70-483 Programming in C#

Last week I sat 70-483, Programming in C#. It was beta period so it was (at least supposed to be) free. The exam experience had a little glitch: I signed up in one test site (not my usual one, they were full). Luckily I had the extra precaution to call them before I’d go there (but after booking the exam). It turned out that even though I could book the exam online and they stated they had seats to that day (which was deadline of the beta period) nobody will be in the center because of summer vacations. So I had to pay an extra $25 as a transfer fee to be able to go to another test site.

OK, now about the exam: it was easy. And it was really about the C# language, not the .NET framework. So there were questions on syntax, too.

 I’m working with C# for four years now so there weren’t too many surprises so it took about an hour to finish the questions, review them and leave.  You can view the exam topics here.

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XsltListViewWebPart with custom XSL parameter

Recently I had the requirement in the title: we built a custom webpart based on the built-in XsltListViewWebPart. Microsoft wisely follows the best-practice pattern composition over inheritance, making the said webpart sealed (yes, it was sarcasm) so we generate one on the fly and we needed to pass some parameters to these generated XsltListViewWebParts and be able to access and work with these parameters in the XSL template.

The solution isn’t particularly hard but it took me a lot of googling, so I thought it might worth sharing it here. It has the following steps:

  1. Add your custom parameter to the XsltListViewWebPart’s ParameterBindings property.
  2. In the XSL file create an XSL parameter with the name of your custom parameter.
  3. Select the value of the XSL parameter in the XSL file to be able to work with it.

The first part was easy, especially with the help of Stefan Stanev’s post which covers the ParameterBindings property in great detail. There’s only one gotcha here: the type of the ParameterBindings property is string. I wasn’t become too depressed by this fact, simply concatenating your custom value will do the job:

myWebPart.ParameterBindings += @”<ParameterBinding Name=””myParameter”” DefaultValue=””Hello!”” />”;

 

The second part is easy too: just add an XSL parameter to your XSL file, like:

<xsl:param name=”myParameter” />

After you’ve done this, you’ll be able to access the value of the parameter (in our case, “Hello!”) using the following XSL query in your XSL file:

<xsl:value-of select=”$myParameter” />

Well, that’s all. Hope it helps someone out.