Late binding the template

[Stuart Hemming]

I've been playing with this example from the code library and wondered if it were possible to modify it so that the templated content is late bound.

What I'm trying to do is this: I have a PanelBar with a TreeView as the templated content. I don't want to bind any TreeView until and unless the relevant PanelBar item is clicked on to expand it.

Any thoughts would be much appreciated.

Ta.

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Stuart

[Paul]

Hello Stuart,

Please refer to this forum post for tips on the matter.

Sincerely yours,
Paul
the Telerik team

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[Stuart Hemming]

Paul,

Thanks for that.

I'll get back to you when I've tried to fit it in.

Many Thanks.

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Stuart

[Stuart Hemming]

Paul,

Thanks. That post provided most of what I needed.

One of the things my user needed was for the PanelBar's ExpandMode to be set to MultipleExpandedItems so I moved the code to load the content in to the page's OnPreRender event after testing to see if each PanelBar item was expanded.


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Stuart

[Stuart Hemming]

I forgot to say, if anyone want's to see how you can do this with multiple open items, mail me at sejhemming at gmail dot com

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Stuart

[Stuart Hemming]

One thing that you might not appreciate with this approach is that you have to data bind your content control each time that page posts back which means that its state (in the case of a treeview, to expanded and/or selected state) or each node is lost. So, if you want to retain the state you've got to do it yourself as part of your content control.

So, to prevent me from, potentially, reinventing the wheel; is there a way of serializing the state of a treeview's node collection?

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Stuart

[Atanas Korchev]

Hello Stuart Hemming,

You can use the GetXml method of the treeview.

Kind regards,
Albert
the Telerik team

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[Stuart Hemming]

Thanks Albert, I'd missed that one.

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Stuart