static public Result Run(Window parent)
		{
			var dialog = new ConvertBaseDialog { Owner = parent };
			return dialog.ShowDialog() ? dialog.result : null;
		}
		void Command_Numeric_ConvertBase(ConvertBaseDialog.Result result) => ReplaceSelections(GetSelectionStrings().Select(str => ConvertBase(str, result.InputSet, result.OutputSet)).ToList());