JS-error when cancelling OnClientNodeDropping

[FU]

It seems the OnClientNodeDropping bubbles through to the NodeExpand-event if it is cancelled. If I drag an item to an unexpanded node and hover above it, it is automatically expanded. But if I drag an item onto a node, quickly drop it and cancel the drop the node should not expand. When I run the code below, I get a Javascript-error and then the node is expanded:

<%

@ Page Language="C#" %>

<%

@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>

<!

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>Untitled Page</title>

<script>

function NodeDropped(sender, args)

{

if (!confirm('Noget'))

args.set_cancel(

true);

}

</script>

</

head>

<

body>

<form id="form1" runat="server">

<asp:ScriptManager id="ScriptManager1" runat="server" />

<telerik:RadTreeView ID="treeOrganization" runat="server"

Width="199"

Height="500"

OnClientNodeDropping="NodeDropped"

EnableDragAndDrop="true">

<Nodes>

<telerik:RadTreeNode runat="server" Text="Island" Expanded="true" AllowDrag="false"

AllowDrop="false">

<Nodes>

<telerik:RadTreeNode runat="server" Text="Zanzibar" AllowDrag="false">

<Nodes>

<telerik:RadTreeNode runat="server" Text="Weekend Package" AllowDrop="false" Value="1999">

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="1 Week Package" AllowDrop="false" Value="2999">

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="2 Week Package" AllowDrop="false" Value="3999">

</telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="Mauritius" AllowDrag="false">

<Nodes>

<telerik:RadTreeNode runat="server" Text="Weekend Package" AllowDrop="false" Value="2999">

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="1 Week Package" AllowDrop="false" Value="3999">

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="2 Week Package" AllowDrop="false" Value="4999">

</telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="Maldives" Expanded="true" AllowDrag="false">

<Nodes>

<telerik:RadTreeNode runat="server" Text="Weekend Package" AllowDrop="false" Value="3999">

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="1 Week Package" AllowDrop="false" Value="4999">

</telerik:RadTreeNode>

<telerik:RadTreeNode runat="server" Text="2 Week Package" AllowDrop="false" Value="5999">

</telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeNode>

</Nodes>

</telerik:RadTreeView>

</form>

</

body>

</

html>

[Simon]

Hi Mickey13,

This problem has already been resolved in the latest version of RadTreeView for ASP.NET AJAX. If you need the build, please open a formal support ticket and request it there. If it is not urgent, I suggest you wait until the Service Pack which we will release later this week.

As for the Expand functionality, this is by design. When one is dragging a node and hovers over another Node, it should expand, so that one can continue dragging and navigating through the TreeView at the same time.

Greetings,
Simon
the Telerik team

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