List Feild values geting in DropdownList

using (SPSite osite = SPContext.Current.Site)  

    

            {  

    

                using (SPWeb oweb = osite.OpenWeb())  

    

                {  

    

                    SPList objList = oweb.Lists["BannerTest"];  

    

                    SPFieldCollection objSPFCollection = objList.Fields;  

    

                    ListItemCollection objListColumnNames = new ListItemCollection();  

    

                    if (objSPFCollection.Count != 0)  

                    {  

    

                        foreach (SPField field in objSPFCollection)  

    

                        {  

    

                            objListColumnNames.Add(new ListItem(field.Title));  

    

                        }  

    

                    }  

    

                    drpTest.DataSource = objListColumnNames;  

    

                    drpTest.DataBind();  

    

                }  

    

            }