Hi, with angular Kendo 14++ we lost the Icon Class. But now how I can  cutomize treeview custom drag template?

I whant to add the k-i-cancel icon on some specific node. In the pass I was using:

Then in the getDragStatus I can do the logic and push the correct icon in ngClass.

For now I remove the template because I lost all the other icon like (add, insert, ... )

Its just for visual help, because I validate the drop in the "nodeDrop" fonction.

Thanks

Is there a way to expand disabled nodes in the treeview component? There was a solution (https://www.telerik.com/forums/expand-disabled-nodes) but with the current version of kendo-ui it does not work anymore.

It seems that the expand/collapse icon is now disabled as well and it does not fire any event. Is there another solution to make this work again?

The API documentation for the TreeView shows a loadCompleted event, but I'm not seeing it in the build I'm using. 2021.3.1207

https://docs.telerik.com/kendo-ui/api/javascript/ui/treeview/events/loadcompleted

Thanks

Hello,

I have a huge volume of data loading in Kendo UI tree by ondemand set to true. With this feature I couldn't do a search since not all the child nodes are loaded. The current search feature only searches the loaded nodes in the tree.

I need to achieve the search feature with the ondemand set to true to satisfy the business need. Can you please help me here?

Thanks

Hi,

I am using kendo ui treeview for sort of selectable hierarchical menu. This menu can contain pretty much data with deep tree hierarchy.

Ever since we implemented it (few years ago), we used approach suggested here:
https://docs.telerik.com/kendo-ui/knowledge-base/filter-out-search-results

This was working fine so far. However, we finally started updating things to the newer versions, and after update to 2022.2.802 this method became 3-4 times slower than before.
For example same filtering method with exactly same dataset and the same search keyword has following values:

Before update:
measure filter 0.4153999999985099

After update:
measure filter 2.279300000000745

Even this piece of code gets slower

      if (data) {
        // Re-apply the filter on the children.
        dataSource.filter({ field: "hidden", operator: "neq", value: true });
      }

(same iteration)

Old:
measure dsFilter 0.001200000002980232

New:
measure dsFilter 0.013800000000745058

Unfortunately, we cannot update directly to the latest version to test if it is better. This is because of styling braking changes which we have to address and other constraints that we have. We have to do it gradually.

Could you please advise what to do, since depending on the dataset size, filtering can last more than 7-8 seconds, and reseting filtering even longer. This basically renders the feature unusable. 

Thank you very much.

Regards, Vedad

My dataSource change handler is getting an event with with e.action set to itemLoaded, which is not one of the defined values in the API documentation.

I am wondering if this is a valid event action that I can target and the documentation is not correct, or if this is something else like a bug.

Here is a dojo. If you run it and expand the item, in the browser console you will see a couple events, the last of which is the itemLoaded event.