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Created attachment 17837 [details]
Visual Studio project to reproduce the problem in this bug report
=== Overview ===
On UWP, using Xamarin.Forms, if a Behavior modifies the BackgroundColor of an Entry, then the set background color will stick when the Entry is unfocused, even if the background color is changed to something else. It is as if the initial setting of the background color sets a focused and unfocused background colors and any subsequent color change only sets the focused background color.
A tarball containing a reproducing project is attached.
=== Steps to Reproduce ===
Using the attached project:
1. First Entry on MainView starts with Red background since it has a Behavior which detects empty string.
2. Type non-empty string to the first Entry. Notice how the background is now white due to the Behavior.
3. Focus second entry. The first entry background is now pink, which is unexpected.
4. Press button "Default background". The first entry will stay pink.
=== Expected Behavior ===
Setting Entry background color should change for both focused and unfocused Entry state.
=== Actual Behavior ===
When Behavior sets the background color of an Entry, the set color will stick when entry is unfocused and cannot be changed.
=== Visual Studio===
Microsoft Visual Studio Community 2015
Version 14.0.25431.01 Update 3
Microsoft .NET Framework
Installed Version: Community
Visual Basic 2015 00322-20000-00000-AA752
Microsoft Visual Basic 2015
Visual C# 2015 00322-20000-00000-AA752
Microsoft Visual C# 2015
Visual C++ 2015 00322-20000-00000-AA752
Microsoft Visual C++ 2015
Windows Phone SDK 8.0 - ENU 00322-20000-00000-AA752
Windows Phone SDK 8.0 - ENU
Application Insights Tools for Visual Studio Package 7.8.00927.1
Application Insights Tools for Visual Studio
ASP.NET and Web Tools 2015.1 14.1.20810.0
ASP.NET and Web Tools 2015.1
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 5.2.40314.0
For additional information, visit http://www.asp.net/
AWS Toolkit for Visual Studio 2015 188.8.131.52
AWS Toolkit for Visual Studio 2015.
Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
This software includes third party software subject to the following copyrights:
- Logging from log4net, Apache License
- Putty for PPK to PEM conversion, MIT license
- NGit for AWS Elastic Beanstalk incremental push
- NSch dependency for NGit
- Sharpen dependency for NGit
- ICSharpCode.SharpZipLib dependency for NGit
- Mono.Posix.dll and Mono.Security.dll dependencies for NGit
- MPFProj for Visual Studio Project Framework
- JSON Checker for JSON validation
Azure App Service Tools v2.8.1 14.0.11123.0
Azure App Service Tools v2.8.1
Command Bus, Event Stream and Async Manager Merq
Provides ICommandBus, IEventStream and IAsyncManager MEF services for loosely coupled Visual Studio extension components communication and integration.
Common Azure Tools 1.8
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
Microsoft .NET Core Tools (Preview 2) 14.1.20810.0
Microsoft .NET Core Tools (Preview 2)
Microsoft Azure Mobile Services Tools 1.4
Microsoft Azure Mobile Services Tools
NuGet Package Manager 3.5.0
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 14.0.60519.0
Microsoft SQL Server Data Tools
TypeScript tools for Visual Studio
Visual Studio Tools for Universal Windows Apps 14.0.25527.01
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 184.108.40.2065 (7603786)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 220.127.116.11 (c1d1c79)
Visual Studio extension to enable development for Xamarin.Android.
Xamarin.iOS 10.0.0.1 (29910bb)
Visual Studio extension to enable development for Xamarin.iOS.
=== Operating System ===
OS Name Microsoft Windows 10 Home
Version 10.0.14393 Build 14393
Should be fixed in 2.3.5-pre1
Verified on xamarin.form version 18.104.22.1686-pre6
ScreenCast link : https://www.screencast.com/t/HI2dkSVEY51
Hence marking this issue as verified