private void Button_Click(object sender, RoutedEventArgs e)
 {
     try
     {
         if (Item == null)
         {
             DataAccess da = new DataAccess();
             bank_account ba = new bank_account();
             ba.account = da.GetAccount(AccountID);
             int BankID = (edtBank.SelectedItem as bank).id;
             ba.bank = da.BankGet(BankID);
             ba.BankAccount = edtAccountNumber.Text;
             ba.Description = edtDescription.Text;
             AccountID = da.BankAccountCreate(ba).id;
         }
         else
         {
             DataAccess da = new DataAccess();
             bank_account ba = da.bank_account_get(Item.id);
             int BankID = (edtBank.SelectedItem as bank).id;
             ba.bank = da.BankGet(BankID);
             ba.BankAccount = edtAccountNumber.Text;
             ba.Description = edtDescription.Text;
             da.BankAccountEdit(ba);
         }
     }
     catch (Exception)
     {
     }
     Close();
 }