Here's the snippet of code I'm using:
FieldValueCollection FVCNew = DI.GetFieldValues();
FVCNew.Add("Res/Ord Number", "Test");
DateTime Date = DateTime.Parse("01/01/1950");
FVCNew.Add("Date", Date);
DI.Lock(LockType.Exclusive);
DI.SetFieldValues(FVCNew);
DI.Save();
DI.Unlock();
Here on answers the recommendation is to use a DateTime object, which I am, but I don't get anything in the field. I don't get an error either.
The other field does update, so I do know I'm doing it correctly in general. I tried a string also but that did not work either. Any advice is appreciated.