ListView - adding items require the column headers??

I am now trying to play around with ListView control in place of ListBox control, and trying to replace all my code. I have been successful by looking online and seeing how to add rows and columns etc.

However, in order to be successful, I have found that I need to ensure the column headers are NOT hidden when I add rows. Then later I hide the column headers after adding rows. If I hide the column headers BEFORE adding the rows, the code fails. It does really weird stuff like add the rows (column 1 values) as columns in the first row of the listview.

Why is that? Why does adding rows not work properly unless the columnheaders are unhidden? Thanks

Baffling, played with all combinations for sometime, just used the attached loading work-around.

the code is basically the same as torachan's code.

The issue I think is with the columnheaders. They must be added, even if the hidecolumnheaders = true. If they're not added, then the bug I talked about happens.

Okay. Thanks Andy!