visual-studio-2015 interview questions
Top visual-studio-2015 frequently asked interview questions
When debugging a C# application in Visual Studio 2015, Diagnostic Tools starts automatically. I unchecked both checkboxes in Select Tools, but it doesn't seem to completely disable it.
How do I turn it off (and on again later)?
Source: (StackOverflow)
I installed Visual Studio 14. Now I have a new app VsHub in the system tray / notification area. What is it? I tried clicking and right-clicking on it, it doesn't do anything.
Source: (StackOverflow)
I am testing Visual Studio 2015 with C# 6.0 but the language features are not working. In an MVC web application, the following code does compile:
if (!string.IsNullOrWhiteSpace(Model.Profile?.TypeName))
{
// More logic here...
}
However, when I run the application via Debug and IIS Express, I get the following error:
CS1525: Invalid expression term '.'
Is there something more I need to do to enable these features?
Source: (StackOverflow)
Does anyone know how to get my class name and method name dropdown lists again? It's the dropdown lists that are usually above the code. It's just a setting but i can't seem to find it. I don't want to reset my setting btw. I shouldn't have to.
Source: (StackOverflow)
I installed Visual Studio Update 1 yesterday and now when running ASP.NET services locally on IIS (not the express version). I am seeing hundreds of requests per second to the address
http://localhost:49155/vshub/ca9dea4b016f45c68a6a8c1a07809eb4/DataWarehouseModule/dataWarehouse/getStatus/
What is causing this and is it preventable?
Source: (StackOverflow)
In Visual Studio 2015 RC, there was that Feedback smiley in the upper right of the main window.
Unfortunately, it is still there in the final release of Visual Studio 2015:
I've searched all through the options and settings and found no way to hide this smiley.
My question:
Any option or other (Registry etc.) hack to remove the smiley?
Update 2015-12-01:
Yesterday Update 1 for Visual Studio was released.
While I still find no option to hide the smiley, they at least provided a less distracting icon for it:
Source: (StackOverflow)
Today I installed VS 2015 on Windows 7 x64. Mainly to test new .Net Core features and etc. And for test I created new C# "Console Application (Package)" solution and got this message:
DNX SDK version 'dnx-clr-win-x86.1.0.0-beta5' failed to install. The solution will use DNX SDK version ‘dnx-clr-win-x86.1.0.0-beta5’ for this session.
I can't compile and debug project. Also, when I have opened debug tab in project properties then VS crashed.
DNVM output when I opened solution:
Invoke-Command : The term 'x86' is not recognized as the name of a cmdlet, func
tion, script file, or operable program. Check the spelling of the name, or if a
path was included, verify that the path is correct and try again.
C:\Program Files\Microsoft DNX\Dnvm\dnvm.ps1:1451 ????:27
+ Invoke-Command <<<< ([ScriptBlock]::Create("dnvm-$cmd $cmdargs")
)
+ CategoryInfo : ObjectNotFound: (x86:String) [Invoke-Command], C
ommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException,Microsoft.PowerShell.Co
mmands.InvokeCommandCommand
Invoke-Command : The term 'x86' is not recognized as the name of a cmdlet, func
tion, script file, or operable program. Check the spelling of the name, or if a
path was included, verify that the path is correct and try again.
C:\Program Files\Microsoft DNX\Dnvm\dnvm.ps1:1451 ????:27
+ Invoke-Command <<<< ([ScriptBlock]::Create("dnvm-$cmd $cmdargs")
)
+ CategoryInfo : ObjectNotFound: (x86:String) [Invoke-Command], C
ommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException,Microsoft.PowerShell.Co
mmands.InvokeCommandCommand
Invoke-Command : The term 'x86' is not recognized as the name of a cmdlet, func
tion, script file, or operable program. Check the spelling of the name, or if a
path was included, verify that the path is correct and try again.
C:\Program Files\Microsoft DNX\Dnvm\dnvm.ps1:1451 ????:27
+ Invoke-Command <<<< ([ScriptBlock]::Create("dnvm-$cmd $cmdargs")
)
+ CategoryInfo : ObjectNotFound: (x86:String) [Invoke-Command], C
ommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException,Microsoft.PowerShell.Co
mmands.InvokeCommandCommand
Any ideas how to fix it?
Also, I have previously installed VS 2015 Preview and DNX/DNVM separately. But I think, I completely removed it before VS 2015 installation. Could this somehow affects current VS installation?
Source: (StackOverflow)
In past versions of Visual Studio, I could create a single-line autoproperty in C# like this:
public int Whatever { get; set; }
If I hit Control-K, Control-D to format, the property would stay that way.
But in Visual Studio 2015 RC, when I type the property, it wraps, and even if I unwrap it, formatting wraps it again:
public int Whatever
{ get; set; }
I've noticed it with constructors as well. In the past, an empty constructor (e.g. that just called a base class constructor) could look like this:
public Whatever(int stuff)
: base(stuff) { }
Now Visual Studio 2015 insists on doing this:
public Whatever(int stuff)
: base(stuff)
{ }
Have others noticed this? Is this a change made in Visual Studio 2015? If so, is there a way I can change it back? I looked through the C# formatting section of Tools > Options, but couldn't find any new setting that might affect this.
(It's not impossible that one of my add-ins is causing it, but I didn't find any obvious culprits.)
(Why even care? Because when I use the Collapse to Definitions outlining command, single-line properties and constructors stay as they are, whereas wrapped ones collapse. If they're collapsed, I can't tell at a glance that they're empty; I have to toggle them to uncollapsed just to see that nothing's there.)
Source: (StackOverflow)
My Razor views in VS2015 RC are not showing the proper coloring for C# code. My project was working fine in VS2013, but it isn't in 2015, and it's not giving me any Intellisense on the C# code. The solution builds and the site runs fine.
I tried the following to no avail
- disabling all Visual Studio extensions
- deleting my
.suo file
- removing the project and re-adding it to the solution
How can I fix this?
Example:
Source: (StackOverflow)
Starting Visual Studio 2015 also launches two other executables :
VsHub.exe
and
Microsoft.VsHub.Server.HttpHost.exe
Both of these take a considerable space in the task manager.
How can I delete this "Visual Studio Hub" option? I don't use any of VS 'top-notch' features, including the VS Hub one.
Source: (StackOverflow)
I just finished the installation and the whole IDE is super slow. It seems like it's making some kind of heavy cpu calls in the background where the whole IDE literally freezes and becomes unresponsive for about 2-3 seconds.
Not having this issue with VS 2013 Ultimate.
Running VS 2015 Professional.
Installed Add-Ons/Packages:
Anyone have any ideas?
Source: (StackOverflow)
Background
We have a project that we're developing in VS 2015 with C#6 enabled that occasionally needs to be opened by developers using VS 2013 without C#6.
We have no intention to use C# 6 within this particular solution (as much as I'd like to).
Problem
Visual Studio and ReSharper suggest helpful C# 6 language constructs that render the solution inoperable in earlier versions of Visual Studio without C#6 support.
I've disabled the ReSharper C#6 support but I can't seem to disable / limit C# features across the whole solution.
Question
How do I limit C# to C#5 capabilities within a solution or within Visual Studio 2015?
Source: (StackOverflow)