RESOLVED!! How to display a checkbox in a Datagrid?

[ARPRINCE]

How do you make a boolean column appear as a checkbox in a datagrid using VB code behind the pages?

My original code looks like this (generated when I was designing my datagrid using the property pages):

<asp:BoundColumn DataField="ItemMarkDown" HeaderText="Markdown">
<ItemStyle HorizontalAlign="Center"></ItemStyle>
</asp:BoundColumn>

I then went to my HTML code and replaced it with this:

<asp:TemplateColumn HeaderText="MarkDown">
	<ItemTemplate>
	<asp:CheckBox id="ItemMarkDown" runat="server" checked='<%# DataBinder.Eval
                (Container.Dataitem, "ItemMarkDown")%>' Enabled=False />
	</ItemTemplate>
</asp:TemplateColumn>

I run the page (F5) and it correctly displays the boolean field with a checkbox. However, when I try to click back to "DESIGN" tab, I get an error:

Could not open in Design view. Place quotes around a '<% %>' block used as an attribute value or within a <Select> element.

I tried placing quotes but that didn't work.

Is there a way to do this on the vb code page instead of the html page?

Any ideas?

Thanks