You can traverse all TreeNodes in the Page_Load event using the GetAllNodes() method of Telerik RadTreeView and add the number of child nodes to the parent node's Text using code similar to the shown below.
Example:
| C# |
 Copy Code |
|
...
protected override Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
ArrayList allNodes = RadTree1.GetAllNodes();
foreach (RadTreeNode node in allNodes)
{
if (node.Nodes.Count > 0)
node.Text = node.Text + " (" + node.Nodes.Count.ToString() + ")";
}
}
}
...
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