Archive for the ‘.NET’ Category
Posted by jpluimers on 2009/12/09
Today, I bumped into something utterly strange: requests replayed through Fiddler 2 to a locally running ASP.NET Development Server on Vista using localhost URLs did not give a connection.
I use ASP.NET from both C# and Delphi Prism. Most of my development work is on Windows XP (see notes below) but I test on many platforms.
Moving one of the projects from XP to Vista, and testing with Fiddler, I found that when using Fiddler 2:
This form of URL fails on Vista, but works on XP: http://localhost:49703
This form of URL works both on Vista, and XP: http://127.0.0.1:49703
So on Vista – contrary to XP – localhost requests from Fiddler were in fact being sent to the external network adapter on Vista, and the 127.0.0.1 requests to the internal network adapter.
Since the ASP.NET Development Server is bound only to the internal network adapter, external requests don’t work (boy, I wish they did, it would make some of my debugging so much easier!).
Read the rest of this entry »
Posted in .NET, ASP.NET, C#, Delphi, Development, Fiddler, Keyboards and Keyboard Shortcuts, Prism, Software Development, Web Development | 2 Comments »
Posted by jpluimers on 2009/11/09
This just had this happen on a Windows 2003 server with a client’s client.
Any .asmx page would return a 404 error like this IIS log line shows:
2009-11-06 09:46:05 127.0.0.1 GET /MyVirtualDirectory/MyWebService.asmx – 80 – 127.0.0.1 Mozilla/4.0+(compatible;+MSIE+6.0;+Windows+NT+5.2;+SV1;+.NET+CLR+1.1.4322;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.4506.2152;+.NET+CLR+3.5.30729) 404 2 1260
Searching for “iis 404 2 1260 asp.net” found this top from Marc Valk, that solved the issue: ASP.NET v2.0.5727 was prohibited to run.
Which means that none of the ASP.NET bound extensions would work: they all returned 404 errors.
(Note: if you are wondering where your IIS log files are, this post shows you).
–jeroen
Posted in .NET, ASP.NET, Development, IIS, SOAP/WebServices, Software Development, Web Development | Leave a Comment »
Posted by jpluimers on 2009/10/11
Recently, I had to change the “Password Never Expires” flag for some users on Windows systems.
In the past, there used to be a netuser tool available from WindowsITPro where you could use the pwnexp flag to set or clear that flag.
That tool seems to be vanished, so I was searching for alternatives.
Most alternatives I found depend on some kind of scripting, or the use of the WMIC WMI command line interface: that was “out” because this particular setup is running on Windows XP Embedded, which is trimmed down very much.
The only C# example I found was on CodeProject, but it does
- not take into account the existing flags correctly,
- have hard coded literals without any references where they are from,
- use bit flag arithmetic without letting the C# compiler do its magic with enums,
- use a call to the deprecated InvokeGet method,
- use the Invoke(“Put”, … way of calling that so many people use (which actually should have been an – also deprecated – InvokeSet method),
- use COM Interop
Hence the solution below:
C#, with the proper ADS_USER_FLAG_ENUM enum from the MSDN documentation and no COM Interop, it also moves all literals to constants.
Read the rest of this entry »
Posted in .NET, C#, C# 2.0, CommandLine, Development, Software Development, XP-embedded | Leave a Comment »
Posted by jpluimers on 2009/09/29
Nick Hodges just posted he has become the tpfsadmin on sourceforge: the administrative account for the Turbo Power tools and libraries.
It is not an officially sponsored Embarcadero thing, but at best semi official.
However, it is an admirable step into getting the Turbo Power tools and libraries updated in one central place again.
Those tools include OnGuard, Orpheus, SysTools, FlashFiler, B-TreeFiler, Async Professional and many others.
So if you have your own fork of any of the Turbo Power code from sourceforge, then please drop Nick a note.
Many thanks to Nick!
–jeroen
Posted in .NET, Database Development, Delphi, Development, Software Development, Source Code Management, SourceForge, Web Development | 6 Comments »
Posted by jpluimers on 2009/09/28
At the EKON13 conference, I will be presenting a talk about record and class helpers.
This morning, my laptop did “beeeeeeep beep beep” followed by a deadly silence.
It will take a while before my spare laptop arrives at the hotel and my Vista and VM’s are working again.
So I needed to redo some of my preparations to make sure that I can do a ‘plan B’ if restoring on the spare laptop fails.
Hence below a list of useful links, not yet in a particular order, but it saves you browsing through search engine results sifting the good from the not so good info.
Posted in .NET, .NET CF, Conferences, Delphi, Development, EKON, Event, Software Development | Leave a Comment »
Posted by jpluimers on 2009/09/18
Somehow, CodeCentral managed to not only delete my uploaded CodeRage 4 session materials (the videos are fine!), but also newer uploads with other submissions.
Since I’m in crush mode to get the BASTA! and DelphiLive 2009 Germany sessions done, and all Embarcadero sites having to do with their membership server perform like a dead horse, I have temporary moved the downloads, and corrected my earlier post on the downloads.
I have notified Embarcadero of the problems, so I’m pretty sure they are being addressed on their side as well.
Edit 20090919: Embarcadero indicated that between 20090913 and 20090914 there has been a database restore on CodeCentral. Some entries therefore have been permanently lost.
When I get back from the conferences, and CodeCentral is more responsive, I’ll retry uploading it there, and correct the posts.
In the mean time, be sure not to save shortcuts to the current locations, as they are bound to change.
The are the new download locations can all be found in my xs4all temporary CodeRage 4 2009 download folder.
This is the full list of my CodeRage 4 sessions and places where you can download everything: Read the rest of this entry »
Posted in .NET, ASCII, CodeRage, CommandLine, Conferences, CP437/OEM 437/PC-8, Database Development, Debugging, Delphi, Development, Encoding, Event, Firebird, InterBase, ISO-8859, ISO8859, Prism, Software Development, SQL Server, Unicode, UTF-8, UTF8, Windows-1252 | 1 Comment »
Posted by jpluimers on 2009/09/14
http://it-republik.de/dotnet/basta/The class presented in this article is part of my “.NET Gems – Small Pieces of Code that make your Day” session that will be presented at the BASTA! conference next week in Mainz, Germany.
It is going to be a fun conference, with lots of (internationally) renowned speakers (like Oliver Sturm, Ingo Rammer, Stephen Forte, Neil Ford and Dino Esposito).
Well worth attending!
OK. Let’s show the gems, and assume you are writing a method that is not allowed to let exceptions leave it’s implementation.
This is a common case, for instance you develop COM Servers, Windows Services and to a lesser extent Web Services.
Read the rest of this entry »
Posted in .NET, BASTA!, C#, C# 2.0, Development, Event, Software Development, Visual Studio and tools | Leave a Comment »
Posted by jpluimers on 2009/09/13
Embarcadero has made available the replays of the CodeRage 4 sessions.
You can find them in the CodeRage 4 sessions overview.
In order to download them from that overview, NOTE: To access this session replay, you must be logged into EDN. you can login or sign-up (which is free).
To make it easier to find all the relevant downloads, below is an overview of my sessions and their links.
Let me know what you use it for, I’m always interested!
Update 20090918: changed the download locations because CodeCentral messed up.
Read the rest of this entry »
Posted in .NET, ASCII, C#, C# 2.0, CodeRage, CommandLine, Conferences, CP437/OEM 437/PC-8, Database Development, Debugging, Delphi, Development, Encoding, Event, Firebird, InterBase, ISO-8859, ISO8859, Java, Prism, Software Development, Unicode, UTF-8, UTF8, Visual Studio and tools, XML, XML/XSD, XSD | 4 Comments »
Posted by jpluimers on 2009/09/11
Not only can you watch the video and download the CodeRage 4 session on materials on Using Unicode and Other Encodings in your Programs, but below you can also find the chat transcripts below.
VIP Room Transcript with Q&A
(9/11/2009 9:09:19 AM) The topic is: Session Room 2 – “Using Unicode and Other Encodings in your Programs” by Jeroen Pluimers
Public Room Transcript
(5:52:14 PM) Christine_Ellis has set the topic to: Session Room 2 – “Using Unicode and Other Encodings in your Programs” by Jeroen Pluimers
(9/11/2009 9:12:47 AM) Jeroen_Pluimers: I got a bunch of 406 error messages in the jibber chat client, so I was afraid it lost the connection :-)
(9/11/2009 9:15:45 AM) Jim_Ferguson: Jeroen, Have you been getting a bunch of internal errors when you get fancy with generics?
(9/11/2009 9:15:53 AM) Borland: BTW, DavidI, excellent internet radio choice of KPIG. Very good Blues.
(9/11/2009 9:36:43 AM) Mandy_Walker: http://etncaweb04.embarcadero.com/resources/technical_papers/Delphi-and-Unicode_Marco-Cantu.pdf
(9/11/2009 9:39:14 AM) Jim_Ferguson: Strings are getting fatter on the back end.
(9/11/2009 9:40:39 AM) Mandy_Walker: Sorry, for incorrect link from slide. Better http://etnaweb04.embarcadero.com/resources/technical_papers/
(9/11/2009 9:49:20 AM) Jim_Ferguson: TBYtes and pChar arent equivalt. TBytes is a dynamic array. Shouln’t be pByte instead of TBytes?
(9/11/2009 9:53:05 AM) Jim_Ferguson: Sounds like Intel needs to build Unicode into the processor. There is a lot of out board thinking when it comes to characters now.
(9/11/2009 9:57:19 AM) Mandy_Walker: http://it-republik.de/konferenzen/delphi_live/material/DelpiLive09_Cantu_Unicode.pdf
(9/11/2009 9:58:26 AM) Borland: Thanks Joroen, this was packed with great information sources.
(9/11/2009 9:59:09 AM) Jeroen_Pluimers: http://en.wordpress.com/tag/coderage/
(9/11/2009 9:59:17 AM) Jeroen_Pluimers: https://wiert.wordpress.com/2009/09/09/coderage-4-session-materials-available-for-download/
(9/11/2009 9:59:24 AM) Mandy_Walker: Thx, Jeroen
(9/11/2009 10:00:47 AM) Erwin_Mouthaan: Bedankt Jeroen. Leuke presentatie!
(9/11/2009 10:01:04 AM) jthurman: Jeroen is a marching band guy?
(9/11/2009 10:01:05 AM) M_L: Thanks!
(9/11/2009 10:01:21 AM) Jeroen_Pluimers: http://www.wmc.nl
(9/11/2009 10:01:22 AM) Giel: Bedankt Jeroen!
(9/11/2009 10:01:32 AM) Robert_D_Smith: I played snare and bass drum, Jeroen
(9/11/2009 10:01:40 AM) jthurman: Jeroen: I teach high school marching band in the USA. We should talk sometime.
(9/11/2009 10:02:05 AM) Jeroen_Pluimers: write me an email: jeroen@pluimers.com
(9/11/2009 10:02:09 AM) jthurman: Will do
(9/11/2009 10:02:45 AM) Robert_Evans: Thanks Jeroen. Great stuff!
(9/11/2009 10:03:11 AM) Jeroen_Pluimers: you are welcome; let me know when you have questions or run into things that I might be able to help with
(9/11/2009 10:04:48 AM) Jeroen_Pluimers: talking about migration projects: we have done quite a few for clients; so if you need help with that as well, drop me an email
(9/11/2009 10:05:46 AM) Christine_Ellis has set the topic to: Session Room 2 – “New Features in the RAD Studio IDE” by Mark Duncan & Darren Kosinski
–jeroen
Posted in .NET, C#, CommandLine, Delphi, Development, Encoding, ISO-8859, ISO8859, Prism, Software Development, Unicode, UTF-8, UTF8, XML, XML/XSD, XSD | 1 Comment »
Posted by jpluimers on 2009/09/10
Every now and then I need the ASP.NET RegularExpressionValidator control to validate some user input on a web-page using .NET Regular Expressions (which are very similar to regular expressions used in other languages and frameworks).
Somehow, I have lost loads of time because many of the hits on Google show up high in the results, but do not actually help that much.
So I decided to put up a bunch of links to pages that I think are relevant, or helped me much.
This list is not definitive: please comment when you have links to better information!
Note: this list is current at the instant of the latest edit timestamp: tools might have improved (or disappeared) since then.
Opnions are mine; if you do not agree: please convince me why.
Tools
Regular Expression builder applications
- Expresso – free .NET WinForms application to visually build and test regular expressions (free registraion required after 60 days of trial usage)
- RegexWorkbench – free .NET WinForms application to build and test regular expressions (much more rudimentary than Expresso)
Regular Expression test applications
- RegexLib tester – free on-line regular expresion tester where you can choose the client platform (.NET/ClientSide/SilverLight)
- The Regulator – free .NET WinForms application to test regular expressions with built in support for RegexLib.com
- The Regex Coach – free LISP Windows application to test regular expressions and tries to explain them in plain english
- RegExPal – free on-line JavaScript regular expression tester (tests the client side only)
- ReWork – free on-line JavaScript tester with samples in JavaScript/PHP/Python/Ruby
- RegexDesigner.NET – free .NET WinForms application to test regular expressions and generate C#/VB.NET code from them (ot really a “Designer” after all and much less sophisticated than The Regulator)
Tools lists
Tools not worth looking at
- Regulazy – too rudimentary
Sites/Documentation/Examples
Some comments on common regular expression solutions
- RegEx for email usuaully reject valid email adresses like jeroen+info@pluimers.subdomain.info
Dominic has some very nice info on validating email adresses
- RegEx for a minimum number of characters usually contain \w, which is not any character!
Better use ^(.{6,})$ than ^(\w{6,})$ if you want a minimum length of 6 characters.
Bugs
Posted in .NET, ASP.NET, Development, Encoding, JavaScript/ECMAScript, LISP, RegEx, Scripting, Software Development, Unicode, Web Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 