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I am not able to get , only the current item which is expanded . When I am trying to get the expanded item , i am getting all the expanded items from the treeview, but I don't want that , I need to get the clicked expanded item.

user979901
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  • By `clicked expanded item`, do you mean the currently selected item? If so, see http://stackoverflow.com/q/1238304/464709. – Frédéric Hamidi Nov 01 '11 at 07:32
  • How can you be sure of **current** expanded item? Coz you can expand more than one tree view items, correct? I guess what you want is current selected item. Correct me if I am wrong. – WPF-it Nov 01 '11 at 07:36
  • In a treeview u are right ,there can be many items expanded . The problem which i am facing is i need only the Item which i expanded when I click on perticular item . Suppose in treeview I click on a root element for example School . Under school we have a "class" as its child , then we have "student" as "Class" item's child.So I need is "School" when I expand school , and "Class" when I expand class, and "Student" when I expand student . But here when I expand Student with treeviewitem.expand event, I am getting School and Class both because both are expanded when I expand Class . – user979901 Nov 01 '11 at 10:07
  • I have tries this approach earlier , but in my case case if we do it ,the child node does not appear – user979901 Nov 01 '11 at 12:04

2 Answers2

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You'll need to respond to the AfterExpand event.

By restricting to the click you are shutting out keyboard users.

EDIT

Sorry, that's WinForms. Here is the WPF solution:

<TreeView TreeViewItem.Expanded="TreeViewItem_Expanded" />
Emond
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2

Please use 

 e.Handled=true;

in your treeViewItem.Expanded event handler. That way it will only fire for the actual item expanded and not bubble route to the parent tree view items.

WPF-it
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