Returns a boolean that represents whether or not this table's width will be set automatically by Word.

public boolean AutoWidth{ get; set; }
Public Property AutoWidth() As Boolean

MS Word equivalent: Table menu > Table Properties... > Table tab > Options... > Automatically resize to fit contents

You will have to call table.SetPreferredColumnWidthUnits(i,TableCell.WidthUnits.Auto) to have each column adjusted to fit the text

          boolean autoWidth = oTableFormatting.AutoWidth;
          Dim autoWidth As Boolean = oTableFormatting.AutoWidth