private void confirmButton_Click(object sender, EventArgs e)
{
controller = new ExpenseModule(Util.CONNECTION_DETAILS.CONNECITION_STRING, "");
controller.confirmPayment(this.expenseTransaction, this.expense);
controller = new MainScreenController(Util.CONNECTION_DETAILS.CONNECITION_STRING, "");
controller.updateBalance(this.expense.GetExpenseDetails().getApartment(), this.mainView);
this.Dispose();
}