problems with TreeView ViewState in ASP.NET 2.0

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Hi Everybody,

I've got a strange problem with TreeView Control in ASP.NET.

The Controls Tree I've got on my page is like this:

MasterPage
Content[
UserControl[
Menu,
MultiView[
View1[
TreeView
]
View2[
...
]
]
]

The Menu control has two items that switch between the two Views in the
MultiView (I'm setting MultiView.ActiveViewIndex in the MenuItemClick event
handler).

Now, The problem happens when I select a node in the tree, click on the menu
item to move to View2, and the I click on the menu item to come back to View2.

In the MenuItemEvent handler, TreeView1.SelectedItem is null!

But, when the page is displayed the node that was selected before I moved to
the other view is displayed as selected!

I looks as if the ViewState of the Tree is restored AFTER the MenuItemClick
handler is called!

Has anybody ran across this problem before?

Nadav
 
Hi Nadav,

I've tried to create a simple test web site using the steps you described,
however I didn't see the issue on my side. Would you please send me a
reproducible project? Thanks.

By the way, normally if you could provide some more complete code while
asking the question, it might help you get the answers more quickly.

Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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Hi Nadav,

Thank you for your sample project. I was able to reproduce the issue using
your code. Currently I'm doing more research and will get back to you as
soon as I got more information. Thank you for your patience and
understanding.

Regards,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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