Mega Code Archive
Tree view event
<![CDATA[
<%@ page language="C#" %>
<%@ import namespace="System.IO" %>
<script runat="server" language="c#">
void TreeView1_TreeNodePopulate(object sender, System.Web.UI.WebControls.TreeNodeEventArgs e)
{
if (e.Node.ChildNodes.Count == 0) {
this.LoadChildNodes(e.Node);
}
}
private void LoadChildNodes(TreeNode node) {
DirectoryInfo directory;
if (node.ValuePath.Length == 0) {
directory = new DirectoryInfo(node.Value);
} else {
directory = new DirectoryInfo(node.ValuePath);
}
foreach(DirectoryInfo subDirectory in directory.GetDirectories()) {
TreeNode subNode = new TreeNode(subDirectory.Name);
subNode.PopulateOnDemand = true;
subNode.SelectAction = TreeNodeSelectAction.SelectExpand;
node.ChildNodes.Add(subNode);
}
}
</script>
<html>
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form runat="server">
<asp:treeview id="TreeView1"
runat="server"
font-underline="False"
font-names="Tahoma"
font-size="8pt"
font-italic="False"
font-bold="False"
imageset="XP_Explorer"
forecolor="Black"
nodeindent="15"
ontreenodepopulate="TreeView1_TreeNodePopulate">
<selectednodestyle backcolor="#B5B5B5"
font-underline="False"
font-italic="False"
font-bold="False">
</selectednodestyle>
<hovernodestyle forecolor="#6666AA"
font-underline="True"
font-italic="False"
font-bold="False">
</hovernodestyle>
<parentnodestyle font-underline="False" font-italic="False" font-bold="False">
</parentnodestyle>
<leafnodestyle font-underline="False" font-italic="False" font-bold="False">
</leafnodestyle>
<nodes>
<asp:treenode checked="True"
value="c:\"
populateondemand="True"
showcheckbox="False"
selectaction="SelectExpand"
selected="True"
text="Drive C:\">
</asp:treenode>
</nodes>
<nodestyle forecolor="Black"
verticalpadding="2"
horizontalpadding="2"
font-underline="False"
font-names="Tahoma"
font-size="8pt"
font-italic="False"
font-bold="False">
</nodestyle>
<rootnodestyle font-underline="False" font-italic="False" font-bold="False">
</rootnodestyle>
</asp:treeview>
</form>
</body>
</html>
]]>