Initialize Dictionary<string,string> from List<string>

Easiest way to do this, perhaps from an extension method? :

var MyDic = new Dictionary<string,string>{ "key1", "val1", "key2", "val2", ...};

Where the dictionary winds up with entries contain key and value pairs from the simple list of strings, alternating every other string being the key and values.

Jon Skeet
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The alternation is a bit of a pain. Personally I'd just do it longhand:

var dictionary = new Dictionary<string, string>();
for (int index = 0; index < list.Count; index += 2)
{
    dictionary[list[index]] = list[index + 1];
}

You definitely can do it with LINQ, but it would be more complicated - I love using LINQ when it makes things simpler, but sometimes it's just not a great fit.

(Obviously you can wrap that up into an extension method.)

Note that you can use dictionary.Add(list[index], list[index + 1]) to throw an exception if there are duplicate keys - the above code will silently use the last occurrence of a particular key.

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