Posted by jpluimers on 2017/12/12
LINQ is certainly extraordinarily useful. It brings the power of query expressions to C#, allowing an easy way of getting the data you need from a variety of data sources. Up to now, there hasn’t been a VS debugger for LINQ that gives you the means to visualise the data at every point in the chain. Michael Sorens, a keen LINQ user, describes a third-party tool that now promises to make using LINQ something we can all participate in.…
Great read. [WayBack] LINQ Debugging and Visualization – Simple Talk
Via: [WayBack] LINQ Debugging and Visualisation – Jeroen Wiert Pluimers – Google+
–jeroen
Posted in .NET, Development, LINQ, Software Development | Leave a Comment »
Posted by jpluimers on 2017/12/11
I while ago I had the error “error accessing the registry” while importing.
In my case I had escaped too many back-slashes. Not just the file names in the values, also the registry key names.
So I had key names like this:
[HKEY_CURRENT_USER\\Software]
That fails, but the error won’t tell you why. The key needs to be this:
[HKEY_CURRENT_USER\Software]
BTW: you do not need regedit.exe to import as reg.exe can do the same: [WayBack] How to add a .REG file to your Registry silently – Scott Hanselman
–jeroen
Posted in Development, Registry Files, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/12/11
schtasks /End [/S <system> [/U <username> [/P [<password>]]]] /TN taskname
[WayBack] End a Running Task
Every now and then you have those Scheduled Tasks consisting of batch files that – despite trying – still ask for user input.
If – even after a reasonable time out – the Task Scheduler still hasn’t killed them, you can kill them by hand with the above schtasks in a snap.
–jeroen
Posted in Console (command prompt window), Power User, Windows, Windows 10, Windows 7, Windows 8, Windows 8.1, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016 | Leave a Comment »
Posted by jpluimers on 2017/12/07
Since I’m in a C mood today: Free book: [WayBack] Writing Bug-Free C Code, A Programming Style That Automatically Detects Bugs in C Codeby Jerry Jongerius / January 1995.
Be sure to credit the author.
Via: [WayBack] Writing Bug-Free C Code A Programming Style That Automatically Detects Bugs in C Codeby Jerry Jongerius / January 1995 – Ilya S – Google+
–jeroen
Posted in C, Development, Software Development | 1 Comment »
Posted by jpluimers on 2017/12/07
Ah, C. The best lingua franca we have… because we have no other lingua francas. Linguae franca. Surgeons general? C is fairly old — 44 years, now! — and comes from a time when there were possibly more architectures than programming languages. It works well for what it is, and what it is is a relatively simple layer of indirection atop assembly. Alas, the popularity of C has led to a number of programming languages’ taking significant cues from its design, and parts of its design are… slightly questionable. I’ve gone through some common features that probably should’ve stayed in C and my justification for saying so. The features are listed in rough order from (I hope) least to most controversial. The idea is that C fans will give up when I call it “weakly typed” and not even get to the part where I rag on braces. Wait, crap, I gave it away.
Great re-read towards the end of the year: [WayBack] Let’s stop copying C / fuzzy notepad
Via: [WayBack] Old and busted: emacs vs vi. New and hot: Language war, everybody against everybody else. – Kristian Köhntopp – Google+
–jeroen
Posted in .NET, APL, Awk, bash, BASIC, C, C#, C++, COBOL, CoffeeScript, CommandLine, D, Delphi, Development, F#, Fortran, Go (golang), Java, Java Platform, JavaScript/ECMAScript, Pascal, Perl, PHP, PowerShell, PowerShell, Python, Ruby, Scala, Scripting, Software Development, TypeScript, VB.NET, VBScript | 3 Comments »
Posted by jpluimers on 2017/12/06
Oh nice. Feel free to QP. Fails at least in Delphi XE8.
program E2003WithConstsInDescendingClassesConsoleProject;
{$APPTYPE CONSOLE}
uses
ParentUnit in 'ParentUnit.pas',
ChildUnit in 'ChildUnit.pas';
begin
end.
unit ParentUnit;
interface
type
TParent = class
// section can be strict protected, protected, public, published or nothing
const
InitialBooleanValue = False;
InitialIntegerValue = -1;
end;
implementation
end.
unit ChildUnit;
interface
uses
ParentUnit;
type
TChild = class(TParent)
// section can be strict protected, protected, public, published or nothing
const
// Initial and final values need to be different to test the behaviour
FinalBooleanValue = not InitialBooleanValue;
FinalIntegerValue = InitialIntegerValue + 1;
//[dcc32 Error] ChildUnit.pas(13): E2003 Undeclared identifier: 'InitialBooleanValue'
//[dcc32 Error] ChildUnit.pas(14): E2003 Undeclared identifier: 'InitialIntegerValue'
//[dcc32 Error] ChildUnit.pas(14): E2026 Constant expression expected
end;
implementation
end.
[WayBack] Oh nice. Feel free to QP. unit ParentUnit; interface type TParent = class …
Posted in Delphi, Delphi XE8, Development, Software Development | 3 Comments »
Posted by jpluimers on 2017/12/06
If I ever need to read why, here are the explanatory links:
TL;DR:
- You need glue records for your domains if the nameserver is in the same TLD as your domain is (more explanation in the above links).
- Your domain registrar allows you to change both your DNS servers and the glue at the TLD servers.
- Glue records have a TTL at the TLD of 48 hours so changing them takes some waiting.
- This is how you query the glue records so you can verify what’s setup at your DNS servers matches the ones at the TLD servers (in the below examples, replace
google.com by your domain name).
dig +trace +additional google.com
Notes:
At the time of writing the dig output is this:
Read the rest of this entry »
Posted in DNS, Internet, Power User | Leave a Comment »
Brilliant tip:
The Wiert Corner - irregular stream of stuff 