Dynamically adding controls to a DataList

Hey experts,

I am trying to add controls to my datalist at runtime, but I can't get it to work.  I don't know the name of the control UNTIL the program is run by the user...  Below is what I am trying to do, all I need to figure out is how to add the control to the datalist control.  I added two panel controls to the datalist's <ItemTemplate> section so I could do something like dlMyList.FindControl("PanelName").AddControl = *mycontrolhere*


Pseudocode of what I am trying to do:
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for(each row in datatable)
{
  if(the row == "something here")
  {
    create a control called row[i]
    add a new record in the datalist so we can add the control
    add the control to the datalist control
     
  }
}

Here is the datalist which was added at design time:
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<asp:DataList ID="dlRoles" runat="server" RepeatColumns="6" RepeatDirection="Horizontal" Width="100%">
  <ItemTemplate>
     <asp:Panel ID="pnlMain" runat="server" />
     <asp:Panel ID="pnlChild" runat="server" />
  </ItemTemplate>
</asp:DataList>