We have a very cool report we run every week over the entire .NET Framework that shows which members were obsoleted. As I was reviewing that list, I thought that this would be great information to get out to customers right away. After all if you are...

We got some great feedback from this entry on DateTime. The dev lead for the BCL took time to post to my comments, but I thought I’d put them into the mainfeed as I think they are generally interesting. I am a colleague of Brad's and I'm the...

While we are on the subject on interop , I noticed that Sonja Keserovic ( PDC talk) will be heading to the WinDays conference on the Adriatic coast! If you are in the area, it is totally worth checking out her talk. She may even do it in Croatian....

Adam Nathan spent sometime over the weekend putting up this little site pinvoke.net . It is a very cool Wiki for Win32 PInvoke signatures… I can’t wait to see what the community does with this! Cool -- Charlie Kindel picked it up as...

Awhile back I got a Rio Cali MP3 player , overall I really like it… the controls are nice, the built in FM radio is great… But there is one problem… No support from audible.com . In an attempt to keep control over the media, audible...

There was a thread recently over the CLR perf alias that I thought I’d share. One of the WinFX developers asks if there is any perf differences between these two classes: public class Foo1 { public static int Value = 42; } ...

If so you should check out this KB- Information about designing Office XP add-ins and Office 2003 add-ins by using the .NET Framework . The CLR interop team, office folks and others I am sure worked closely to get this information together… Hope...

I am a little surprised we don’t get this question more often given the java story around buffered IO… but it came up today on an internal perf alias: Question: Is there any benefit in using a BufferedStream class over a FileStream...

The SLAR on System.Array Continuing in the series on sharing some of the information in the .NET Framework Standard Library Annotated Reference Vol 1 here are some of the annotations and a sample on the System.List class. BA Notice that we used...

This is hilarious , even more so because most of them seem real. Signs of the Times presentation is a 29 slide collection of confusing signs sent in by people just like you. Be careful out there! [via This Is Broken ]

This came up on an internal alias recently…. Nothing earth shattering here, but I figured it might help someone googling for an answer someday… Hey, if it did, drop me a comment and let me know about it… Question: I just want...

There was a recent question over an internal alias the clarify the struct usage guidelines and I thought you’d find that data helpful…. The API designer was confused about what 2 and 4 really mean. 1. Act like primitive types 2. Have...

A reader asks: We have an issue with the DateTime data type using serialization across timezones. All works well where we are interested in both the date and time. However, when the Date portion is of interest only, for example Birthday, (not many...

About two weeks ago I did another session of my two day class on designing .NET Class Libraries for internal folks mostly building WinFX and similar frameworks. You can find notes from past sessions here , here , here , here , here , and here . The two...

I just got this months issue of Dr. Dobbs and I notice that Steven Clarke has got a great article on Measuring API Usability . Unfortunately, it does not appear to be available electronically. I will post a link if I can find one, but the good news is...

We have a once in a decade opportunity with WinFX to build the platform that applications for the next 10+ years will be built on. We have tons of things we need to get right the first time with WinFX. The CLR team looking for someone with 5+ years experience...

I thought I’d share a bit of this thread we are having now over a large internal alias… As always your comments welcome: Questions: I have an interface (IFooExtension) which has shipped. This interface is public, documented and used...

I just got a mail sent the entire Developer Division team listing this site as a great place to look for feedback and feature requests… Philip tells you all about it … so if you installed the Whidbey Community Drop let us know what you think...

WER is Windows Error Reporting… it is what we internally affectionately call “Watson”. You know that cool little dialog that comes up when an app crashes that asks you to send the report to Microsoft. Well, as an ISV, you can actually...

On the internal FxCop support alias someone asked about the background on the rule that mutable reference types should not be read-only fields… One of the more astute members of the alias was able to quote chapter and verse of the Design Guidelines...

An old college friend of mine found my blog recently and was even full of “tips” for me as well... thanks Jason, some things never change! I found a way to fix this that typo…;-) That is right folks, Jason and I both went to North...

A while back someone asked about getting the Table of Contents for my .NET Framework Standard Library Annotated Reference Vol 1 book. Well, I finally got it posted. As always love to hear your feedback. http://gotdotnet.com/team/brada/toc%20from%20stdlibrefvol1...

One of the devs on the BCL team created this cool little sample while investigation a Whidbey bug and I thought I’d share it with you… C:\code >mount a: c:\MountPoint Managed Unix-style mount program Mounting volume a:\ at c...

To continue sharing some of the color found in the .NET Framework Standard Library Annotated Reference Vol 1 , here is some information from the ArgumentNullException class. public class ArgumentNullException : ArgumentException { // Constructors...

One of the things that I think is so cool about the CLR is the fact that it is multi-language… The first commercially successful multi-language runtime environment. One of the things that I think is neat about that is we have to potential to survive...