How do I declare a TDictionary enumerator?

Answer 1

This works just as expected:

var
  Enum: TPair<string, TForm>;
  MyDict: TDictionary<string, TForm>;
begin
  MyDict := TDictionary<string, TForm>.Create;
  try
    MyDict.Add('Form1', Self);
    for Enum in MyDict do
      ShowMessage(Enum.Key);
  finally
    MyDict.Free;
  end;

Paste this code in the FormCreate event of any form and see for yourself.