WP7 - 进度条
使用 Blend 构造 ProgressBar 的最佳方法是什么？
现在我有
LayoutRoot >全景>全景项目> ListBox
我希望在 ListBox“后面”有一个进度条，并在 Web 请求完成时隐藏它。那么，我应该将 ListBox & 放在ProgressBar 变成 StackPanel？或者我应该以编程方式添加或删除列表框/进度栏？
我只是想以最好的方式做到这一点。我找到的大多数教程都是针对位于固定高度区域下方的进度条，并在加载完成时隐藏。
What is the best way to structure a ProgressBar using Blend?
Right now I have
LayoutRoot > Panorama > PanoramaItem > ListBox
I want to have a progress bar 'behind' the ListBox, and hide it when my web request finishes. So, should I put the ListBox & ProgressBar into a StackPanel? Or should I just programatically add or remove the ListBox / ProgressBar?
I just want to do this the best way possible. Most of the tutorials I find are for progress bars that are just underneath an area of fixed height, and hid when loading completes.
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对于 Windows Phone 7.5，您应该使用 SystemTray 类 具有新的 ProgressIndicator 属性。它使您能够快速、轻松地提供进度指示器，并在屏幕顶部为用户提供一致的外观和感觉。这将是最好的用户体验（见下图）:-)
如果您想显示不过，在空列表框的中间，您可以使用进度条来排列两个控件，例如使用网格，并根据需要切换可见性。不建议删除并重新创建这些控件，因为这会在后台使用更大的开销，并且性能可能不太好。但如上所述，最佳实践是使用系统托盘来获取状态信息，包括进度栏。
但是，无论您使用 SystemTray-Class 还是使用 ProgressBar 控件，您不仅应该切换可见性，还应该切换 IsInminated 属性 - 当“true”时，即使 ProgessIndicator 不可见，它也会使用资源！
With Windows Phone 7.5 you should use the SystemTray-class with the new ProgressIndicator property. It enables you to provide a progress indicator quick and easy and with a consistent look'n'feel for the user at the top of your screen. This would be the best user-experience possible (see image below) :-)
If you want to show the progressbar nevertheless in the middle of the empty ListBox you can arrange both controls for example with a Grid and toggle the visibility as you need it. Removing and re-creating those controls isn't recommened because it would use a much larger overhead in the background and may be not very performant. But as mentioned above it would be best-practice to use the system tray for status information, including the ProgressBar.
But wether you use the SystemTray-Class or using a ProgressBar control, you shouldn't only toggle the visibility, but also toggle the IsIndeterminate property - it's using resources when "true", even if the ProgessIndicator isn't visible!