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Created attachment 15102 [details]
ListView virtualization does not seem to work properly in UWP apps.
### Steps to Reproduce
1. Run the attached sample
### Actual Results
The ListView’s ItemSource contains 1000 items. Using the Live Visual Tree tool in VS2015 (Debug > Windows > Live Visual Tree), you can see that the ListView is still creating objects for all items even with ListViewCachingStrategy.RecycleElement set.
### Version Info
Tested with Forms 2.1.0-pre4
### Environment Info
Microsoft Visual Studio Professional 2015
Version 14.0.24720.00 Update 1
Microsoft .NET Framework
Installed Version: Professional
Visual Basic 2015 00322-40000-00000-AA362
Microsoft Visual Basic 2015
Visual C# 2015 00322-40000-00000-AA362
Microsoft Visual C# 2015
Visual C++ 2015 00322-40000-00000-AA362
Microsoft Visual C++ 2015
Windows Phone SDK 8.0 - ENU 00322-40000-00000-AA362
Windows Phone SDK 8.0 - ENU
Application Insights Tools for Visual Studio Package 1.0
Application Insights Tools for Visual Studio
ASP.NET and Web Tools 2015.1 (Beta8) 14.1.11106.0
ASP.NET and Web Tools 2015.1 (Beta8)
ASP.NET Web Frameworks and Tools 2012.2 4.1.41102.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563
ASP.NET Web Frameworks and Tools 2013 5.2.30624.0
For additional information, visit http://www.asp.net/
Common Azure Tools 1.5
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
A Visual Studio Extension that brings the GitHub Flow into Visual Studio.
Microsoft Azure Mobile Services Tools 1.4
Microsoft Azure Mobile Services Tools
NuGet Package Manager 3.3.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.
PreEmptive Analytics Visualizer 1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.
SQL Server Data Tools 14.0.50616.0
Microsoft SQL Server Data Tools
TypeScript for Microsoft Visual Studio
Visual Studio Tools for Universal Windows Apps 14.0.24720.00
The Visual Studio Tools for Universal Windows apps allow you to build a single universal app experience that can reach every device running Windows 10: phone, tablet, PC, and more. It includes the Microsoft Windows 10 Software Development Kit.
Xamarin 18.104.22.168 (dcea9c1)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 22.214.171.124 (e98e962)
Visual Studio plugin to enable development for Xamarin.Android.
Xamarin.iOS 126.96.36.199 (47eb74b)
Visual Studio extension to enable development for Xamarin.iOS.
At this time, virtualization on UWP requires a fixed RowHeight.
"virtualization on UWP requires a fixed RowHeight."
Is this a specification of UWP?
*** Bug 43299 has been marked as a duplicate of this bug. ***
Should be fixed in 2.3.4-pre1
I have checked this issue with Xamarin.Forms 2.3.4-pre1 and observed that this issue has been fixed.
Hence closing this issue.