Gridview - don't show button control in Edit mode?

[K B]

Hi, I have the following control in my aspx page. It is an image button
that I do NOT want to show when the row is in edit mode. Could someone
please point me in the right direction?

Thanks
Kit

<asp:ButtonField ButtonType="Image" CommandName="Memberships"
ImageUrl="~/Images/users.gif"
Text="Memberships">
<ItemStyle HorizontalAlign="Center" VerticalAlign="Top"
Width="20px" />
</asp:ButtonField>