public class PresentationObject
private BLL.BusinessObject bobj = new BLL.BusinessObject();
protected void ddl_Customers_SelectedIndexChanged(object sender, System.EventArgs e)
string selectedValue = "Some String";
var collection = new DLL.collection();
collection.SupportRef1 = selectedValue;
var result = bobj.returnTicket(collection);
public class BusinessObject
public string returnTicket(DLL.collection b)
public string SupportRef1 { get; set; }