Combobox not allowing mouse dropdown/select

Hello, using pro version 4.6

I just discovered that in version 4.6 I cannot use the mouse to activate the dropdown. I click inside of the combobox but I have to use my arrow keys to activate the dropdown and select. My combobox is inside of a tab control. I went back to version 4.1.2 and it worked fine. I’m testing with IE11.




I had the same problem. I solved it adding this :
combo_init.attachEvent( ‘onFocus’, function(){
} );

Hi to all.

Can anyone provide us complete demo including all correspondnig js/css files?
Please also add information regarding current and expected behaviour.

Here is a small guide how to make a complete demo: … pport.html

If you don’t want to share your demo here for any reasons - you can send it to, if so - please include link to this forum topic.

If you’re using PRO Edition please send your demo to

Thanks in advance.

Sorry for dragging old thread.
I’m facing similar issue with latest version. For demo one can also use dhtmlx combo online sample.
Internet explorer 11 Enterprise mode
Document mode 8.

Unfortunately the problem cannot be reproduced locally.
Please, refer to the following video:

If the problem still occurs for you please, provide a complete demo, where the problem can be reconstructed.