private void listTeamSponsorships_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            TeamSponsorship secilen = new TeamSponsorship();

            secilen          = (TeamSponsorship)listTeamSponsorships.SelectedItem;
            grd1.DataContext = secilen;
        }
 public void allTeamSponsorships()
 {
     teamSponsorships    = new ObservableCollection <TeamSponsorship>();
     command             = new SqlCommand();
     command.Connection  = connection;
     command.CommandText = "SELECT Sponsor.sponsorName, Sponsor.sponsorID, TeamSponsorship.sponsorshipContractPeriod, TeamSponsorship.sponsorshipPayment, Team.teamName, Team.teamID " +
                           "FROM TeamSponsorship INNER JOIN  Sponsor ON TeamSponsorship.sponsorID = Sponsor.sponsorID " +
                           "INNER JOIN  Team ON TeamSponsorship.teamID = Team.teamID ORDER BY Sponsor.sponsorID ASC";
     connection.Open();
     reader = command.ExecuteReader();
     while (reader.Read())
     {
         teamSponsorship             = new TeamSponsorship();
         teamSponsorship.TeamID      = (int)reader["teamID"];
         teamSponsorship.TeamName    = (string)reader["teamName"];
         teamSponsorship.SponsorID   = (int)reader["sponsorID"];
         teamSponsorship.SponsorName = (string)reader["sponsorName"];
         teamSponsorship.SponsorshipContractPeriod = (int)reader["sponsorshipContractPeriod"];
         Console.WriteLine(teamSponsorship.SponsorshipContractPeriod);
         teamSponsorship.SponsorshipPayment = (int)reader["sponsorshipPayment"];
         teamSponsorships.Add(teamSponsorship);
     }
     connection.Close();
     listTeamSponsorships.ItemsSource = teamSponsorships;
 }