private void DeleteEntry()
 {
     if (System.Windows.MessageBox.Show("Are you sure you want to delete this Entry?", "Delete Entry?", MessageBoxButton.YesNo) == MessageBoxResult.Yes)
     {
         try
         {
             Queries2 query            = queries;
             string   tTimesheetPrelim = queries.t_Timesheet_Prelim;
             int?     entryId          = ((Entry)dgHours.SelectedItems[0]).entry_id;
             query.DeleteTimeEntry(tTimesheetPrelim, entryId.Value);
             RefreshDGHoursFromClassList();
         }
         catch
         {
         }
     }
 }