[Solved] Drag'n drop and load on demand

[jorge]

I am implementing drag and drop between trees (client side) and load on demand.  When droping a node with ExpandMode = ServerSideCallBack the new node on the destination tree has no + sign, but double clicking on the node loads the children.  Here is my clone function:

        function cloneNodeTree(node)
        {

            if (node.get_parent().get_value() != "Root")
            {
                cloneNodeTree(node.get_parent());
            }
            var destTree = $find("userTree");
            if (destTree.findNodeByText(node.get_text()) == null)
            {
                var newNode = new Telerik.Web.UI.RadTreeNode();
                newNode.set_text(node.get_text());
                newNode.set_value(node.get_value());
                if (node.get_attributes().getAttribute("groupID") != null)
                {
                    newNode.get_attributes().setAttribute("groupID", node.get_attributes().getAttribute("groupID"));
                    newNode.get_nodes().clear();
                    newNode.set_expandMode(2);
                }
                else
                {
                    newNode.get_attributes().setAttribute("layerID", node.get_attributes().getAttribute("layerID"));
                    newNode.set_expandMode(0);
                }
                newNode.set_imageUrl(node.get_imageUrl());
                //newNode.set_expandendImageUrl(node.get_expandedImageUrl());


                if (node.get_parent().get_value() == "Root")
                {
                    destTree.get_nodes().add(newNode);
                }
                else
                {
                    destTree.findNodeByText(node.get_parent().get_text()).get_nodes().add(newNode);
                }
             }
        }

What am I missing?

Jorge

[Nikolay]

Hi jorge,

Could you also paste the code you use to drag and drop the nodes along with the treeview declaration. It would be best if you isolate the problem in a small and running project and attach the files to a new support thread.

Kind regards,
Nick
the Telerik team

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[Rainz]

Also experiencing the same problem here.

Happens any time a serversidecallback node (that isn't yet expanded) is moved with client-side drag and drop.

The moved node loses its plus/expand symbol, but double-clicking still allows it to expand.

Thanks for any help you can provide

[Veselin Vasilev]

Hello,

This appears to be a bug in the treeview.
We found a workaround until the fix is ready.
Please download the attached zip file and give it a try.

Kind regards,
Veskoni
the Telerik team

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