TreeView: OnSelectedNodeC hanged not firing??

[Dotnet Gruven]

With this TreeView declaration:

<asp:TreeView ID="Cloner" runat="server"

SelectedNodeSty le-Font-Bold="true" SelectedNodeSty le-ForeColor="#003 E21"

OnTreeNodePopul ate="PopulateNo de" OnSelectedNodeC hanged="SelectN ode"

ExpandDepth="0" >

</asp:TreeView>

Nodes are added in PopulateNode() like so:

protected void PopulateNode(Ob ject source, TreeNodeEventAr gs e)

{

TreeNode newNode = null;

switch (e.Node.Depth)

{

case 0:

string locationIdStr = e.Node.Value;

try

{

int locationId = Convert.ToInt32 (locationIdStr) ;

e2006TableAdapt ers.MenusTableA dapter mta = new e2006TableAdapt ers.MenusTableA dapter();

mta.FillByLocat ionId(myDto.Men us, locationId);

foreach (e2006Table.Men usRow menuRow in myDto.Menus)

{

newNode = new TreeNode(menuRo w.MenuName, menuRow.MenuId. ToString());

newNode.SelectA ction = TreeNodeSelectA ction.Expand;

newNode.Populat eOnDemand = true;

e.Node.ChildNod es.Add(newNode) ;

}

}

catch { }

break;

// etc

And, finally, the leaf nodes are added with this code:

foreach (e2006.MenuItem sRow menuItems in myDto.MenuItems )

{

newNode = new TreeNode(menuIt ems.Name, menuItems.MenuI temId.ToString( ));

newNode.SelectA ction = TreeNodeSelectA ction.Select;

newNode.Navigat eUrl = "";

e.Node.ChildNod es.Add(newNode) ;

}

The question is: WHY doesn't the OnSelectedNodeC hanged="SelectN ode"

protected void SelectNode(Obje ct source, EventArgs e)

{ // This never fires!!!???!!!

TIA,

geo

[Kevin Yu [MSFT]]

Hi geo,

We have reviewed this issue and are currently researching on it. We will
update you ASAP. Thanks for your patience!

Kevin Yu
=======
"This posting is provided "AS IS" with no warranties, and confers no
rights."

[Dotnet Gruven]

Kevin, Is this issue still open?

Thanks
geo

"Kevin Yu [MSFT]" <v-****@online.mic rosoft.com> wrote in message
news:kV******** ********@TK2MSF TNGXA02.phx.gbl ...

Hi geo,

We have reviewed this issue and are currently researching on it. We will
update you ASAP. Thanks for your patience!

Kevin Yu
=======
"This posting is provided "AS IS" with no warranties, and confers no
rights."

[Steven Cheng[MSFT]]

Hi Geo,

Sorry for keep you waiting. As for the dynamically added TreeNode's
Selected event not fire problem, based on my research , it is due to the
TreeNode.Select Action you set in the original code...

In order to make the "TreeNodePopula ted" and "SelectedNodeCh anged" event
get fired for your new created nodes, we should set their SelectAction to
"SelectExpa nd", e.g:

=============== =============== ==

protected void TreeView1_TreeN odePopulate(obj ect sender, TreeNodeEventAr gs
e)
{
string name = e.Node.Text;
TreeNode node = null;
if (e.Node.ChildNo des == null || e.Node.ChildNod es.Count == 0)
{
for (int i = 0; i < 5; i++)
{
node = new TreeNode(name + i, name + i);
node.SelectActi on = TreeNodeSelectA ction.SelectExp and;
node.PopulateOn Demand = true;

e.Node.ChildNod es.Add(node);
}
}
}
=============== =============== =======

Hope helps. Thanks,

Steven Cheng
Microsoft Online Support

Get Secure! www.microsoft.com/security
(This posting is provided "AS IS", with no warranties, and confers no
rights.)
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| Subject: Re: TreeView: OnSelectedNodeC hanged not firing??
| Date: Wed, 21 Dec 2005 09:03:24 -0500
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| Kevin, Is this issue still open?
|
| Thanks
| geo
|
| "Kevin Yu [MSFT]" <v-****@online.mic rosoft.com> wrote in message
| news:kV******** ********@TK2MSF TNGXA02.phx.gbl ...
| > Hi geo,
| >
| > We have reviewed this issue and are currently researching on it. We will
| > update you ASAP. Thanks for your patience!
| >
| > Kevin Yu
| > =======
| > "This posting is provided "AS IS" with no warranties, and confers no
| > rights."
| >
|
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|

[Edward Kwan]

Dear Sir,

I would like to check if the dynamically load nodes can still fire the

onselectednodec hanged. Even if I changed to SelectExpand, it still does
not work. My code

is as follows. Please help. Thanks.

best regards,

Edward

<ASP:TreeView id="TreeView1" OnTreeNodePopul ate="TreeNodePo pulate"

OnSelectedNodeC hanged="TreeNod eSelectedNodeCh anged" ExpandDepth="0"
EnableViewState ="false"

Visible=False ShowLines="true " runat="server"> </ASP:TreeView>

Sub TreeNodeSelecte dNodeChanged(By Val sender As Object, ByVal e
As EventArgs)
Value = TreeView1.Selec tedNode.Value
Text = TreeView1.Selec tedNode.Text
TreeView1.Visib le = False
End Sub
Sub TreeNodePopulat e(ByVal sender As Object, ByVal e As
TreeNodeEventAr gs)
SetDV()
Dim nodes As DataView = GetChilds(DV, e.Node.Value)
' Populate Treeview.
For Each row As DataRowView In nodes
Dim newNode As New TreeNode()
newNode.Text = row("descriptio n").ToString ()
newNode.Value = row("code").ToS tring()
'If Not IsNumeric(newNo de.Value) Then
newNode.SelectA ction = TreeNodeSelectA ction.SelectExp and
newNode.Populat eOnDemand = True
'End If
e.Node.ChildNod es.Add(newNode)
'AddChild(DV, headNode)
Next
End Sub
*** Sent via Developersdex http://www.developersdex.com ***

[Edward Kwan]

Dear Sir,

I would like to check if the dynamically load nodes can still fire the

onselectednodec hanged. Even if I changed to SelectExpand, it still does
not work. My code

is as follows. Please help. Thanks.

best regards,

Edward

<ASP:TreeView id="TreeView1" OnTreeNodePopul ate="TreeNodePo pulate"

OnSelectedNodeC hanged="TreeNod eSelectedNodeCh anged" ExpandDepth="0"
EnableViewState ="false"

Visible=False ShowLines="true " runat="server"> </ASP:TreeView>

Sub TreeNodeSelecte dNodeChanged(By Val sender As Object, ByVal e
As EventArgs)
Value = TreeView1.Selec tedNode.Value
Text = TreeView1.Selec tedNode.Text
TreeView1.Visib le = False
End Sub
Sub TreeNodePopulat e(ByVal sender As Object, ByVal e As
TreeNodeEventAr gs)
SetDV()
Dim nodes As DataView = GetChilds(DV, e.Node.Value)
' Populate Treeview.
For Each row As DataRowView In nodes
Dim newNode As New TreeNode()
newNode.Text = row("descriptio n").ToString ()
newNode.Value = row("code").ToS tring()
'If Not IsNumeric(newNo de.Value) Then
newNode.SelectA ction = TreeNodeSelectA ction.SelectExp and
newNode.Populat eOnDemand = True
'End If
e.Node.ChildNod es.Add(newNode)
'AddChild(DV, headNode)
Next
End Sub

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