public void DDL_PersonName()
    {
        JSJXXKDBDataContext lqDB = new JSJXXKDBDataContext(ConfigurationManager.ConnectionStrings["JSJXXZX_DBConnectionString"].ConnectionString.ToString());
        var result = from per in lqDB.a_employee_mi
                     where per.deleted_flag == '0'
                     select new
                     {
                         name = per.name
                     };
DropDownList1  //在这里，调不出DropDownList1　，
        
    }

                <asp:TemplateField HeaderText="选吧">
                <ItemTemplate>
                    <asp:DropDownList ID="DropDownList1" runat="server"　DataSource='<%#DDL_PersonName()%>'> // 不好用
                     
                    </asp:DropDownList>
                </ItemTemplate>
                </asp:TemplateField>

var hospitals = from h in db.B_Hospital
                                where h.IsDel == 1
                                orderby h.HospitalName
                                select h;
 ddlHospital.DataSource = hospitals;
                ddlHospital.DataTextField = "HospitalName";
                ddlHospital.DataValueField = "ID";
                ddlHospital.DataBind();