Windows Phone 7 to wait for the progress bar to achieve, an example for your reference study.

DanielVaughan.ScrollViewerMonitor
.................................\DanielVaughan.ScrollViewerMonitor
.................................\.................................\App.xaml
.................................\.................................\App.xaml.cs
.................................\.................................\ApplicationIcon.png
.................................\.................................\Background.png
.................................\.................................\Bin
.................................\.................................\...\Debug
.................................\.................................\...\.....\ApplicationIcon.png
.................................\.................................\...\.....\AppManifest.xaml
.................................\.................................\...\.....\Background.png
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.dll
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.pdb
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.xap
.................................\.................................\...\Release
.................................\.................................\DanielVaughan.ScrollViewerMonitor.csproj
.................................\.................................\DanielVaughan.ScrollViewerMonitor.csproj.user
.................................\.................................\Images
.................................\.................................\......\WindowsPhoneExpertsLogo.jpg
.................................\.................................\MainPage.xaml
.................................\.................................\MainPage.xaml.cs
.................................\.................................\MainPageViewModel.cs
.................................\.................................\obj
.................................\.................................\...\Debug
.................................\.................................\...\.....\App.g.cs
.................................\.................................\...\.....\App.g.i.cs
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.csproj.FileListAbsolute.txt
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.dll
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.g.resources
.................................\.................................\...\.....\DanielVaughan.ScrollViewerMonitor.pdb
.................................\.................................\...\.....\DesignTimeResolveAssemblyReferences.cache
.................................\.................................\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
.................................\.................................\...\.....\MainPage.g.cs
.................................\.................................\...\.....\MainPage.g.i.cs
.................................\.................................\...\.....\TempPE
.................................\.................................\...\.....\XapCacheFile.xml
.................................\.................................\Properties
.................................\.................................\..........\AppManifest.xml
.................................\.................................\..........\AssemblyInfo.cs
.................................\.................................\..........\WMAppManifest.xml
.................................\.................................\ScrollViewerMonitor.cs
.................................\.................................\SplashScreenImage.jpg
.................................\.................................\WindowsPhone7Unleashed
.................................\.................................\......

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