LargeChange和SmallChange属性为ProgressBar控件做了什么?

Jer*_*oen 6 wpf properties progress-bar

我目前正在攻读Microsoft.NET Framework 3.5 - Windows Presentation Foundation考试.在我的书中(由Matthew A Stoeckler撰写)它说明了这些属性:

LargeChange
  Represents the amount added to or subtracted from the Value property when a
  large change is required
SmallChange
  Represents the amount added to or subtracted from the Value property when a
  small change is required

我不知道它对进度条意味着什么.

Pau*_*ulB 13

LargeChangeSmallChange不适用于ProgressBar - 它们继承自RangeBase并在ScrollBar中使用.

如果用户单击滚动条末端的箭头(SmallChange)或滑块任意一侧的ScrollBar背景(LargeChange),它们用于确定(至少对于滚动条)滚动的距离