Hi I havent used this kind of listbox before so a few pointers would be gratefully received. At the moment my listbox contains 9 columns, some hidden, some not. One of the arrays holds information as to whether a row is designated as "start" or "end" If a row is designated as "Start", columns 1,2,3,4,5,7.9 are populated the remaining columns are "" if a row is designtaed as "End", columns 6,8,9 are populated the remaining columns are "" I want the start columns to be the top level, and the end columns to be the second level of the hierarchy. So I can collapse the rows to show only the top level rows (starts), or expand the rows to show the top level rows with the second level rows underneath them, sorted in chronological order. Start End Start End ....... Is what I'm asking even possible and if so how do I go about it. I considered using ListBox Set Row Height and setting the row height to 0, so as not to display it. but this command is not available in v13 thanks for any help
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