How do I get combo text in AJAX return from web services

HI Guys,
I can loaded dynamic data into htmlxCombo object return from web service but I can’t get filter works. for example: If I type letter “G” or “g”. I should be pass it into webservice. but I can’t get this value even I use “comb.getComboText()”. this method doesn’t work in this case. anyone can help?
Note: try to use it in Ajax.

Thanks
Helen

Hi
Here is the sample of using this method:
dhtmlxCombo/samples/04_filtering/01_combo_big_db.html
See it in your suit in any redactor.