根据repeater 里 的数据ID, 绑定 repeater 里的dropdownlist

 rpCompeteCompanys.DataSource = CompeteCompanyBLL.GetCompeteCompanyList(LinkManPageBar.PageSize, e.PageIndex, "CompanyID IN (" + customerModel.CompanyId + ")", "CompanyID DESC");
                    rpCompeteCompanys.DataBind();
                    //绑定地址下拉列表
                    foreach (RepeaterItem item in rpCompeteCompanys.Items)
                    {
                        HiddenField hidCompanyID = item.FindControl("hidCompanyID") as HiddenField;
                        DropDownList ddlCompCompanyAddresss = item.FindControl("ddlCompCompanyAddresss") as DropDownList;
                        if (!String.IsNullOrEmpty(hidCompanyID.Value))
                        {
                            IList<CompCompanyAddressInfo> compCompanyAddressList = CompCompanyAddressBLL.GetCompCompanyAddressList(int.Parse(hidCompanyID.Value));

                            ddlCompCompanyAddresss.DataSource = compCompanyAddressList;
                            ddlCompCompanyAddresss.DataTextField = "AddressDetails";
                            ddlCompCompanyAddresss.DataValueField = "AddressId";
                            ddlCompCompanyAddresss.DataBind();
                        }
                    }