var instance = new GC.Spread.Pivot.PivotTableStyle(backColor,
                                                  foreColor,
                                                  font,
                                                  borderLeft,
                                                  borderTop,
                                                  borderRight,
                                                  borderBottom,
                                                  borderHorizontal,
                                                  borderVertical,
                                                  textDecoration);
var value; // Type: TextDecorationType
value = instance.textDecoration;