| re: Inheriting the TreeView problem...
Quick and dirty, the important thing is the directcast in the afterselect
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs)
_ Handles MyBase.Load
TreeView1.Nodes.Add(New MyTreeNode("Belgium", "BE"))
TreeView1.Nodes.Add(New MyTreeNode("Netherlands", "NL"))
TreeView1.Nodes.Add(New MyTreeNode("France", "FR"))
TreeView1.Nodes.Add(New MyTreeNode("Germany", "GER"))
End Sub
Private Sub TreeView1_AfterSelect(ByVal sender As Object, ByVal e As _
System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect
MsgBox(DirectCast(TreeView1.SelectedNode, MyTreeNode).value)
End Sub
Public Class MyTreeNode
Inherits TreeNode
Private myvalue As String
Public Property value() As String
Get
Return myvalue
End Get
Set(ByVal Value As String)
myvalue = Value
End Set
End Property
Sub New(ByVal text As String, ByVal value As String)
MyBase.New()
Me.Text = text
Me.value = value
End Sub
End Class
hth Greetz Peter
"Samuel R. Neff" <blinex@newsgroup.nospam> wrote in message
news:chefv09q4e5dcqde04qrekgv591udm9o94@4ax.com...[color=blue]
>
> You can cast it.
>
> DirectCast(e.Node, MyCustomTreeNode).Value
>
> btw, perhaps you use the Tag property instead of a custom class?
>
> HTH,
>
> Sam
>
>
> On 26 Jan 2005 07:38:21 -0800, "johnb41" <orders@informatik.com>
> wrote:
>[color=green]
> >In my treeview, I need each node to hold a "value", not just
> >text/label. Kind of like how a ListBox item has text, and a value
> >associated with it. I need this because when a node is clicked, i need
> >to get the "value" behind the node and then use it do do something.
> >
> >Anyway, I made a custom treenode class that inherits from Treenode, and
> >added a property called "value".
> >
> >I was able to successfully create the Treeview programmatically from a
> >database, which includes the "value" property that i made.
> >
> >Here's my problem: The routine I have to run when a user clicks a node
> >is this:
> >
> >Private Sub treeview_AfterSelect(ByVal sender As System.Object,
> >ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles
> >treeview.AfterSelect
> >'do something with e.Node.value
> >End Sub
> >
> >Because my "value" property was added in my custom class, it is not
> >available to use in TreeViewEventArgs. So e.Node.Value will not work.
> >How can I do this?...i'm stumped!
> >
> >Thanks for your help!
> >John[/color]
>[/color]
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