Réponse acceptée !
Premiere question asp.net 2.0

et donc premiere reponse en asp.net 2.0

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<script runat="server">
Private Sub page_load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
Dim I As Long, j As Long
Dim nodeCatRF As TreeNode, nodeRF As TreeNode
For I = 1 To 5
nodeCatRF = New TreeNode
nodeCatRF.Text = "acccc" & I
nodeCatRF.Value = "a" & I
TreeView1.Nodes.Add(nodeCatRF)
For j = 1 To 2
nodeRF = New TreeNode(nodeCatRF.Value)
nodeRF.Text = "bbb" & j
nodeRF.Value = "a"
nodeCatRF.ChildNodes.Add(nodeRF)
Next
'
Next
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TreeView ID="TreeView1" Runat="server" ShowLines="True">
</asp:TreeView>
</div>
</form>
</body>
</html>
Chez moi ce code fonctionne donc j'espere que chez toi aussi
@+
Cyril