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FlyTreeView (ASP.NET)

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UI doesn't refresh node list

Link Posted: 29-Oct-2007 05:50

Toadkillerdog

Total Posts:0

Joined:4/28/2024

Hi, I've got a control on which I'm hosting the TreeView. I've also got a dropdownlist on that same control. What I want to have happen is that when a user selects a particular value in DDL, it changes the nodes in the treeview. It appears that the data is getting updated, but the UI is not refreshing.

Link Posted: 29-Oct-2007 06:02

EvgenyT

Total Posts:0

Joined:4/28/2024

Do you host treeview in AJAX' update panel? Or how do you update treeview?

Link Posted: 29-Oct-2007 06:06

Toadkillerdog

Total Posts:0

Joined:4/28/2024

No, it's not in an Ajax Update panel.

Link Posted: 29-Oct-2007 06:18

EvgenyT

Total Posts:0

Joined:4/28/2024

You can debug your page and make sure the treeview holds required nodes (for example somewhere at Page.PreRender).

Probably you just do not re-bind treeview, so treeview just loads its nodes from viewstate.

Link Posted: 29-Oct-2007 06:28

Toadkillerdog

Total Posts:0

Joined:4/28/2024

Since I'm not performing a postback, I imagine I'll have to host in an Ajax panel.

Link Posted: 29-Oct-2007 06:40

Toadkillerdog

Total Posts:0

Joined:4/28/2024

[quote="EvgenyT"]You can debug your page and make sure the treeview holds required nodes (for example somewhere at Page.PreRender).

Probably you just do not re-bind treeview, so treeview just loads its nodes from viewstate.

Also, I'm not binding to a data source.

Link Posted: 29-Oct-2007 07:03

EvgenyT

Total Posts:0

Joined:4/28/2024

[quote="Toadkillerdog"]Since I'm not performing a postback, I imagine I'll have to host in an Ajax panel.

Yes, surely. You have to postback or partially-postback (through UpdatePanel control). There's no other way.