Hi,
Here you are.
Example
<%@ Page Language="C#" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
protected void NodeLoad(object sender, NodeLoadEventArgs e)
{
string prefix = e.ExtraParams["prefix"] ?? "";
if (!string.IsNullOrEmpty(e.NodeID))
{
for (int i = 6; i < 11; i++)
{
Ext.Net.TreeNode treeNode = new Ext.Net.TreeNode();
treeNode.Text = prefix + e.NodeID + i;
treeNode.NodeID = e.NodeID + i;
treeNode.Nodes.Add(new Ext.Net.TreeNode()
{
Text = "child",
Leaf = true
});
e.Nodes.Add(treeNode);
}
}
}
</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Ext.NET Example</title>
</head>
<body>
<form runat="server">
<ext:ResourceManager runat="server" />
<p>
Set custom node prefix:
</p>
<ext:TextField ID="TextField1" runat="server" Text="Node" />
<ext:TreePanel runat="server" Title="Tree" AutoHeight="true">
<Loader>
<ext:PageTreeLoader OnNodeLoad="NodeLoad">
<BaseParams>
<ext:Parameter Name="prefix" Value="#{TextField1}.getValue()" Mode="Raw" />
</BaseParams>
</ext:PageTreeLoader>
</Loader>
<Root>
<ext:AsyncTreeNode NodeID="0" Text="Root" Checked="False" />
</Root>
<Listeners>
<CheckChange Handler="if (checked && node.reload) {
node.reload();
}" />
</Listeners>
</ext:TreePanel>
</form>
</body>
</html>
