Navigation control broken in SL3

[gerry]

I am wanting to use the Navigation control in SL3 and turn on UserBrowserHistory=true.  However, I've found that unless my project has a reference to the old System.Web.Silverlight dll and has an <asp:Silverlight ... to reference Silverlight it will throw a script error.  In otherwords, if I use the recommended way of referencing Silverlight via <object ... the Navigation control will not work.  It throws a script error on page load if I have the UseBrowserHistory = true.  The reason is that the emitted javascript by Telerik is expecting a SIlverlight object.

Gerry

[Valentin.Stoychev]

Hello gerry,

The Telerik page navigation needs the ASP.NET Ajax libraries in order to use the browser history. You will need to host the Silvrelight application into a Ajax enabled ASP.NET page.

On another note our plans are to obsolete this component, since there is now a page navigation inside the SL3 framework. So if you are using SL3 it is recommended to convert to the Microsoft page navigation model.

Sincerely yours,
Valentin.Stoychev
the Telerik team

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[gerry]

Valentin,

I am aware of the SL3 navigation features but we have a bunch of pages written using the Telerik control and are wanting to port them.

The project is Ajax enabled.  Essentially if I convert my <asp:silverlight to an object tag it then throws a javascript error int he code emitted by Telerik.

RAD_AG_CLIENT_HistoryManager = function(silverlightControl) {

 

 

this.AG_HM = null;

 

 

this.AG_HM = silverlightControl.Content.RAD_AG_HistoryManager;

 

this.AG_HM.JavaScriptHistoryManager = this;

 

}

in the debugger it appears that silverlight is null.

Here is the object tag:
 <telerik:RadScriptManager ID="RadScriptManager1" runat="server"
  EnableScriptCombine="False"  EnableHistory="True" >
 </telerik:RadScriptManager> 
 <object data="data:application/x-silverlight-2," type="application/x-silverlight-2"
        style="height: 300px; width: 500px">
        <param name="source" value="/ClientBin/Navigation.xap" />
        <param name="minRuntimeVersion" value="3.0.40624.0" />
        <param name="autoUpgrade" value="true" />
        <param name="InitParams" value="" />
        <a href="http://go.microsoft.com/fwlink/?LinkID=149156&v=3.0.40624.0" style="text-decoration: none">
            <img src="http://go.microsoft.com/fwlink/?LinkId=108181" alt="Get Microsoft Silverlight"
                style="border-style: none" />
        </a>
    </object>
    <iframe id="_sl_historyFrame" style="visibility: hidden; height: 0px; width: 0px;
        border: 0px"></iframe>

Versus this tag:
 <telerik:RadScriptManager ID="RadScriptManager1" runat="server"
  EnableScriptCombine="False"  EnableHistory="True" >
 </telerik:RadScriptManager> 
   <div style="height: 100%;">
    <asp:Silverlight ID="ManageDataFeeds"
     Source="~/ClientBin/Navigation.xap"
     InitParameters="" upo
     MinimumVersion="3.0.40624.0"
     Width="100%"
     Height="100%"
     runat="server" />
   </div>

So does the Telerik navigation code have a dependency upon using the <asp:silverlight tag on pages (and thus a dependency upon the older System.Web.Silverlight DLL?

Gerry

[Bobi]

Hello gerry,

Can you please send us  a sample project in order to reproduce this issue or explain in more details the structure of your application?



Kind regards,
Boryana
the Telerik team

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[gerry]

Boryana,

I submitted a ticket where I included a sample.  #299430

Thanks,
Gerry

[gerry]

I thought I would post the solution here.  The Telerik navigation control required that you have an id on your object tag--it doesn't matter what it is but it must be there or else the injected Telerik script code with throw an error that appears unrelated to the objec tag.

e.g.
<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="obj" ...

Gerry

[Bobi]

Hello gerry,

You are right in order to use RadNavigation with Ajax browser history in Silverlight 3 all you need to do is just to add some id to the object tag and add EnableHistory="True" :