Jennifer Marsman

Windows Development

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  • Blog Post: What is the difference between var and dynamic in C#?

    Many people have expressed confusion around the difference between var and dynamic in C#.  For both of them, the type is inferred rather than explicitly declared.  dynamic test = 1; var test2 = 2; If I hover my mouse over the “var” in the code above, IntelliSense will show me that...
  • Blog Post: "More Effective C#" Book Signing in Ann Arbor

    This week, Bill Wagner will release his second book, More Effective C# .  (Can you guess what his first book was called?)  The editorial reviews on Amazon are extremely impressive: members of the Visual C# product team and Microsoft MVPs praise Bill's latest work.  Bill is speaking at...
  • Blog Post: Are two billion integers actually created in memory?

    I received the following question regarding my previous C# post : In your example, you say "First of all, the Enumerable.Range method will produce a sequence of integers, from 0 to 2,147,483,647."  Are 2 billion integers actually created in memory? My fear about LINQ has always been around...
  • Blog Post: C# Fun at AADND - A Closer Look at the Where Extension Method and Lambda Expressions

    Last week at the Ann Arbor Dot Net Developers group (AADND), Bill Wagner gave a talk entitled "After the Launch: C# 3.0".  He discussed: Implicit properties Extension methods Enumerators and deferred vs. immediate execution Lambda expressions Sequence operators   One of the questions...
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