How to disable writing text in the dhtmlXCombo element

Suite and Optimus Suite 5
#1

I would like know if in the dhtmlXCombo element it is possible to disable writing text (I just want it works like a select).

Thank you!

P.S. I tried to use

z.enableFilteringMode(false);

but it doesn’t work.

#2

z.readonly(true);

Cheers

#3

Thank you!