Template and RegisterScriptControl

[David Reuben]

I have a tree control where the nodes are loading via ServerSideCallback. The structure is basically Regions, States, and Markets. Most of the time, the Markets are simply a list of nodes with checkboxes. However, on some Markets I need to display both a checkable list and a clickable map.

So, for example, I have created a user control that contains TabStrip and MultiPage controls... one page contains the map, and the other contains a CheckboxList of markets. When this user control is displayed, however, I get a client-side alert stating that "Script control 'Tabs_XXXXX' is not a registered script control. Script controls must be registered using RegisterScriptControl() before calling RegisterScriptDescriptors(). Parameter name scriptControl." How should I handle this?????

Two other notes: If I add simple controls into the template (i.e. labels), instead of something 'complicated' (like the TabStrip), then everything works fine. Second, not sure if this is needed or not, but based on the documentation, I am instantiating the User Control in the Page.Init event.

[Atanas Korchev]

Hi David Reuben,

Indeed nodes added via ServerSideCallback mode cannot be used with "complex" controls with rich client-side behavior. The reason is simple - ASP.NET 2.0 callbacks which are used to perform the server-side callback do not support registration of ASP.NET Ajax controls. The only workaround is to use ServerSide expand mode. You can find more info in this blog post.

Regards,
Albert
the Telerik team

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[Adrian]

On the instructions: this.Page.RenderControl (hw) I receive: Script control 'RadGrid' is not a registered script control. Script controls must be registered using RegisterScriptControl () Before calling RegisterScriptDescriptors (). 
How can I fix this? Thanks

[Eyup]

Hi Adrian,

Can you elaborate on your specific scenario? What are you trying to achieve? Do you replicate this problem with any of our live demos?
http://demos.telerik.com/aspnet-ajax/grid/examples/functionality/filtering/basic-filtering/defaultcs.aspx

Looking forward to your reply.

Regards,
Eyup
Telerik

[Adrian]

I solved the previous error - I set RegisterWithScriptManager to false.

Thanks for the reply.

Now I have the following question:
  I want to Export HTML DIV contents to PDF using iTextSharp and I want to use RenderControl with Asp Panel. 
Asp Panel contains several RadGrid. 
I thought about this solution, because I need to export a section of a asp.net(with CSS) page to PDF.
        Is this a viable solution to export in PDF format or is there a better solution? 

Thanks.  

[Kostadin]

Hi Adrian,

I have already answered your other forum thread, so I would suggest you to close this one and continue our conversation there.

Regards,
Kostadin
Telerik