How to bind Choice field Column with DropDownList in SharePoint

Bind Choice field Column with DropDownList in SharePoint.

There are few steps required to bind Choice field column with dropdownlist.The code is under here:

Guid siteId = SPContext.Current.Site.ID;
             SPSecurity.RunWithElevatedPrivileges(delegate()
             {
 
                 using (SPSite site = new SPSite(siteId))
                 {
                     using (SPWeb objSPWeb = site.RootWeb)
                     {
SPList objSPList = objSPWeb.Lists["ListName"];
 
SPFieldChoice field = (SPFieldChoice)objSPList.Fields["Column Name"];
                         DropDownList1.DataSource = field.Choices;
                         DropDownList1.DataBind();
                     }
                 }
             });