I use Scheduler version 8.1.3469,
and got exception on second command with selected events.
Server data cannot be deserialized in JS because of content is exception call stack.
System.Object cannot be cast to System.String.
The only one difference I found is dps.SelectedEvents Tags are nulls.
I workaround problem by clear selected events list on server side.
There is some problem with serialising Sheduler response when Selected Events are exists.
Does it happen with the latest version as well (8.1.3502)?
Serialization of tags with null value has been fixed in 8.1.3484 so it shouldn't be a problem anymore:
http://www.daypilot.org/daypilot-pro-for-asp-net-webforms-8-1-sp5/
Let me know if the issue persists.
This question is more than 1 month old and has been closed. Please create a new question if you have anything to add.
DayPilot