What's the best way to set all values in a C# Dictionary<string,bool>?

Question

What's the best way to set all values in a C# Dictionary?

Here is what I am doing now, but I'm sure there is a better/cleaner way to do this:

Dictionary<string,bool> dict = GetDictionary(); var keys = dict.Keys.ToList(); for (int i = 0; i < keys.Count; i++) {     dict[keys[i]] = false; } 

I have tried some other ways with foreach, but I had errors.

Answer 1

That is a reasonable approach, although I would prefer:

foreach (var key in dict.Keys.ToList()) {     dict[key] = false; } 

The call to ToList() makes this work, since it's pulling out and (temporarily) saving the list of keys, so the iteration works.

Answer 2

A one-line solution:

dict = dict.ToDictionary(p => p.Key, p => false);