The conversion of a datetime2 data type to a datetime data type Error
asp.net-mvc c# datetime entity-framework
Question
I have a controller:
[HttpPost]
public ActionResult Create(Auction auction)
{
var db = new EbuyDataContext();
db.Auctions.Add(auction);
db.SaveChanges();
return View(auction);
}
A model:
public class Auction
{
public long Id { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public decimal StartPrice { get; set; }
public decimal CurrentPrice { get; set; }
public DateTime StartTime { get; set; }
public DateTime EndTime { get; set; }}
}
And a view:
@model Ebuy.Website.Models.Auction
@using (Html.BeginForm())
{
<p>
//All the information fields...
@Html.LabelFor(model => model.EndTime)
@Html.EditorFor(model => model.EndTime)
</p>
}
When I try to run it I receive the error:
The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value.
The model-controller-view is from a book copied one-to-one.
What is the format that I need to enter to the EndTime field so I won't have this error?
Accepted Answer
The error is because you haven't actually set those values correctly, make sure you set them depending on your applications locale. (e.g. dd/mm/yyyy for en-GB, mm/dd/yyyy for en-US).
It also looks like your database has been set up to use a datetime2 column and not a datetime column.
You can either:
A) Modify the database to change the type from datetime2 to datetime
B) Change the types in your Model to be datetime2, by doing:
[Column(TypeName = "DateTime2")]
public DateTime StartTime { get; set; }
[Column(TypeName = "DateTime2")]
public DateTime EndTime { get; set; }
Popular Answer
I had the same problem when I tried to save an unassigened DateTime member to the DB, while using EntityFramework. I read the answers here, and I learned that it can be solved by declaring the member as nullable. I tried it, and it worked! So here is a code snap, for those who need it:
public Nullable<DateTime> MyDateTime { get; set; }
or
public DateTime? MyDateTime { get; set; }
Later I could use it like bellow:
if(MyDateTime.HasValue)
{
DoBlaBla(MyDateTime.Value);
}
or just assign a value to it like nothing had happen...
MyDateTime = DateTime.Now;
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