public FormAgregarReserva()
        {
            InitializeComponent();
            datePickerReserva.Format       = DateTimePickerFormat.Custom;
            datePickerReserva.CustomFormat = "yyyy-MM-dd";
            datePickerIngreso.Format       = DateTimePickerFormat.Custom;
            datePickerIngreso.CustomFormat = "yyyy-MM-dd";
            datePickerSalida.Format        = DateTimePickerFormat.Custom;
            datePickerSalida.CustomFormat  = "yyyy-MM-dd";
            cboboxCliente.DataSource       = ClienteDAL.TraerClientes();
            cboboxCliente.DisplayMember    = "Cliente";
            cboboxCliente.ValueMember      = "id";

            cboboxFormaPago.DataSource    = ReservaDAL.TraerFormasDePago();
            cboboxFormaPago.DisplayMember = "tipo_de_pago";
            cboboxFormaPago.ValueMember   = "id";
        }