I try to set field in template of type "Date" programmatically,
string postedValue = GetValue(formSubmitContext.Fields.FirstOrDefault(f => f.Name.Equals(fieldName)));
DateField dateField = newItem.Fields[fieldName];
var ss = Sitecore.DateUtil.ToIsoDate(DateTime.Parse(postedValue));
dateField.Value = ss;
When I debug the field is set with ISO value but in Sitecore the field is empty. any idea ??