Lazy Load for node parents

Question

Hi Synfusion team,

I have a query, I am currently working with a large amount of data which we have grouped and implemented in a DropdownTree, I would like to know if Is there a way to apply LazyLoading for node parents just as the loadOnDemand property does for children?

The dropdowntree has at least about 300 groups and each group has at least about 100 items, by expanding each parent node the lazy loading works fine for the child nodes, but I need that same behavior initially with the parent nodes

Additionally, I would like to tell you that I disabled the other groups, since we limited the selection of items

Prasanth Madhaiyan · Accepted Answer

Hi Alberto,From the shared details, we understand that you want
virtualization support for the Dropdown Tree component. We would like to let
you know that, currently, we don’t have that support in the React Dropdown Tree
component.We have considered this as a feature on our end and it will
be included in any of our upcoming releases. Generally, we will plan any
feature implementation based on customer request count, feature rank, and
Wishlist plan.The status of this feature can be tracked through our
feedback portal below.Feedback: https://www.syncfusion.com/feedback/45099/provide-the-virtualization-support-for-the-dropdown-tree-componentPlease let us know if you need any further assistance.Regards,Prasanth Madhaiyan.

Prasanth Madhaiyan · Answer

Hi Alberto,Greetings from Syncfusion support.We have validated your reported query regarding the Angular
Dropdown Tree component. Based on the details you provided, it seems that you
are requesting lazy loading for parent nodes in the Dropdown Tree component.
Currently, the default behavior is to render the parent nodes on the initial
load. Therefore, the loadOnDemand property is only applicable to the
child nodes in the Dropdown Tree component.Please let us know what kind of difficulties you are facing
with the parent nodes when rendering 300 nodes. Based on that, we will assess
the issue and provide you further details. Provide us with the requested
information.Regards,Prasanth Madhaiyan.

Alberto Torres · Answer

HiWell what I was trying to know is if the component has support for virtualization or infinite scroll, because in the initial load of the main nodes there is a delay, the number of main nodes on occasions exceeds 300 for this reason I would like to have the advantages of virtualization.Thanks.