Which node was selected?

Consider the following XML fragment...

<channel>
...
    <item>
      <title>John</title>
       ...
    </item>
    <item>
      <title>Jane</title>
       ...
    </item>
</channel>

When the file is loaded into the TreeView control and a <title> node is selected I have no idea how to determine how to identify which parent the <title> actually descends from.

The TreeNode.Parent property returns the value of the node's parent. The value would be 'item' but I need to identify which parent and which item as there are multiple instances of the <item> element in the file which have the same value.

The broader objective is to determine which node has been selected to enable editing the data in the selected node.

Please paste your code if handy but advising me of the right methodology or referral to documents will be just as appreciated. Thanks for your comments...

<%= Clinton Gallagher

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Which node was selected?

Ron Walker
Post this on http://forums.asp.net forums.
XyMeXian Archer
Some times the following code will help you. To call this function, just do like this.
GetParent(MyTreeview, MyNode).

Private Function GetParent(ByVal Treeview1 As TreeView, ByVal node As TreeNode, _

Optional ByVal startNode As TreeNode = Nothing, _

Optional ByRef gotIt As Boolean = False) As TreeNode

Dim MyNodeCollection As TreeNodeCollection

Dim TempNode As TreeNode

Dim TempGotIt As Boolean

' start from where

If startNode Is Nothing Then

MyNodeCollection = TreeView1.Nodes

Else

MyNodeCollection = startNode.Nodes

End If

' loop through the nodes collection

For Each nd As TreeNode In MyNodeCollection

' got it

If nd.GetNodeIndex = node.GetNodeIndex Then

If startNode Is Nothing Then

gotIt = True

Return Nothing

Else

gotIt = True

Return startNode

End If

End If

' if not get it, then search in child nodes

TempNode = GetParent(Treeview1, node, nd, TempGotIt)

If TempGotIt = True Then

Return TempNode

End If

Next

End Function
Dino Ablakovic
Kishore Ramakrishnan wrote:
Some times the following code will help you. To call this function, just do like this.
GetParent(MyTreeview, MyNode).

<snip />

I didn't see a GetParent method %-( Thanks Kishore.
Imti
TreeNode.Tag can store anything and what wrong with TreeNode.Parent :-)
Which node was selected?

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