Add record Deconstruct section #23429
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IEvangelist
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Mar 22, 2021
docs/csharp/deconstruct.md
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| ## Deconstructing user-defined types | ||
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| C# does not offer built-in support for deconstructing non-tuple types. However, as the author of a class, a struct, or an interface, you can allow instances of the type to be deconstructed by implementing one or more `Deconstruct` methods. The method returns void, and each value to be deconstructed is indicated by an [out](language-reference/keywords/out-parameter-modifier.md) parameter in the method signature. For example, the following `Deconstruct` method of a `Person` class returns the first, middle, and last name: | ||
| C# does not offer built-in support for deconstructing non-tuple types other than [`record` types](#deconstructing-a-record-type). However, as the author of a class, a struct, or an interface, you can allow instances of the type to be deconstructed by implementing one or more `Deconstruct` methods. The method returns void, and each value to be deconstructed is indicated by an [out](language-reference/keywords/out-parameter-modifier.md) parameter in the method signature. For example, the following `Deconstruct` method of a `Person` class returns the first, middle, and last name: |
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There another built-in support and it's the KeyValuePair<TKey, TValue>:
foreach (var (key, value) in new Dictionary<int, string>
{
[1] = "One", [2] = "Two", [3] = "Three"
})
{
Console.WriteLine($"{key} = {value}");
}I knew about the KVP, but did a quick search for other options.
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Good catch, thanks!
tdykstra
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Mar 22, 2021
tdykstra
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Mar 22, 2021
tdykstra
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Mar 22, 2021
IEvangelist
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Looks good to me, 
when you're ready.
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Fixes #22583