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Posted by jpluimers on 2015/11/26
As a reminder to self: Settings are nice (too bad they advertise them as Windows Forms Application Settings, as they are just as useful for other assemblies), but be aware…
When using Settings.Default, it will get the values to the state of the app.config (or defaults if there is no app.config) of the assembly that defined the settings, not the app.config of the starting process.
This is unless your settings are merged into the app.config of the starting process.
–jeroen
Posted in .NET, .NET 1.x, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2015/11/25
Code Analysis in Visual Studio objects against using very generic exception types:
CA2201 Do not raise reserved exception types
‘BusinessClass<T>.StopProcessing()’ creates an exception of type ‘ApplicationException’, an exception type that is not sufficiently specific and should never be raised by user code. If this exception instance might be thrown, use a different exception type.
Company.Departement.Functionality BusinessClass.cs 157
Indeed ApplicationException and SystemException are bad (both mapping to also very generic COM HRESULT values COR_E_APPLICATION / -2146232832 / 0x80131600 and COR_E_SYSTEM / -2146233087 / 0x80131501).
Using InvalidOperationException is much nicer in this case. It still maps to a COM exception (in this case COR_E_INVALIDOPERATION / -2146233079 / 0x80131509).
–jeroen
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Posted by jpluimers on 2015/11/24
A while ago, I came across a class having (among other members) two methods named like this:
Within one of the other members of the class, I had to (temporarily) Stop processing, then Start it again.
But I couldn’t, as neither Start, nor Stop would make a record of the state it left the instance in.
Always ensure you know the state of an instance.
So I added the state, and tests to ensure a Stop/Start change was indeed not breaking things.
–jeroen
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Posted by jpluimers on 2015/11/03
Lazy<T> is not constrained to static contexts.
Instance field initialisers cannot use instance references (but can use static references) as they run outside of the constructor.Though there are arguments for instance field initialisers too., I think this is a good reason to initialise fields inside the constructor: there you do have access to instance references (but should not call virtual instance methods or properties) which leads to another reason: consistency as field initialisers run in the opposite hierarchy order as constructors (incidentally causing this virtual method restriction).
Boy, that was a long sentence (:
–jeroen
via:
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Posted by jpluimers on 2015/10/06
Get the path to the most recent msbuild.exe from the registry:
| @echo off | |
| :: http://stackoverflow.com/questions/328017/path-to-msbuild | |
| :: http://www.csharp411.com/where-to-find-msbuild-exe/ | |
| :: http://timrayburn.net/blog/visual-studio-2013-and-msbuild/ | |
| :: http://blogs.msdn.com/b/visualstudio/archive/2013/07/24/msbuild-is-now-part-of-visual-studio.aspx | |
| setlocal | |
| :vswhereModernTry | |
| :: https://github.com/Microsoft/vswhere/wiki/Find-MSBuild | |
| :: Normal output example of `vswhere -legacy -latest -property installationPath` has no trailing back-slash: | |
| :: `C:\Program Files (x86)\Microsoft Visual Studio 14.0\` | |
| for /f "usebackq tokens=*" %%i in (`vswhere -latest -products * -requires Microsoft.Component.MSBuild -property installationPath`) do ( | |
| set InstallDir=%%i | |
| ) | |
| :: without ENABLEEXTENSIONS, %InstallDir% is only available outside the above loop. | |
| for %%v in (15.0, 14.0) do ( | |
| if exist "%InstallDir%\MSBuild\%%v\Bin\MSBuild.exe" ( | |
| set msBuildExe="%InstallDir%\MSBuild\%%v\Bin\MSBuild.exe" | |
| goto :finish | |
| ) | |
| ) | |
| :manualTry | |
| :: order of the versions is important: get the most recent one | |
| for %%v in (14.0, 12.0, 4.0, 3.5, 2.0) do ( | |
| for /f "usebackq tokens=2* delims= " %%c in (`reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\%%v" /v MSBuildToolsPath`) do ( | |
| set msBuildExe="%%dMSBuild.exe" | |
| goto :finish | |
| ) | |
| ) | |
| :vswhereLegacyTry | |
| :: -legacy is not compatible with -products or -requires | |
| :: note there is no Visual Studio 13.0 (just like there is no Office 13.0) likely because USA superstition. | |
| :: https://en.wikipedia.org/wiki/Microsoft_Visual_Studio#History | |
| :: msbuild was introduced in Visual Studio 8.0: https://en.wikipedia.org/wiki/MSBuild#History | |
| :: Legacy output example of `vswhere -legacy -latest -property installationPath` has trailing back-slash: | |
| :: `C:\Program Files (x86)\Microsoft Visual Studio 14.0\` | |
| for /f "usebackq tokens=*" %%i in (`vswhere -legacy -latest -property installationPath`) do ( | |
| set InstallDir=%%i | |
| ) | |
| :: without ENABLEEXTENSIONS, %InstallDir% is only available outside the above loop. | |
| for %%v in (14.0, 12.0, 11.0, 10.0, 9.0, 8.0) do ( | |
| if exist "%InstallDir%MSBuild\%%v\Bin\MSBuild.exe" ( | |
| set msBuildExe="%InstallDir%MSBuild\%%v\Bin\MSBuild.exe" | |
| goto :finish | |
| ) | |
| ) | |
| :: nothing found | |
| :finish | |
| endlocal & if not [%msBuildExe%]==[] if exist %msBuildExe% ( echo %msBuildExe% ) |
| for /f "usebackq tokens=*" %%c in (`"%~dp0get-msbuildExe-path.bat"`) do ( | |
| call %%c %* | |
| ) |
With help from:
This needs adoption for Visual Studio 2017 (15.0) and up; see the comments at the above gist:
–jeroen
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Posted by jpluimers on 2015/09/28
I’ve seen this question coming up a few times, and bumped into this at a client recently: the UAC dialog coming up when debugging a 32-bit executable.
This is caused (more details below) by Installer Detection Technology introduced in Windows Vista (with UAC) and tightened in more modern Windows versions.
The solution is to either:
For software you don’t have source code for, you can alter the manifest with a requestedExecutionLevel element: Fixing the way Vista Auto-detects Installers – Ben’s Writing.
A few links on Installer Detection Technology in Windows:
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Posted by jpluimers on 2015/09/01
I like simple solutions, thanks vcsjones for answering this:
Perhaps this:
var str = String.Join(", ", SupportedNotificationMethods.Select(s => s.ToString()));You can read more about the
String.Joinmethod at MSDN. Older versions ofString.Joindon’t have an overload that takes anIEnumerable. In that case just callToArray()after select.
–jeroen
via: c# – Convert List<Enum> to List – Stack Overflow.
Posted in .NET, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, C#, C# 3.0, C# 4.0, C# 5.0, C# 6 (Roslyn), Development, Software Development | Leave a Comment »
Posted by jpluimers on 2015/08/18
Had to investigate some Assembly Loading issues, so I wrote two batch files to enable and disable the .NET Fusion Log:
| reg add "HKLM\Software\Microsoft\Fusion" /v EnableLog /t REG_DWORD /d 0 /f |
| reg add "HKLM\Software\Microsoft\Fusion" /v EnableLog /t REG_DWORD /d 1 /f |
They modify the HKLM\Software\Microsoft\Fusion key REG_DWORD value EnableLog.
A few notes:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fusion you can configure; see the answer by Gary Kindel on StackOverflow:
DWORD ForceLog set value to 1DWORD LogFailures set value to 1DWORD LogResourceBinds set value to 1String LogPath set value to folder for logs e.g. C:\FusionLog\ (ensure the final backslash is there and the folder exists).–jeroen
via:
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Posted by jpluimers on 2015/08/11
I need to give this link from Jonathan Lange which was shared by David Millington some thought:
There they add fuzzers to help testing an ADT: in this case an Abstract Data Type in the form of a red-black tree.
And then see if it can be added to DUnit and NUnit or MSTest/VSTest in some way.
In the original post by Jonathan Lange, an important remark was made by Eric Castelijn:
… the downside being that having non deterministic tests means having test failures that are hard to repeat
…
When fuzzing multiple or composite values, the chances that you will hit interesting edge cases semi-reliably will drop dramatically, in my experience
–jeroen
via “This post has two points. First, you should write ADT fuzzers. It is often….
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Posted by jpluimers on 2015/08/05
Every C#/VB/.NET developer should read Difference Between Int32.Parse, Convert.ToInt32, and Int32.TryParse – CodeProject.
Then also read TryParse with default values.
It is all about handling values that are not Integers, Overflow values and Nulls. There are subtle differences, in the handling of the methods, and the exceptions they could throw: ArgumentNullException, FormatException and OverflowException.
Finally read all about the NumberStyles enumeration, IFormatProvider interface and CultureInfo (especially the difference between InvariantCulture, CurrentCulture, CurrentUICulture and InstalledUICulture).
Because getting your conversions right matters.
–jeroen
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The Wiert Corner - irregular stream of stuff 
lextm commented on Mar 9, 2017 •
vswhereis now recommended to locate MSBuild 15,https://github.com/Microsoft/vswhere
n9 commented on May 17, 2017
vswhere -products *to get standalone installation of BuildTools. (See Microsoft/vswhere#61.)