Confirmation prompt of event resize or event move

You can find an example in the documentation, Event Moving page (expand the ASP.NET WebForms section to see it):

<DayPilot:DayPilotScheduler runat="server" id="DayPilotScheduler1"
  ...
  
  ClientObjectName="dps"
  EventMoveHandling = "JavaScript"
  EventMoveJavaScript="if (confirm('Do you really want to move this event?')) { dps.eventMoveCallBack(e, newStart, newEnd, newResource); } "
  OnEventMove="DayPilotScheduler1_EventMove" 
/>

The default client object name is derived from the control ID. In most cases, it is the control ID but if you use a complex layout, it may include parent IDs. That’s why it is recommended to specify it explicitly using the ClientObjectName property.

thank you for your response, i have tried this and the code will not build if i make this change. The control’s ID is not recognized anymore, should i replace it with the clientobjactname in the code?

Yes, if you specify ClientObjectName you need to use this identifier in the JavaScript code.

can you provide with a full sample? how would you change the code behind? i tried this and it’s not working

The configuration printed above is all that is required.

No changes are required on the server side. The eventMoveCallBack() method invokes the server-side EventMove event.

thank you i managed to get it to work following your suggestion