private void Nou_gaetkinlik_Click(object sender, RoutedEventArgs e)
        {
            panel p_ = new panel();

            p_.Show();
            //this.Close();
        }
 private void adminGiris(object sender, RoutedEventArgs e)
 {
     try
     {
         if (ds.sqlCon.State == ConnectionState.Closed)
         {
             ds.sqlCon.Open();
         }
         string     sorgu  = "SELECT COUNT(1) FROM tblAdmin WHERE kulad=@kulad AND parola=@parola";
         SqlCommand sqlCmd = new SqlCommand(sorgu, ds.sqlCon);
         sqlCmd.CommandType = CommandType.Text;
         sqlCmd.Parameters.AddWithValue("@kulad", txt_kulad.Text);
         sqlCmd.Parameters.AddWithValue("@parola", txt_parola.Password);
         int count = Convert.ToInt32(sqlCmd.ExecuteScalar());
         if (count == 1)
         {
             MessageBox.Show("Giriş Başarılı");
             panel panel_ = new panel();
             panel_.Show();
             this.Close();
         }
         else
         {
             MessageBox.Show("Kullanıcı adı veya parola hatalı!\n Kalan deneme hakkı " + hak);
             if (hak == 0)
             {
                 an.anaadmin.IsEnabled = false;
                 an.Show();
                 this.Close();
             }
             hak--;
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
     finally
     {
         ds.sqlCon.Close();
     }
 }