获取gridview中指定控件的值

<asp:CheckBox runat="server" Checked="false"  Width="20px" Height="20px" name='<%# Eval("id") %>'/>
我想获取checkbox中name的值，该如何获取！ 谢谢 <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Height="100%" 
                        Width="93%">
                        <Columns>
                            <asp:BoundField DataField="company" HeaderText="企业名称" ReadOnly="True" 
                                SortExpression="company" />
                            <asp:BoundField DataField="location" HeaderText="地点" ReadOnly="True" 
                                SortExpression="location" />
                            <asp:BoundField DataField="price" HeaderText="价格" ReadOnly="True" 
                                SortExpression="price" />
                            <asp:TemplateField>
                            <HeaderTemplate>
                                图片 &nbsp;&nbsp;&nbsp;&nbsp;
                                勾选
                            </HeaderTemplate>
                                <ItemTemplate>
                               
                                    <asp:Image runat="server" id="img" Height="20px" ImageUrl='<%# Eval("image") %>' 
                                        Width="20px"/>
                                       
                                       &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                                       <asp:CheckBox runat="server" Checked="false"  Width="20px" Height="20px" name='<%# Eval("id") %>'/>
                                </ItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                    </asp:GridView>