[SharePoint 2010 – Error Fixing] SPException invalid date/time (Erreur : Valeur de date/d’heure non valide. Un champ de date/d’heure contient des données non valides. Vérifiez la valeur, puis réessayez)

What did i try to do ?

I’m creating SPListItem Programmatically (create elements in a list) and when the item.update(); is called by the code, the following error is thrown :
“Erreur : Valeur de date/d’heure non valide.Un champ de date/d’heure contient des données non valides. Vérifiez la valeur, puis réessayez”
or in english :
“SPException : invalid date/time…”

What could be the problem ?

1. The date format is not correct
2. The date is not correct (minimum date for SharePoint ?)

Solving the problem

I’m giving an example of an incorrect date value “01/01/0001 00:00:00” :

   1: SPList list = web.Lists["myList"];

   2:  

   3: SPListItem item;

   4: string date = "01/01/0001 00:00:00";

   5:  

   6: item = list.Items.Add();

   7:  

   8: item["currentDate"] = date;

   9: if (DateTime.TryParse(row["currentDate"].ToString(), out dateTime) == true)

  10: {

  11:     //si la date est définit

  12:     if (dateTime.ToString() != "01/01/0001 00:00:00")

  13:     {

  14:         item["currentDate"] = SPUtility.CreateISO8601DateTimeFromSystemDateTime(DateTime.Parse(date));

  15:     }

  16: }

  17:  

  18: item.update();

  19: list.update();

01/01/2001 is an incorrect value for a date in sharepoint.

And we check the date in order to respect sharepoint dates rules, using the method : CreateISO8601DateTimeFromSystemDateTime.

Have you ever had other issue with dates and SPListItem ?