Gets or sets the maximum fraction of the last line's height overflowing beyond the layout bounds for that line not to be truncated. The default is 0 (last line must completely fit within the layout bounds). Valid values are from 0 to 1. This property does not affect values returned by ContentHeightFitsInBounds or ContentWidthFitsInBounds. This property is ignored if ObjectRects is not null.

public System.float MaxLastLineOverflowFactor {get; set;}

'Declaration
 
Public Property MaxLastLineOverflowFactor As System.Single