Question

ListView.ColumnClick doesn’t seem to fire for clicks in the header area that is outside the columns (area to the right of the last column, if there is any)

is there some easy way to detect clicks here?

Answer 1

The listview header is a seperate entity/window inside the listview control. Unfortunately listview provides no mouse events with which you can capture any activity on the header (except the obvious ones). You are going to have to create extended version of the listview control and use some lower level unmanaged methods to get to that window and make those events available.

You can start here: http://www.codeproject.com/KB/list/HeaderRightClick.aspx.