B&Z Home

Life saver!

Sebastiaan — Tue, 09 Aug 2011 10:12:10 +0000

Ever wondered where a site column is being used when you get the following error?

Site columns which are included in content types cannot be deleted. Remove all references to this site column prior to deleting it.

Well, this handy tool helps you A LOT! Tell around!
http://spsitecolumnusage.codeplex.com/

Get the word out to Sinterklaas!

Sebastiaan — Wed, 26 Jan 2011 13:52:27 +0000

Good news to all kids! You can now send a postal card with your wishlist to Sinterklaas!
Bpost in Belgium will handle these cards with special care to see to it that they are delivered to the good man.

Via: Wimblog

SharePoint 2007 doesn’t like the xml:lang in my master page…

Sebastiaan — Wed, 08 Dec 2010 08:43:50 +0000

Hi there,

I recently needed to make a SharePoint portal XHTML compliant. My html tag was missing the “xml:lang” attribute. So I added it to the master page. That did not work however, SharePoint somehow stripped the “xml:lang” attribute, any other attributes added stayed ok.

So after a few days I stumbled upon this article by Wouter van Vugt who explains how to make your MOSS XHTML compliant. I particularly liked the second step where he creates a custom HTML control and renders its attributes in code. See the article for the details. I hard coded the language, rather than get it from the CultureInfo.

For those who are thinking now: I’m not going to put code on my master page! Right you are. The code isn’t for your master page, but rather for a custom control on that page. So all you need to do is create an assembly (or better: add it in your solution) that has the new control and register its namespace at the top of the page. Then just use it in your page like so:
...
Where I prefix my namespace “loqlang” and I called the control a DynamicLanguageHtmlControl. This must substitue the and tags. Wouter goes over these things quite fast and however he is very correct, the less experienced may be interested in this info.

Hope this helps you as it certainly helped me!

Unable to add selected web part(s)

Sebastiaan — Tue, 07 Dec 2010 09:07:29 +0000

I stumbled upon this post from Mikhail Dikov who explains 7 reasons why a webpart may show up in the webpart chooser but give the mentioned error when adding it to a page.

None of his steps worked for me, but in the comments, Ian Campbell noted very helpfully to check the WebPart Gallery at site collection level. The gallery contained an old version (when looking at the XML) of the webpart, which still referenced a faulty assembly. I deleted it and re-enabled my feature (thus adding it again) and everything worked fine.

Good luck continuing to figure out if this didn’t work for you!

Mandelbrot for Mobile!?

Sebastiaan — Mon, 27 Sep 2010 07:26:28 +0000

Hi all,

A year ago, I would probably have done this in J2ME refusing to have to do anything with Windows development, but by working with .NET I actually realized it isn’t so bad, if not, even handier to create applications. A great example of that is the .NET Compact Framework. Together with Visual Studio and the Windows Mobile 6 SDK, it’s peanuts to make mobile applications.
In this issue, Mandelbrot Fractal navigator for Windows Mobile 6.

Attached here is the download for Mandelbrot for Windows Mobile 6. Some screenshots:

Click here to download the .exe and here to download the ColorMap file. Rename it to *.ColorMap. You can modify the colors as you like, but make sure the file resides in the working dir.

via.

Inversion of Control pattern

Sebastiaan — Wed, 15 Sep 2010 10:38:32 +0000

Today I’ve finally found a very tangible example of what inversion of control actually is.

Here is where i found my example, thank you Martin Fowler!
The example is rather simple actually: inversion of control is used in the graphical user interfaces, as opposed to command line prompts.

In command line prompts (classic control), the application sends prompt messages to the user, and reads the response.
In graphical user interfaces (inversion of control), the user interface framework itself generates events raised by text entered, buttons pressed, which triggers application code. Thus, control is inverted from the application logic itself in classic control schemes to the UI framework in the inversion of control scheme.

It’s actually quite simple, but this example helped me to understand IoC a lot more.

.NET Framework 3.5 machine.config

Sebastiaan — Thu, 02 Sep 2010 13:39:06 +0000

Hi there,

For those out there asking the question: where is my machine.config on my ASP.NET server, read on.

As you all know the machine.config is the master configuration file and the Web.config files overwrite certain values (like the .htaccess overwrites the httpd.conf in Apache).
Some values - like the database transaction timeout - are machine-only settings, which mean they can’t be supplied in the Web.config file.
Instead, it must go into the machine.config. Let’s go looking for that file, shall we?

Easier said than done. Looking through some forums I figured out it was under $WINDOWS_ROOT\Microsoft .NET\Framework\v2.0*\CONFIG\machine.config (with * being the minor version of the 2.0 framework).

Two problems arise here:

I also have a Framework64 folder under Microsoft.NET.
I want to set it for the 3.5 version, not the 2.0 version.

Both are simple problems, but take some time to find out.
The first problem is easily tackled by going to the Task Manager and checking out whether you have w3wp.exe or w3wp*32.exe. If you have the former, go look in the Framework64 directory as you’re running the 64 bit version of the framework. If you have the latter, edit in the Framework folder.

The second problem is a bit trickier, but still easily solved. As the machine.config is related to a certain CLR version, both 2.0 and 3.5 (and hence 3.0) are on the same CLR version, so you can edit the CONFIG\machine.config in the 2.0 folder. Simple, as there is no other folder (3.*) containing a machine.config file.

Concurrency violation: the UpdateCommand affected 0 of the expected 1 records.

Sebastiaan — Tue, 08 Dec 2009 09:39:29 +0000

As I’m working as a .NET developer at LoQutus, my .NET posts will grow increasingly, therefore, there is a new Category “.NET Development”. Read on for the first post!

When working with DataSets, I encountered a strange problem, taking me to a very dark place on the internet: Concurrency handling in ADO.NET.
The cause of the problem had little to do with any concurrency, so read on to find out whether it may solve your problem too!

The problem is now clear to me: I had created new rows in a DataTable, using ImportRow(). I then modified some of their data.
When committing the data from this dataset to the database, I got the following exception:
Concurrency violation: the UpdateCommand affected 0 of the expected 1 records.

This is actually rather unnatural. The ImportRow() method actually sets the RowState of the new row to “Unchanged” rather than “Added”.
So if you set every row’s RowState to “Added” - using the SetAdded() method of that row - the ghost concurrency problem is solved.

Hope anyone finds this useful

Turning Bluetooth on/off easily on your Windows Mobile phone

Sebastiaan — Thu, 22 Oct 2009 08:55:34 +0000

Hi all,

I’ve recently had a BT carkit installed in my car and my Windows Mobile HTC Touch Cruise phone interfaces with it easily.
But BT consumes a lot of energy, so I started searching for a suitable tool to map hardware buttons to various functions.

I first stumbled upon AEButton, but that isn’t freeware.
The free “HButton” software does the trick just as well though.

HButton enables you to even map multiple applications/commands to a single hardware button.

Website: http://hbutton.dyndns.org/

I hope you like it just as much as I do, VERY handy to turn BT off with a single button press.

Over & Out

LoQutus: my future

Sebastiaan — Fri, 11 Sep 2009 09:26:38 +0000

Hi all,

I’ve recently finished studying and I’ve joined LoQutus as a junior IT Consultant.

Just if you were wondering where the hell I am