LINQ Exchange

Today we’re going to cover an advanced scenario where we need to compare lists of a class we created. We’ll start with an implementation of EqualityComparer<T> which consists of overriding two methods: Equals and GetHashCode. What was a little tricky about this implementation is this subtle, but critical, comment in the code sample on MSDN [...]

Tags: enumerator, EqualityComparer, foreach, ienumerable, LINQ, linq c#, LINQ Except

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Objects that implement IDisposable are everywhere. The interface even gets its own language features (C#, VB, F#). However, LINQ throws a few wrenches into things: LINQ’s query syntax depends on expressions; using blocks are statements. When querying a sequence of IDisposable objects, there’s no easy way to ensure disposal after each element has been consumed. [...]

Tags: enumerator, expressions, ienumerable, linq to sql, using

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