The C#.Net code below works:

private void pckCustomer_ItemSelected(object sender, mmPickerItemSelectedEventArgs e)
{
   this.oOrder.GetOrdersByCustomerID("Select Orders.OrderID, Orders.OrderDate, Orders.RequiredDate, Orders.ShippedDate, Orders.ShipName, Customers.ContactName From Orders, Customers Where Orders.CustomerID = Customers.CustomerID And Orders.CustomerID Like '%"+this.pckCustomer.Text+"%'", 1 );
}

But if the code is put in multiple lines like below, it gives me an error:

private void pckCustomer_ItemSelected(object sender, mmPickerItemSelectedEventArgs e)
{
    this.oOrder.GetOrdersByCustomerID("Select Orders.OrderID, 
        Orders.OrderDate, Orders.RequiredDate,  
        Orders.ShippedDate, Orders.ShipName, 
        Customers.ContactName From Orders, Customers
        Where Orders.CustomerID = Customers.CustomerID And
        Orders.CustomerID Like '%"+this.pckCustomer.Text+"%'", 1 );
}

What's wrong here? It seems that it does not recognize multiple lines...