Adding C# class to SSDT project breaks Solution Explorer file expand and Code Map features for all projects in solution - by PashaPash

Status : 

  Fixed<br /><br />
		This item has been fixed in the current or upcoming version of this product.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.


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ID 774868 Comments
Status Closed Workarounds
Type Bug Repros 3
Opened 12/20/2012 6:51:23 AM
Access Restriction Public

Description

When class (or any C# file) added to SSDT project, solution explorer stops expanding files to class level. SL still shows expand ">" symbols for all files, but shows nothing in that file when clicked.
All projects in solution, not only SSDT project, are affected. Code Maps are broken for all projects too.

I tried to attach a debugger to VS, and got en exception when broken expand icon is clicked:
ArgumentNullException: "Value cannot be null.\r\nParameter name: key"
at 
>	mscorlib.dll!System.Collections.Generic.Dictionary<System.Uri,Microsoft.RestrictedUsage.CSharp.Compiler.IDE.IDECompiler>.Insert(System.Uri key, Microsoft.RestrictedUsage.CSharp.Compiler.IDE.IDECompiler value, bool add) + 0x2c2 bytes	
 	Microsoft.VisualStudio.Progression.LanguageService.CSharp.dll!Microsoft.VisualStudio.Progression.LanguageService.CSharp.CSLanSvcProvider.GetIDECompilers.AnonymousMethod__6(object objContext) + 0x25a bytes	
 	Microsoft.VisualStudio.Progression.Common.dll!Microsoft.VisualStudio.Progression.UIThread.RunTask(Microsoft.VisualStudio.Progression.UIThread.TaskData taskData) + 0x46 bytes	
 	Microsoft.VisualStudio.Progression.Common.dll!Microsoft.VisualStudio.Progression.UIThread.PumpTasks() + 0xac bytes	
 	Microsoft.VisualStudio.Progression.Common.dll!Microsoft.VisualStudio.Progression.UIThread.OnTick(object sender, System.EventArgs e) + 0x15 bytes	
 	WindowsBase.dll!System.Windows.Threading.DispatcherTimer.FireTick(object unused) + 0x2f bytes	

unloading SSDT project helps, but next time it's loaded Solution Explorer breaks again.
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Posted by Microsoft on 2/14/2013 at 2:16 PM
Thanks for the feedback. We have fixed this issue for the next release of the Visual Studio 2012 Update.
Posted by poochyellowbus182 on 2/10/2013 at 9:48 PM
It is late thank you good night.
Posted by Microsoft on 12/20/2012 at 11:16 PM
Thanks for your feedback.

We are rerouting this issue to the appropriate group within the Visual Studio Product Team for triage and resolution. These specialized experts will follow-up with your issue.
Posted by Microsoft on 12/20/2012 at 7:50 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)
Posted by PashaPash on 12/20/2012 at 6:54 AM
I attached a sample project to reproduce the issue.