is it possible intersect appointment move simultaneously

[rajesh]

while we move one appointment, it may overlap other one, instead of overlapping we need to move that also synchronised with initial one. is this feature available in  schedule view?

[Yana]

Hello Rajesh,

RadScheduleView doesn't support such functionality out of the box.   You can try to implement it with a custom DragDropBehavior. More information about it can be found here.

You can find the existing appointments in Drop method like this:

public override void Drop(Telerik.Windows.Controls.DragDropState state)
{
    var res = state.DestinationSlots.SelectMany(sl => state.DestinationAppointmentsSource
                .OfType<IAppointment>()
                .Where(a => this.AreOverlapping(a, sl) && !state.DraggedAppointments.Contains(a)));
    base.Drop(state);
}

and AreOverlapping and AreIntersected methods are defined like this:

private static bool AreIntersected(IEnumerable<IResource> first, IEnumerable<IResource> other)
{
    IEnumerable<IResource> firstResources = first
        .Distinct();

    IEnumerable<IResource> otherResources = other
        .Distinct();

    return firstResources.Where((IResource r) => otherResources.Contains(r)).Count() == firstResources.Count();
}

private bool AreOverlapping(IAppointment appointment, Slot slot)
{
    return appointment.IntersectsWith(slot) && AreIntersected(appointment.Resources.OfType<IResource>(), slot.Resources.OfType<IResource>());

}

Please try it and if you have any difficulties, write to us again.

Kind regards,
Yana
the Telerik team