case user may select dropdown pressing tab), if user types "abc", item starting "acb" selected , selection retained after user press tab again go next control. in scenario works expected.

but when dropdown open(in case user clicks manually on combobox) , types letters, example "abc", item starting text "abc" highlighted(this normal). problem occurs when user press tab @ stage. combobox revert someother value , highlighted item not selected. appears "append" mode not working when dropdown open, works more "suggest" in case.

i read numerous posts this, not find solution issue. please note don't want close dropdown make work. want dropdown open if user clicks on combo.

any here appreciated.

thanks in advance.


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