Is there any way to get the dataItem of current expanded node using onExpand event?

[sarath]

 I would like to get the dataItem onExpand of the node. I am using AngularJs Kendo treeGrid<div kendo-tree-view="tree"
             k-data-source="treeData"
             k-template="itemTemplate"
             k-on-expand="onExpand(selected, data, dataItem, columns)"></div>

<!-- angular module -->
angular.module("KendoDemos", [ "kendo.directives" ]);
function MyCtrl($scope) {
           $scope.onExpand = function(selected, data, dataItem, columns) {
           <!-- Here I would like to get the current dataItem. The dataItem as a parameter is coming as undefined. -->
           alert('onExpand ' + e); 
      }
}

Here data-Item represents the current selected node dataSource value.

[Mihai]

Hello,

The dataItem is available only for k-on-change events.  However, for expand you can easily get it from the kendoEvent.  Note that there is a distinction between selected item and expanded item -- a tree allows you to select an item, and expand a different item.  Hope these samples clarify:

1. for Tree: http://dojo.telerik.com/@mishoo/udidI/2
2. for Grid: http://dojo.telerik.com/@mishoo/okEQe

I included the grid sample because it's not really clear to me if you're using a tree or a grid.  But in any case, getting at the expanded element is similar for both: call widget.dataItem(domNode), where domNode is the expanded element which you get via kendoEvent.  For tree that's ev.node, and for grid it's ev.masterRow.

Hope this helps.

Regards,
Mihai
Telerik

 

 

[sarath]

Hello Mihai,
    Thanks for your reply. I am able to get the expanded node onClick of expand. I am using tree widget. Now after getting the current expanded node, I would like to make a HTTP Post request to the server, which will get the childNodes and have to append the items.
 
Here is my sample code:
http://dojo.telerik.com/EvuSA

Thanks & Regards
Sarath U

[Alex Gyoshev]

Hello Sarath,

Are you by any chance trying to implement load on demand? If so you can use the out-of-the-box support for remote loading, as shown in this example.

Regards,
Alex Gyoshev
Telerik