RadTreeNode CustomTemplate drag n drop

[Peter]

How to allow to drag node when i start dragging from hyperlink?
This is my template for nodes...

public class TreeNodeTemplate : ITemplate
{
    public void InstantiateIn(Control container)
    {
        Telerik.Web.UI.RadTreeNode node = (Telerik.Web.UI.RadTreeNode)container;
        if (!string.IsNullOrEmpty(node.NavigateUrl))
        {
            HyperLink hl = new HyperLink();
            hl.Text = node.Text;
            hl.NavigateUrl = node.NavigateUrl;
            hl.CssClass = "rtIn";
            container.Controls.Add(hl);
        }
        else
        {
            Label label1 = new Label();
            label1.Text = node.Text;
            container.Controls.Add(label1);
        }
    }
}