YouareimplementinganASP.NETpagethatincludesthefollowingdrop－downlist.Youneedtodynamicallyaddvaluestotheendofthedrop－downlist.Whatshouldyoudo?()A.AddthefollowingOnPreRendereventhandlertotheasp：DropDownListB.AddthefollowingOnPreRendereventhandlertotheasp：Dr
题目
YouareimplementinganASP.NETpagethatincludesthefollowingdrop－downlist.Youneedtodynamicallyaddvaluestotheendofthedrop－downlist.Whatshouldyoudo?()
A.AddthefollowingOnPreRendereventhandlertotheasp：DropDownList
B.AddthefollowingOnPreRendereventhandlertotheasp：DropDownList
C.Addthefollowingeventhandlertothepagecode-behind.
D.Addthefollowingeventhandlertothepagecode-behind.