• Dragging is disabled for the node, 'Recycle Bin'.
• Dropping is disabled for the node, 'My Computer'.
• Drag and dropping is disabled for the node, 'Desktop'

Desktop My Documents My Computer Local Disk (C:) Documents and Settings All Users Guest Program Files Common Files MSDN DVD-RAM Drive (E:) Guest's Documents My Network Places Recycle Bin

Enable drag and drop Conform before node drop Enable multiple node selection

    <obout:Tree ID="OboutTree1" ClientObjectID="obTree1" EnableDragAndDrop="true"
        OnNodeDrop="OnClientNodeDrop" runat="server">
        <Nodes>
            <obout:Node Text="Desktop" AllowDrag="false" AllowDrop="false" Expanded="true"
                ImageUrl="~/obout.ajax.ui/treeview/examples/img/WinXP/desktop.gif">
                ...
                <obout:Node Text="My Computer"  AllowDrop="false" Expanded="true"
                    ImageUrl="~/obout.ajax.ui/treeview/examples/img/WinXP/2PCRemote.gif">
                ...
                <obout:Node Text="Recycle Bin" AllowDrag="false" ImageUrl="~/obout.ajax.ui/treeview/examples/img/WinXP/13Recycle.gif">
                </obout:Node>
            </obout:Node>
        </Nodes>
    </obout:Tree>
            

    function OnClientNodeDrop(sender, args) {
        var chk_conform = document.getElementById("<%=chk_conformNodeDrop.ClientID %>");
        if (chk_conform.checked) {
            var action = 
                confirm("Move '" + getNodeText(args.sourceNode) + "' to '" + getNodeText(args.target) + "'?");
            args.cancel = !action;
        }
    }
    function getNodeText(node) {
        return node.innerText != undefined ? node.innerText : node.textContent;
    }