Click event in combobox inside Rowexpander Not Working

问题

I'm using a Nested grid with Row Expander plugin. everything is working fine but inside the rowexpander a combo box, which resides inside the 2nd grid, not dropping down when mouse click event is fired.

The combo working properly when the Down/Up arrow keys. This is happening only when I use Chrome/Mozilla. Click event works fine with IE.

来源：https://stackoverflow.com/questions/49029199/click-event-in-combobox-inside-rowexpander-not-working