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Error on Shortlist change

Last Post 05/31/2010 2:29 PM by Peter Donker. 3 Replies.

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Mark Hannig

New Member
Posts:13

05/14/2010 1:39 AM
Hi there. I am trying to hide the link in the short list for users that are not registered. In other words, I want everyone to see that the file is there, but only be able to download it if they are logged in. I keep getting the error "Object reference not set to an instance of an object." In the "visible" attribute of the placeholder I have tried Request.IsAuthenticated, Me.User.IsInRole("Registered Users"), Me.UserInfo.IsInRole("Registered Users"), Context.Current.User.IsInRole("Registered Users"), and a few others. When I manually set the property to "true" and "false" it works, so I know the error has to do with the code in the block. Can you help please? Here is the code I am using: <asp:PlaceHolder ID="plAllowed" runat="server" Visible='<%# Me.User.IsInRole("Registered Users") %>'> <%#DataBinder.Eval(Container, "DataItem.Title")%> <asp:PlaceHolder ID="plNotAllowed" runat="server" Visible='<%# !Me.User.IsInRole("Registered Users") %>'> <%#DataBinder.Eval(Container, "DataItem.Title")%> Thanks in Advance!

Mark Hannig

New Member
Posts:13

05/14/2010 1:59 AM
Sorry... The code didn't come out right. Trying again: <asp:PlaceHolder ID="plAllowed" runat="server" Visible='<%# Me.User.IsInRole("Registered Users") %>'> <%#DataBinder.Eval(Container, "DataItem.Title")%> <asp:PlaceHolder ID="plNotAllowed" runat="server" Visible='<%# !Me.User.IsInRole("Registered Users") %>'> <%#DataBinder.Eval(Container, "DataItem.Title")%>

Mark Hannig

New Member
Posts:13

05/14/2010 2:00 AM
Well... that's not working. Basically, I am setting the Visible property of a placeholder to the value of those items mentioned above. Hope that makes sense.

Peter Donker

Veteran Member
Posts:4536

05/31/2010 2:29 PM
Hi Mark, Try using UserId. It's set to -1 if the user is not logged in. And use it without "Me." in front as the ascxs have the nasty habit of having layers in between itself and the codebehind. Peter

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Forums > Document Exchange > User Interface

About Bring2mind

Bring2mind is the company of Peter Donker, a DotNetNuke enthusiast who has been involved with the platform from the very beginning. At the same time as the market for modules emerged, he realized there was no good document management solution for the platform yet and he set about creating this. In part he based the module on his experience with other document management systems he used while working as a researcher. His module, Document Exchange, was an instant success and has since become the premier document management solution for DotNetNuke. In 2004 he created Bring2mind as a vehicle for the module and is one of the few successful businesses solely based on a DotNetNuke product.

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