Question

I need to construct linq, but day (date time type, i.AllowedTime.AllowedDate.Day), hours and minutes (int type) stores differently. I try to make it:

        DateTime date = DateTime.Now.Date;
        IQueryable<ITW2012Mobile.Core.DataTable.MeetingModel2> result = null;
        if (status == MeetingStatus.RequestedOfYou)
        {

            result = from i in _dbContext.Meetings
                     where i.UserInvitedID == CurrentUserID && i.MeetingStatus == null && EntityFunctions.TruncateTime(i.AllowedTime.AllowedDate.Day) >= date
                     select new ITW2012Mobile.Core.DataTable.MeetingModel2()
                     {
                         Name = i.UserInviter.FirstName + " " + i.UserInviter.LastName,
                         Company = i.UserInviter.Company,
                         MeetingID = i.MeetingID,
                         Time = EntityFunctions.AddMinutes(EntityFunctions.AddHours(i.AllowedTime.AllowedDate.Day, i.AllowedTime.Hour).Value, i.AllowedTime.Minute).Value,
                         Image = i.UserInviter.ProfileImage,
                         Username = i.UserInviter.aspnet_User.UserName
                     };
        }

but got an exception :

{“The datepart hour is not supported by date function dateadd for data
type date.”}

how to do it?

ADDED class MeetingModel2

public class MeetingModel2
{
    public int MeetingID { get; set; }
    public string Name { get; set; }
    public string Company { get; set; }
    public DateTime Time { get; set; }
    public string Image { get; set; }
    public string Username { get; set; }
}

Answer 1

The field “Time” in the database you’re querying is likely a Date data type. You cannot perform time operations like adding minutes or hours to a Date type. If you changed that field to be a DateTime you’d probably be okay.