This is my last post on this blog. My new blog is here: http://lucabolognese.wordpress.com/ I accepted a role as Director for Credit Suisse in London. I’m excited by the opportunity to work in the financial industry, a long-standing desire of mine. I’m also excited to write more F# code and to be closer...

In case you are training to play the part of a first generation Italian immigrant in a Broadway show or if you want to understand why I never short msft stock: http://microsoftpdc.com/Sessions/FT11

I’ll be in Los Angeles next week for PDC 2009. My session is called “ Future Directions for C# and Visual Basic ” and it comes on Tuesday immediately after the first keynote. I’m planning on spending the first half of the session talking about the biggest trends influencing C# and VB. The second part...

Or maybe not, please do not hold me responsible if you lose money following this system. Having said that, it is my opinion that there are very few concepts that are important in investing. Three big ones are value, diversification and momentum. This post is about the latter two and how to use C# to...

Go here to download them. It is in \ParallelExtensionsExtras\CoordinationDataStructures. It has a slightly different design in that it returns Tasks. I’m trying to get Stephen to blog about it so that you can compare them.

The title says it all. If you are interested, go here .

I’ll be speaking about the future of C# and F#. Oslo brings back so many memories …   “one of the world’s most important conferences for IT developers and leaders”

When I wrote my Excel financial library I agonized over the decision of which numeric type to use to represent money. Logic would push me toward decimal , but common usage among financial library writers would push me toward double . I ended up picking double, but I regret having to make that choice...

Today I released the following library on CodeGallery. It is the result of three months of coding during my paternity leave in Italy. You can get it from here . What is it? This is a .NET library that provides the full set of financial functions from Excel. The main goal for the library is compatibility...

Other posts in the series: Part I - Background Part II - Tuples Part III - Records Part IV - Type Unions Part V - The Match operator This is my last post of this series. It is about the match operator. To the untrained eyes this operator might look like a case statement. But they are...

Other posts in the series: Part I - Background Part II - Tuples Part III - Records Part IV - Type Unions Part V - The Match operator I'm sorry for my prolonged absence in the middle of this series of posts. I'm on a long paternity leave in Italy (playing beach volley every day). It...

Other posts in the series: Part I - Background Part II - Tuples Part III - Records Part IV - Type Unions Part V - The Match operator Now that we know what Tuples are, we can start talking about Record, as they use a derivative of Tuples under the cover. But first, what is a record?...

Other posts in the series: Part I - Background Part II - Tuples Part III - Records Part IV - Type Unions Part V - The Match operator Tuples are a way for you not to name things. In Object Oriented languages you got to name everything. If you need to represent a bunch of data, you create...

Other posts in the series: Part I - Background Part II - Tuples Part III - Records Part IV - Type Unions Part V - The Match operator In December (slow time in msft) I decided to understand what functional programming is all about. When I say 'understanding' I don't mean just paying...

This is my presentation from TechEd Barcelona: The link has been fixed. It should work now. Let me know if it doesn't. http://www.microsoft.com/emea/msdn/spotlight/sessionh.aspx?videoid=716 . The European locale brings out my Italian accent ... On this page there are a bunch of interesting presentations...

Other posts: Part I - Using a class Part II - Making the class better Part III - Using a struct Part IV - A class with a special value In the last post we presented a variation of implementing a value object using a class. Everything works (obviously), but the amount of code to write is...

Other posts: Part I - Using a class Part II - Making the class better Part III - Using a struct In the last post we looked at structs as ways to implement immutable value objects and we discovered that they have several issues. A good thing about the struct implementation was the introduction of an explicit...

Other posts: Part I - Using a class Part II - Making the class better Part IV - A class with a special value In Part II I talked about the asymmetry created by using 'null' as the special value for our little DateSpan domain. We also noticed the boredom of having to implement Equals, GetHashCode...

Here is a quick implementation of XIRR (using Excel nomenclature) written in C#. Disclaimer : this is a super simple Bisection-based implementation. People tend to prefer the Newton method, but this is simpler and works for the app I'm writing. I decided to post it because I couldn't find one on the...

Other posts: Part I - Using a class Part III - Using a struct Part IV - A class with a special value In the previous post I showed how to trivially implement a value object. The code works but it has several issues. Some are very simple, others are more interesting. Let's take a look...

Other posts: Part II - Making the class better Part III - Using a struct Part IV - A class with a special value Value objects are objects for which the identity is based on their state instead of their pointer in memory. For example, a numeric Complex class is, most of the time, a value...

This is Luke 's kind of code. I might be catching the virus ... abstract class QIFParserBase { public enum LoadOptions { All, Prices, Securities, Transactions } static readonly Dictionary < LoadOptions , Action < QIFParserBase , string []>> parseFuncs = new Dictionary...

I'm slightly prouder of the structure of this code than the one in the previous blog post . You can simply inherit from QIFParserBase and override a couple of abstract methods to customize the behavior. Still, I just tested it on a couple of test QIF files. It is not production quality at all. Notice...

I wrote this code very quickly and I'm kind of ashamed of it, but it gets the job done (I think). You need the HTML Agility Pack for the stock splits retrieving code. You can download it from here or you can simply comment out the code. I wrote it against Visual Studio 2008 beta 2 , but it should be...

And a bit of history of O/R in Microsoft at the end: http://blogs.msdn.com/charlie/archive/2007/08/06/linq-to-sql-pipeline-video-with-luca-bolognese-and-matt-warren.aspx