How do I set the webcombo properties so that the dropdown portion is displayed on databind without needing to click the down button in the textbox looking field?
You can use the setDropDown client side method to show/hide drop down on the client:
http://help.infragistics.com/NetAdvantage/ASPNET/2010.2/CLR4.0/?page=WebCombo_Object_CSOM.html
-Taz.