NGNaganathan Ganesh Babu Syncfusion Team November 1, 2019 01:32 AM
We suggest you to use diagram’s “dragEnter” events to find the node to drag to the diagram space. Also, use dragEnter evtArgs “Cancel” property to cancel the node to adding into the diagram space. Please refer to the below our online UG documentation link and sample.
If we misunderstood your requirement, please share us more information about your requirement probably a video/screenshot of the requirement, which will help us to analyze further and provides a better solution.
Naganathan K G
SASaiSravyaNovember 1, 2019 02:04 AM
Could you please send me some examples for the link you have provided?
SGShyam G Syncfusion Team November 3, 2019 08:24 PM
Please look into the below code example to define dragEnter event. This event triggers when a dragged node from palette with mouse enters a diagram.