How do you get the index of the current iteration of a foreach loop?

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刺人心 2020-11-22 07:05

Is there some rare language construct I haven\'t encountered (like the few I\'ve learned recently, some on Stack Overflow) in C# to get a value representing the current iter

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半阙折子戏 (楼主)

2020-11-22 07:19

Literal Answer -- warning, performance may not be as good as just using an int to track the index. At least it is better than using IndexOf.

You just need to use the indexing overload of Select to wrap each item in the collection with an anonymous object that knows the index. This can be done against anything that implements IEnumerable.

System.Collections.IEnumerable collection = Enumerable.Range(100, 10);

foreach (var o in collection.OfType