I have a gridview with a checkbox field . I need to make the checkbox read only

```
<asp:GridView ID="grdExam" 
              CssClass="grid" 
              runat="server" 
              AutoGenerateColumns="false"  
              DataKeyNames="Id">
    <Columns>
        <asp:BoundField DataField="ID" 
                        HeaderText="ID" 
                        SortExpression="ID" />
        <asp:BoundField DataField="Name" 
                        HeaderText="Name" 
                        SortExpression="Name" />
        <asp:BoundField DataField="Type_Id" 
                        HeaderText="Type" 
                        SortExpression="Type" />
        <asp:TemplateField>
            <ItemTemplate>
                <asp:CheckBox ID="chkSelect" 
                              runat="server" 
                              Checked='<%# Eval("Enabled")%>' />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

```

There is no server side property to make the Checkbox readonly. IS there any server side code that i can use to make the checkbox read only.