在WCF服务中使用Web引用而不是在使用服务引用时重置Datetime值

Question

I have a WCF Service with operation as follow:

    public void setNotifications(List<AnnouncementDataContract> announcements)
    {
        foreach(AnnouncementDataContract item in announcements)
        {
            ent.InsertAnnouncements(item.Anc_Text, item.Anc_Date);
        }
    }

When I add this WCF service as a webreference in my MVC application and calls the method as follow:

       MyService.Service1 proxy = new MyService.Service1();
       Collection<MyService.AnnouncementDataContract> dc = new 
                              Collection<MyService.AnnouncementDataContract>();
        MyService.AnnouncementDataContract dc1 = new              
        MyService.AnnouncementDataContract();
        dc1.anc_Date = System.DateTime.Now;
        dc1.anc_Text = "Announcement1";
        dc.Add(dc1);
        proxy.setNotifications(dc.ToArray());

The value in each item for "announcements" at the service operation is reset and i get it as min datetime value not the one i have sent from my MVC application on calling the operation.

But when I add this WCF service as a service reference in my MVC application and calls the operation, it works fine and the correct value of datetime is obtained at service.

Answer 1

I just had the same problem. It is because the generated proxy code for your AnnouncementDataContract class also creates a property called Anc_DateSpecified, which has to be set to true. This is the case for all value types.