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This is somewhat of a follow up on a previous post I did on the difference between IEnumerable(Of T) and the IEnumerable interfaces. I've seen several people type in the following code and wonder if there was a fundamental bug in the type inference code.
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Orcas has shipped :) http://msdn2.microsoft.com/en-us/vstudio/default.aspx
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One item you strive to avoid when you design and implement a feature is unexpected behavior. Unfortunately there is one case we couldn't avoid with Lambda's in VB9. I just ran into the this problem when coding up a handler. I wanted
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For a time I've been avoiding extension methods. Not because I'm opposed to using them but because of the 3.5 Framework. A lot of the tools I own are designed to be very light weight tools that only require the user to have 2.0 installed on their machine.
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Quite awhile back I posted about how to create a re-usable singleton pattern in .Net. Link is here . A bit of time has passed and I've altered the pattern a bit. The reasons for the change are some new type inference patterns and FxCop cleanliness. The
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While playing around with a batch of Orcas code recently I found a welcome change to the C# type inference rules for Orcas. The return type of a generic delegate can now be inferred from the actual return values. Here is some sample code demonstrating
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For previous articles in this series please see ... Part 1: Introduction Part 2: Method Calls Part 3: Scope Part 4: Variable Lifetime Part 5: Looping As powerful as closures are in the language they do have a few limitations. We worked hard in Orcas to
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The new version of the Visual Studio 2008 Beta2 SDK was just released. Among the many new samples is a basic expression evaluator sample. This sample shows you how to add basic debugger support to a managed language in Visual Studio. This is the first
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Question: How can you create a variable in VB which is typed as an anonymous type but not actually create an instance of that type? Answer in comments. Note, doing this is not particularly useful it came about while I was playing around with a feature
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For previous articles in the series please see Part 1: Introduction Part 2: Method Calls Part 3: Scope Part 4: Variable Lifetime Once again sorry for the long delay between posts. Looping structures can cause unintended consequences when used with Lambda
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For previous articles in this series please see Part 1: Introduction Part 2: Method Calls Part 3: Scope Sorry for the long delay between posts here. We're getting Orcas out the door and getting this series completed takes a back door to shipping. Originally
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For previous articles in this series please see Part 1: Introduction Part 2: Method Calls Thus far in the series we've only lifted variables that are declared in the same block/scope. What happens if we lift variables in different scope? The answer is
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For previous articles in this series, please see Part 1 - The basics This part of the series will focus on how method calls are handled in closures. As stated in the previous article, the purpose of closures is to allow all operations inside a lambda
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One of the features I implemented for VB 9.0 is lexical closure support. This a great addition to the VB language and I wanted to do a series of blog posts to describe this feature and how it will impact your code. Lexical Closures (more often referred
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