Question

I’m developping an app in c#, and I was targeting net framework 4.0. On the proprieties window of my solution, I changed the target framework to NET Framework 2.0, but the app suddenly stopped working. It shows me the following error :

No overload for method ToString() takes 1 argument

The code that is causing the error :

  DateTime endTime;
  string endDate = get_end_date_fromDB();

  if (DateTime.TryParseExact(endDate, "dddd, MMMM dd, yyyy", null, DateTimeStyles.None, out endTime))
        {

            TimeSpan ts = endTime.Subtract(DateTime.Now);

            label1.Text = ts.ToString("d' Jours 'h' Heures 'm' Minutes'"); // <<<< THIS LINE IS CAUSING THE ERROR

        }

Is there a workaround to make the code above work on C# 2.0? I need to show the date in a specific format.

Answer 1

Older implementation does not have ToString override with format parameter.

label1.Text = string.Format("{0}' Jours '{1}' Heures '{2}' Minutes'", 
                                   ts.Days, ts.Hours, ts.Minutes);

You can find .NET version specific documentation on MSDN by choosing version of interest in “other versions” combobox.