I have basically something like this:

<asp:datagrid id="DGrid" runat="server" AutoGenerateColumns="false">
  <asp:TemplateColumn HeaderText="Stuff">
    <ItemTemplate> 
      <asp:PlaceHolder id="PH" runat="server" />
    </ItemTemplate>
  </asp:TemplateColumn>
</asp:datagrid>

I need to add a Button to the PlaceHolder depending on the values of the data I am binding. At the moment I am adding the Button after the data is bound in Page_Load. The problem is that the data binding methods are not called in postbacks, so the Button disappears when I click on it.

Any suggestions on how to do this? Problem is that I need to know some attributes of the grid item to create the Button, so I cannot create it before the data has been bound.