TreeNode.NavigateUrl issue

shailaja.bhatnagar

9y1.5k.NET

The Treeview node is a linked to a PDF which opens directly in a new browser tab when clicked. I want to call a procedure to store some values when I click on the node and before it opens PDF in new browser.

I tried SelectedNodeChanged event but it is not firing. Then I found on MSDN website that

When a node is in navigation mode, all selection events are disabled for that node. Clicking the node in navigation mode links the user to the specific URL

I am populating node on demand

Dim TNode1 As New TreeNode

Dim CNode1 As New TreeNode

CNode1.Text = GetReportTitle(oDS.Tables(0).Rows(i).Item("ABCD")) & " - " & oDS.Tables(0).Rows(i).Item("ABSTRACT")
CNode1.NavigateUrl = Replace(oDS.Tables(0).Rows(i).Item("FILEPATH").ToString, "E:\XYV", sWWWServer)

TNode.ChildNodes.Add(CNode1)
TNode.ExpandAll()

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

shailaja.bhatnagar9y ago
Thanks for the reply but I want something like below . When I click on the node I want to call a procedure to store some values and than direct the user to the specified URL,

Sub treeview_SelectedNodeChanged (ByVal sender As Object, ByVal e As EventArgs)
InsertDataProcedure()
End Sub

Dim TNode1 As New TreeNode
Dim CNode1 As New TreeNode
CNode1.Text = GetReportTitle(oDS.Tables(0).Rows(i).Item("ABCD")) & " - " & oDS.Tables(0).Rows(i).Item("ABSTRACT")
CNode1.NavigateUrl = Replace(oDS.Tables(0).Rows(i).Item("FILEPATH").ToString, "E:\XYV", sWWWServer)
TNode.ChildNodes.Add(CNode1)
TNode.ExpandAll()

but when a node is in navigation mode, selection events are disabled for that node. Clicking a node will direct the user to the specified URL, rather than posting the page back to the server and raising an event.
Manikandan Murugesan9y ago
Refer the following Links : https://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.treenode.navigateurl(v=vs.110).aspx

https://forums.asp.net/t/1222486.aspx?TreeView+and+the+NavigateUrl+not+working