Bug 29004 - Selecting Events tab for a UITextField causes VS to hang/crash
Summary: Selecting Events tab for a UITextField causes VS to hang/crash
Alias: None
Product: Visual Studio Extensions
Classification: Xamarin
Component: iOS Designer ()
Version: 3.11 (C5)
Hardware: PC Mac OS
: High blocker
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2015-04-10 22:20 UTC by Jon Goldberger [MSFT]
Modified: 2015-04-14 12:19 UTC (History)
6 users (show)

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

Test Project (1.05 MB, application/zip)
2015-04-10 22:20 UTC, Jon Goldberger [MSFT]
Logs (180.23 KB, application/zip)
2015-04-10 22:21 UTC, Jon Goldberger [MSFT]

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Description Jon Goldberger [MSFT] 2015-04-10 22:20:57 UTC
Created attachment 10723 [details]
Test Project

## Description

This only seems to occur when the UIViewController that has the UITextField is set to a Custom class and the custom class does not exist. If that is the case, then selecting a UITextField (or any control that has events) on the Designer canvas and then trying to open the Events tab of the Properties panel causes VS to crash. I tested using VS 2013 but the reporting customer said it occurred on VS 2012 as well. 

## Steps to reproduce

1. Open the attached test project.

2.  Open MainStoryboard in iOS Designer.

3. Select the Text Field (or button... label does not cause crash as there are no events for a label) in the isolated view controller on the right of the canvas, the one without the segue to it.

4. Open the Properties panel and select the Events tab. 

Expected result: Events tab, or a dialog, will display with a message that the Custom class does not exist and to please create one (or even better offer to create one).

Actual result: VS hangs and crashes if you click anywhere in the VS window.

## Notes

The workaround is to create the Custom UIViewController class in the source code. 

In Xamarin Studio, you can open the Events tab in this scenario and it looks like you can add events... but you can't. If you type in an event name it just disappears. Perhaps a message here that you need to create the custom class would be good as well, but that is likely a different bug report. :-)

## My environment:

Microsoft Visual Studio Ultimate 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.5.53349

Installed Version: Ultimate

Architecture and Modeling Tools   06181-004-0451031-02209
Microsoft Architecture and Modeling Tools
UML® and Unified Modeling Language™ are trademarks or registered trademarks of the Object Management Group, Inc. in the United States and other countries.

LightSwitch for Visual Studio 2013   06181-004-0451031-02209
Microsoft LightSwitch for Visual Studio 2013

Team Explorer for Visual Studio 2013   06181-004-0451031-02209
Microsoft Team Explorer for Visual Studio 2013

Visual Basic 2013   06181-004-0451031-02209
Microsoft Visual Basic 2013

Visual C# 2013   06181-004-0451031-02209
Microsoft Visual C# 2013

Visual C++ 2013   06181-004-0451031-02209
Microsoft Visual C++ 2013

Visual F# 2013   06181-004-0451031-02209
Microsoft Visual F# 2013

Visual Studio 2013 Code Analysis Spell Checker   06181-004-0451031-02209
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   06181-004-0451031-02209
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   12.4.51016.0
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   5.2.21010.0
For additional information, visit http://www.asp.net/

Common Azure Tools   1.3
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

Microsoft Azure HDInsight HQL Service   1.0.0000.0
Language service for Hive query

Microsoft Azure HDInsight Tools for Visual Studio   1.0.0000.0
An integrated development environment for HDInsight application development.

Microsoft Azure Mobile Services Tools   1.3
Microsoft Azure Mobile Services Tools

Microsoft Azure Tools   2.4
Microsoft Azure Tools for Microsoft Visual Studio 2013 - v2.4.20730.1601

Microsoft Azure Tools   2.5
Microsoft Azure Tools for Microsoft Visual Studio 2013 - v2.5.21104.1601

Multilingual App Toolkit   3.1.1250.0
Multilingual App Toolkit helps you localize your Windows Store app by providing file management, pseudo and machine translation, translation editor, and build integration. http://go.microsoft.com/fwlink?linkid=245767

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   12.0.31105
Microsoft Office Developer Tools for Visual Studio 2013 ENU

PowerShell Tools   1.3
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   12.0.41025.0
Microsoft SQL Server Data Tools

Windows Azure Tools   2.3
Windows Azure Tools for Microsoft Visual Studio 2013 - v2.3.20320.1602

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   3.9.547.0 (20fd2f0)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android (86274adfc6418b4c3a9d67734eb871163859b51c)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.iOS (02a05754f85064ec222c8a1a975761debfe7122d)
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 1 Jon Goldberger [MSFT] 2015-04-10 22:21:38 UTC
Created attachment 10724 [details]

iOS and XVS Log files
Comment 2 Alan McGovern 2015-04-13 04:51:58 UTC
Fixed in master and backport pending for the current release cycle
Comment 3 Shruti 2015-04-13 09:25:46 UTC
I have checked this issue with latest master build which is available to us Xamarin.VisualStudio_5.0.566_8f3e1ae94135ca9e82d4fa1d0039d525feb98c2f and observed that issue is still exists with this build.  Here is the screencast regarding same :  http://www.screencast.com/t/KJoMql0LK5O

Can you please let me know in which build we can get the fix of this issue.
Comment 4 PJ 2015-04-13 13:11:45 UTC
I mentioned on the trello card but I'll say here too - this is ready to be verified with XS on master, and then we'll backport to both the XS and VS Cycle 5 release branches.
Comment 5 Shruti 2015-04-14 12:19:00 UTC
I have checked this issue with Master XVS 5.0.566, C5 XVS 3.11.428  and XS 5.9 (build 426). It is working fine for both builds.

I observed that VS is not getting crashed after following steps given in comment(0). 
Screencast regarding same : http://www.screencast.com/t/M6KzqcXaP3yR
Environment Info : https://gist.github.com/Shruti360/636773fdb8ed8cad361f

Screencast for XS : http://www.screencast.com/t/4cFnPRSz
XS Environment Info :https://gist.github.com/sunil360/f4ccb91ea271017d0b96

Hence, I am closing this issue.