event-calendar-external-drag-drop.png

DayPilotCalendar supports drag&drop from an external source (from outside of the calendar control).

This feature is useful for implementing the following scenario:

  • The calendar shows current time schedule.
  • Separate list of events that are not yet scheduled. 
  • The unscheduled events can be dragged to the calendar.

Drag Source

You should activate the element to be dragged by adding the following attribute:

onmousedown='return DayPilotCalendar.dragStart(this.parentNode, 60*30, "123", this.innerHTML);'

It's better to add it to an inline element (<span>) rather than a block element (<div>, <li>) because block elements would become drag-sensitive in all the width (100%) and not just on the text

The dragStart parameters are as follows:

DayPilotCalendar.dragStart(elementToBeRemoved, durationInSeconds, 
valueToBePassedToMoveEvent, textToBePassedToMoveEvent);

After dropping the object the standard EventMove event is triggered (handling specified by EventMoveHandling). If you decide to handle it on the client side using JavaScript, you can detect the external source by checking the external variable (external is false when the event was dragged from another location inside the calendar):

ASP.NET WebForms

EventMoveJavaScript="if (external) { alert('External drag&drop detected.'); } 
dpc1.eventMoveCallBack(e, newStart, newEnd, oldColumn, newColumn);"

See also

ASP.NET MVC

External drag&drop can be detected using "external" variable:

EventMoveJavaScript="if (external) { alert('external source detected'); } dpc.eventMoveCallBack(e, newStart, newEnd);"

See also: