GridView: Getting access to it's datasource properties via DataKeyNames

Client:

<asp:GridView ID="followUpAppointments" CssClass="Report" runat="server" AutoGenerateColumns="false" Width="270"  AllowPaging="false" AlternatingRowStyle-CssClass="DataAlternateRow" CellPadding="1" CellSpacing="1" HeaderStyle-HorizontalAlign="Center" EmptyDataText="No Results."             DataKeyNames="Id,Name,Description,FollowUpList" >

                <Columns>

                    <asp:TemplateField ItemStyle-Width="10">

                        <ItemTemplate>

                            <center>

                                <asp:CheckBox ID="selectedRowCb" runat="server" />

                            </center>

                        </ItemTemplate>

                    </asp:TemplateField>

                    <asp:BoundField DataField="Name" HeaderText="Follow Up Appointments" ItemStyle-Width="250"

                        ItemStyle-Wrap="true" />                    

                </Columns>

            </asp:GridView>

Class:

public class FollowUp

    {

        public int Id { get; set; }

        public string Name { get; set; }

        public string Description { get; set; }

        public bool FollowUpList { get; set; }

        public FollowUp(int id, string name, string description, bool followUpList)

        {

            this.Id = id;

            this.Name = name;

            this.Description = description;

            this.FollowUpList = followUpList;

        }

    }

Accessing on Server side:

for (int i = 0; i < followUpAppointments.Rows.Count; i++)

        {

            GridViewRow row = followUpAppointments.Rows[i];

            bool isChecked = ((CheckBox)row.FindControl("selectedRowCb")).Checked;

            if (isChecked)

            {

                int id = (Int32)followUpAppointments.DataKeys[i]["Id"];

                string name = followUpAppointments.DataKeys[i]["Name"].ToString();

                string description = followUpAppointments.DataKeys[i]["Description"].ToString();

                bool followup = (bool)followUpAppointments.DataKeys[i]["FollowUpList"];

                _selectedServices.Add(new FollowUp(id,name,description,followup));

            }

        }