Problem with RadTreeView on event _onNodeLoadingSuccess

[Deni]

The following error occurs and I have made some initial research;

Line: 1707 Error: 'get_element()' is null or not an object

This occurs only when tree is not loaded and user clicks to go on other screen. I have made some analysis on this function and this is due to missing parameter attributes.
When the error occurs the second parameter in this f-tion o in the in the _contex attribute in most of the values has nulls.
In line 1670 all this values are transferred to variable e;

 

 

var e=o.get_context();
And finally in line 1707 when e.get_element() is called, function fails.

I have noted that this event (onNodeLoadingSuccess) happens after TreeViewNodePopulating and before TreeNodePopulated and a possible solution is if I could check the context and cancel tree loading.

I have tried it this way but seems like context element is locked because it only has value {..} but nothing else can be seen.

 

function TreeViewNodePopulating(sender, eventArgs) {
var _contextElement = eventArgs.get_context();
} 
Could you tell me how to access this context element and check it value and if it’s null I could cancel the whole tree loading process.
Btw the tree loading is successful but after user press ok on this error and the tree reloads itself.

 

 

Additional information:
Tree view is client loaded trough web service
Telerik version 2010.2.826.35

Best Regards
Deni Spasovski

 

 

[Deni]

update: in the variable e when error occurs there is additional attribute 
  _rendered = false

[Nikolay Tsenkov]

Hi Deni,

I have posted an answer on this question in the support ticket you opened.
Please, check my answer there.


Regards,
Nikolay Tsenkov
the Telerik team