Make the last cell in a TreeGridView auto size to the full width of the control

[Xavier Flix]

I have a `TreeGridView` where the last cell needs to be as wide as possible.

here, I need the "Progress" cell to expand to fill the full available width.

Under WinForms, this can be done for the `ListView` control by setting the last column's width to -2

Is there anyway to do the same for the `TreeGridView` control?