Strange Append behavior

[Steven]

I am using the following JavaScript to append a child node to the selected node:

        var nodeText = prompt("Please enter a description", "");
        if (nodeText != null && nodeText != "")
        {
            var treeView = $('#catalogTreeView').data('kendoTreeView');
            var selectedNode = treeView.select();
            treeView.append( { text: nodeText }, $(selectedNode));
        }

The first attempt results in an exception thrown in kendo.web.min.js at:

return this.insert(this._data.length,a) (_data is undefined)

However, if I immediately attempt to add the child node again, it appends without any errors.

The nodes for this TreeView are loaded using an MVC DataSource.  However, I would like my users to be able to append nodes manually.

[Alex Gyoshev]

Hello Steven,

The same scenario is working in the online TreeView API demo. Please refer to the code used there.

Kind regards,
Alex Gyoshev
the Telerik team