| Value | Meaning |
|---|---|
| content | Fit the widest cell in the column (LVSCW_AUTOSIZE; WinForms -1). |
| header | Fit the header text (LVSCW_AUTOSIZE_USEHEADER; WinForms -2). Applied to the *last* column the native control instead stretches it to fill the list's remaining width — the usual way to make a final column absorb the slack. |
How a column should auto-size itself to fit, for ListView.autoSizeColumn.
This is the analog of WinForms' negative column-width sentinels: content matches -1 (fit the data) and header matches -2 (fit the header text).