Hi Avesh,

Thank you for suggesting this feature and providing implementation about it.

Another approach for auto-switching the tag modes is demonstrated in this Change Multiselect Tag Mode Based on the Number of Selected Items Knowledgebase article. The example demonstrates a modification of the provided logic in the context of the MultiSelect component. The code in the change function can be applied for the DropDownTree and the tagMode will be activated based on the number of the selected items in the DropDownTree.

At this time we let out clients switch the tagModes of the DropDownTree/MultiSelect components by implementing a custom logic similar to the one you've shared and the linked above Knowledgebase article. Your request is a valid one but I cannot say if and when it will be implemented. What you can do is to vote for the current feature request and based on the community interest on it and our priority queue, we might consider the implementation of the currently discussed functionality in the DropDownTree API.

Regards,
Petar
Progress Telerik