Bug 26007 - Can't edit Entry within a ListView
Summary: Can't edit Entry within a ListView
Status: RESOLVED ANSWERED
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 1.3.1
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2015-01-14 06:15 UTC by Paul Charlton
Modified: 2015-01-27 10:36 UTC (History)
6 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED ANSWERED

Description Paul Charlton 2015-01-14 06:15:49 UTC
Hi,

NB (this may be the same issue as 25659, but thought situation was different enough to raise)

Using a Samsung SM-T210 running JellyBean.  Also noticed on Nexus7 KitKat emulator.

I've pasted a sample app below but I essentially have a set of Entries within a ListView, using a class inherited from ViewCell. The error I'm getting is when tapping the Entry.

Expected behaviour: Entry comes into focus and keyboard appears

Actual Behaviour: Entry flashes, cursor appears briefly and then disappears again. No keyboard activity.


    public class App
    {
        public static Page GetMainPage()
        {
            return new NavigationPage(new TestPage());
        }
    }

public class TestPage : ContentPage
{
    public TestPage()
    {
        var holder = new StackLayout
        {
            Orientation = StackOrientation.Vertical,
            HorizontalOptions = LayoutOptions.FillAndExpand,
            VerticalOptions = LayoutOptions.Center,
            Padding = new Thickness(10, 0, 10, 20),
        };
        var listview = new ListView
        {
            RowHeight = 150,
            VerticalOptions = LayoutOptions.Center,
            ItemsSource = new List<string>{"",""},
            ItemTemplate = new DataTemplate(typeof(TestFieldCell)),
        };
        holder.Children.Add(listview);

        this.Content = holder;
    }
}

public class TestFieldCell:ViewCell
{
    protected override void OnBindingContextChanged()
    {
        base.OnBindingContextChanged();

        View = new Entry();
    }
}
This example app will work fine in forms version 1.2.3.6257, but fails in 1.3.1.6296. 

System info:
Microsoft Visual Studio Ultimate 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.5.51641

Installed Version: Ultimate

Xamarin   3.8.150.0 (10cfd178d55287f09c85f5a1e604dfe20889a40f)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android   4.20.0.28 (ba9bbbdd44cfdc4bf485e8885bd2ad24fba525f7)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.iOS   8.4.0.0 (840a925103a0bf4a856507f13d5eaee3c1579c2f)
Visual Studio extension to enable development for Xamarin.iOS.
Thanks in advance,

Paul.
Comment 1 Ram Chandra 2015-01-14 07:51:32 UTC
I have checked this issue and with the help of bug description I am able to reproduce this issue.

When I deploy the code mentioned in bug description in Xamarin.Forms template. I observed that for android Entry is not working properly.

IDE logs: https://gist.github.com/RamChBachkheti/b19da04419a341b724b1
Device Logs: https://gist.github.com/RamChBachkheti/5a9fa12c162dc0267c62

Additional Note: I am not getting this behavior on windows emulator

Please let me know if I can provide more info to this issue.

Environment Info

Xamarin.Forms.1.3.1.6296
Microsoft Visual Studio Professional 2013
Version 12.0.30723.00 Update 3
Microsoft .NET Framework
Version 4.5.51641

Installed Version: Professional

LightSwitch for Visual Studio 2013   06177-004-0447006-02641
Microsoft LightSwitch for Visual Studio 2013

Team Explorer for Visual Studio 2013   06177-004-0447006-02641
Microsoft Team Explorer for Visual Studio 2013

Visual Basic 2013   06177-004-0447006-02641
Microsoft Visual Basic 2013

Visual C# 2013   06177-004-0447006-02641
Microsoft Visual C# 2013

Visual C++ 2013   06177-004-0447006-02641
Microsoft Visual C++ 2013

Visual F# 2013   06177-004-0447006-02641
Microsoft Visual F# 2013

Visual Studio 2013 Code Analysis Spell Checker   06177-004-0447006-02641
Microsoft® Visual Studio® 2013 Code Analysis Spell Checker

Portions of International CorrectSpell™ spelling correction system © 1993 by Lernout & Hauspie Speech Products N.V. All rights reserved.

The American Heritage® Dictionary of the English Language, Third Edition Copyright © 1992 Houghton Mifflin Company. Electronic version licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

Windows Phone SDK 8.0 - ENU   06177-004-0447006-02641
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   12.3.50717.0
Microsoft Web Developer Tools contains the following components:
Support for creating and opening ASP.NET web projects
Browser Link: A communication channel between Visual Studio and browsers
Editor extensions for HTML, CSS, and JavaScript
Page Inspector: Inspection tool for ASP.NET web projects
Scaffolding: A framework for building and running code generators
Server Explorer extensions for Microsoft Azure Websites
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Microsoft Azure

ASP.NET Web Frameworks and Tools 2012.2   4.1.21001.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563

ASP.NET Web Frameworks and Tools 2013   5.2.20703.0
For additional information, visit http://www.asp.net/

Common Azure Tools   1.2
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Microsoft Advertising SDK for Windows Phone   
Microsoft Advertising SDK for Windows Phone
Build 

Microsoft Azure Mobile Services Tools   1.2
Microsoft Azure Mobile Services Tools

NuGet Package Manager   2.8.50926.663
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.

Office Developer Tools for Visual Studio 2013 ENU   12.0.30626
Microsoft Office Developer Tools for Visual Studio 2013 ENU

PowerShell Tools   1.2
Provides file classification services using PowerShell

PreEmptive Analytics Visualizer   1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.

SQL Server Data Tools   12.0.30919.1
Microsoft SQL Server Data Tools

Windows Phone 8.1 SDK Integration   1.0
This package integrates the tools for the Windows Phone 8.1 SDK into the menus and controls of Visual Studio.

Workflow Manager Tools 1.0   1.0
This package contains the necessary Visual Studio integration components for Workflow Manager.

Xamarin   3.9.236.0 (d6a2cae)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android   4.20.0.34 (49a04b966feb40dfdba49d57ba16249b66d606a6)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.iOS   8.6.0.0 (eb24bdcf5cba2c12b673a07e0a8cce368b9563b3)
Visual Studio extension to enable development for Xamarin.iOS.

Xamarin.iOS Unified Migration   1.0
Automated migration for Xamarin iOS Classic projects to Unified
Comment 2 Jason Smith [MSFT] 2015-01-16 21:42:05 UTC
This is a known issue currently on android due to the way it recycles Views with the current ListView. The issue will be resolved with an upcoming port to RecyclerView (now that its stable). Since this bug depends on that work I am closing this issue for now rather than leaving it in the confirmed queue.
Comment 3 Paul Charlton 2015-01-17 02:17:26 UTC
Hi Jason,
Cheers for the info.
Do you know roughly when this port will be released? Are we talking days/weeks/months?

Thanks,
Paul.