using a for loop to iterate through a dictionary

Question

I generally use a foreach loop to iterate through Dictionary.

Dictionary dictSummary = new Dictionary();
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Answer 1

You don't need to use .ToArray() or .ElementAt(). It is as simple as accessing the dictionary with the key:

dictSummary.Keys.ToList().ForEach(k => dictSummary[k] = dictSummary[k].Trim());