I have the following code in my HomeController:
public ActionResult Edit(int id)
{
var ArticleToEdit = (from m in _db.ArticleSet where m.storyId == id se
The model should have nullable datetime. The earlier suggested method of retrieving the object that has to be modified should be used instead of the ApplyPropertyChanges. In my case I had this method to Save my object:
public ActionResult Save(QCFeedbackViewModel item)
And then in service, I retrieve using:
RETURNED = item.RETURNED.HasValue ? Convert.ToDateTime(item.RETURNED) : (DateTime?)null
The full code of service is as below:
var add = new QC_LOG_FEEDBACK()
{
QCLOG_ID = item.QCLOG_ID,
PRE_QC_FEEDBACK = item.PRE_QC_FEEDBACK,
RETURNED = item.RETURNED.HasValue ? Convert.ToDateTime(item.RETURNED) : (DateTime?)null,
PRE_QC_RETURN = item.PRE_QC_RETURN.HasValue ? Convert.ToDateTime(item.PRE_QC_RETURN) : (DateTime?)null,
FEEDBACK_APPROVED = item.FEEDBACK_APPROVED,
QC_COMMENTS = item.QC_COMMENTS,
FEEDBACK = item.FEEDBACK
};
_context.QC_LOG_FEEDBACK.Add(add);
_context.SaveChanges();
This one was driving me crazy. I wanted to avoid using a nullable date time (DateTime?
). I didn't have the option of using SQL 2008's datetime2 type either (modelBuilder.Entity<MyEntity>().Property(e => e.MyDateColumn).HasColumnType("datetime2");
).
I eventually opted for the following:
public class MyDb : DbContext
{
public override int SaveChanges()
{
UpdateDates();
return base.SaveChanges();
}
private void UpdateDates()
{
foreach (var change in ChangeTracker.Entries<MyEntityBaseClass>())
{
var values = change.CurrentValues;
foreach (var name in values.PropertyNames)
{
var value = values[name];
if (value is DateTime)
{
var date = (DateTime)value;
if (date < SqlDateTime.MinValue.Value)
{
values[name] = SqlDateTime.MinValue.Value;
}
else if (date > SqlDateTime.MaxValue.Value)
{
values[name] = SqlDateTime.MaxValue.Value;
}
}
}
}
}
}
Error: The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value.
This error occurred when due to NOT assigning any value against a NOT NULL date column in SQL DB using EF and was resolved by assigning the same.
Hope this helps!
you have to match the input format of your date field to the required entity format which is yyyy/mm/dd
If you have a column that is datetime and allows null you will get this error. I recommend setting a value to pass to the object before .SaveChanges();