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Asked: 2026-06-08T18:30:52+00:00

I can’t figure out the syntax to do inline collection initialization for: var a

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I can’t figure out the syntax to do inline collection initialization for:

var a = new List<KeyValuePair<string, string>>();
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1 Answer

  1. Editorial Team

    Pretty straightforward:

    var a = new List<KeyValuePair<string, string>>()
{
    new KeyValuePair<string, string>("A","B"),
    new KeyValuePair<string, string>("A","B"),
    new KeyValuePair<string, string>("A","B"),
};

    Note that you can leave the trailing comma after the last element (probably because .net creators wanted to make automatic code-generation easier), or remove the () brackets of the list contructor and the code still compiles.

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