Does C# allow hashtables to be populated in one-line expressions? I am thinking of something equivalent to the below Python:
mydict = {"a": 23, "b": 45, "c": 67, "d": 89}
In other words, is there an alternative to setting each key-value pair in a separate expression?
C# 3 has a language extension called collection initializers which allow you to initialize the values of a collection in one statement.
Here is an example using a Dictionary<,>
:
using System; using System.Collections.Generic; class Program { static void Main() { var dict = new Dictionary<string, int> { {"a", 23}, {"b", 45}, {"c", 67}, {"d", 89} }; } }
This language extension is supported by the C# 3 compiler and any type that implements IEnumerable
and has a public Add
method.
If you are interested I would suggest you read this question I asked here on StackOverflow as to why the C# team implemented this language extension in such a curious manner (once you read the excellent answers to the question you will see that it makes a lot of sense).
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