I'm using NSOutlineView for the first time and have 3 columns. What I want is for the first column to expand to fill the available space, leaving columns 2 and 3 aligned to the right margin of the NSOutlineView.
I have managed to get the last column to resize by using: -
outlineView.sizeLastColumnToFit()
but so far failed to find out how to size the first column.
Can this be done?