Hi all. I'm Ukrainian, because sorry for my lack of English. I have problem with Combobox. I create this object and paste code to Layout "Start of layout Combobox: Add line "800x600". Then, I Run my project, open this combobox (dropdown), have see this text "800x600" and then, after 5 millisecond it closed and i do not have time to select the line. What am I doing wrong? And how to fix it? please help .