Question

I have a Dictionary data type. My question is, is Dictionary.Keys.ToList()[i] always correspond to Dictionary.Values.ToList()[i] ? That is, will the following test always passes

public void DictionaryTest(int i, Dictionary<U,T> dict)
{
  var key = dict.Keys.ToList()[i];
  Assert.AreEqual(dict[key], dict.Values.ToList()[i]); 
}

Answer 1

Checking the MSDN entry for Dictionary.Keys Property:

The order of the keys in the Dictionary.KeyCollection is unspecified, but it is the same order as the associated values in the Dictionary.ValueCollection returned by the Values property.