Hi Zeng,
Thank you for contacting Syncfusion support.
We don’t have inbuild onwheel event support for multiselect component. However, you can bind the native onwheel event for popup element in the open event. Please refer the below code snippet,
Code Snippet
onOpen(args){
args.popup.element.addEventListener('wheel',function(){
console.log("Mouse wheel event");
})
} |
Could you please check the above details and get back to us, if you need any further assistance on this?
Regards,
Vinoth Kumar S