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README.md

Bottom-up list (XAML) sample

Shows a ListView that is tailored for scenarios in which the last item is the most interesting. This type of ListView is common for chat windows. You might also find it useful for showing a trace log.

Note: This sample is part of a large collection of UWP feature samples. If you are unfamiliar with Git and GitHub, you can download the entire collection as a ZIP file, but be sure to unzip everything to access shared dependencies. For more info on working with the ZIP file, the samples collection, and GitHub, see Get the UWP samples from GitHub. For more samples, see the Samples portal on the Windows Dev Center.

Specifically, this sample shows how to:

  • Set the ItemsStackPanel.ItemsUpdatingScrollMode property to KeepLastItemInView to indicate that the last item should be used as the anchor when performing layout. This affects how the scroll offset is persisted, how it is maintained when items are added/removed, and the animation that occurs when items are added/removed.
  • Save and restore the scroll position.
  • Add older items to the top of the list incrementally.
  • Manually trigger the ISupportIncrementalLoading.LoadMoreAsync method as the scroll position nears the top of the list.

Note The Windows universal samples require Visual Studio 2015 to build and Windows 10 to execute.

To obtain information about Windows 10 development, go to the Windows Dev Center

To obtain information about Microsoft Visual Studio 2015 and the tools for developing Windows apps, go to Visual Studio 2015

System requirements

Client: Windows 10 build 14295

Server: Windows Server 2016 Technical Preview

Phone: Windows 10 build 14295

Build the sample

  1. If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.
  2. Start Microsoft Visual Studio 2015 and select File > Open > Project/Solution.
  3. Starting in the folder where you unzipped the samples, go to the Samples subfolder, then the subfolder for this specific sample, then the subfolder for your preferred language (C++, C#, or JavaScript). Double-click the Visual Studio 2015 Solution (.sln) file.
  4. Press Ctrl+Shift+B, or select Build > Build Solution.

Run the sample

The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.

Deploying the sample

  • Select Build > Deploy Solution.

Deploying and running the sample

  • To debug the sample and then run it, press F5 or select Debug > Start Debugging. To run the sample without debugging, press Ctrl+F5 or selectDebug > Start Without Debugging.