is Eval("HotelID") a double? If so it may be trying to use arithmatic to "add" "hotelid=" to the value of "hotelid. Can you cast "hotelid" as a string? Cstr(Eval("HotelID"))

I was premature in thinking the problem was solved. I changed the code to read:

<asp:HyperLink ID="hName" Runat="server" Text='<%# Bind("Name") %>' NavigateUrl='<%# DotNetNuke.Common.Globals.NavigateURL(PortalSettings.ActiveTab.TabID, "HotelForm","mid="+ Cstr(ModuleId), "hotelid="+ Cstr(Eval("HotelID"))) %>'  />

and what appears to be a correct url is generated:

http://localhost:4195/DNN451/Hotels/tabid/58/ctl/HotelForm/mid/384/hotelid/8/Default.aspx

but the control is not loaded/displayed and there are no error messages. And breakpoints in Page_Init or Page_Load are not hit.

The module definition file includes:

           <control>
              <key>HotelForm</key>
              <src>DesktopModules/Hotels/ViewHotel.ascx</src>
              <type>View</type>
            </control>

Any suggestions what is wrong or how to go about debugging this?

Jon

<asp:HyperLink ID="hName" Runat="server" Text='<%# Bind("Name") %>' NavigateUrl='<%# DotNetNuke.Common.Globals.NavigateURL(PortalSettings.ActiveTab.TabID, "HotelForm","mid="+ Cstr(ModuleId) + "?hotelid="+ Cstr(Eval("HotelID"))) %>'  />