Bug 24719 - DateTime2 not supported in SqlDbType > DbType
Summary: DateTime2 not supported in SqlDbType > DbType
Alias: None
Product: Class Libraries
Classification: Mono
Component: System.Data ()
Version: master
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2014-11-21 03:55 UTC by Håkan Edling
Modified: 2018-02-22 22:33 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Håkan Edling 2014-11-21 03:55:42 UTC
Conversion of DateTime2 in DbType > SqlDbType was fixed in latest commit on 2014-05-02, however when performing a query with Entity Framework with a DateTime in the query an exception is thrown at the following line:


The above method (SetSqlDbType) doesn't seem to support DateTime2.

Example Entity:

public class MyClass
  public Guid Id { get; set; }
  public string Name { get; set; }
  public DateTime Created { get; set; }

Example Query:

using (var db = new MyDbContext()) {
  var now = DateTime.Now;

  // This query will cause conversion from SqlDbType DateTime2 as Entity Framework handles
  // all DateTime objects as DateTime2 due to its precision.
  var classes = db.MyClasses.Where(c => c.Created <= now).ToList();

I am running Mono 3.10.0 (Updated 2014-11-21) & Xamarin Studio 5.5.4 (15)

Best regards
Comment 1 Marek Safar 2018-02-22 22:33:41 UTC
Mono 5.10 has significantly improved System.Data implementation which should resolve this issue. If you can still reproduce it please reopen the issue.