Hi all, somehow i stumbled into this problem today, and cant seem to fix it.

Situation:
EWS 1.1
Exchange 2007 SP3
.NET4 VS2010 SP1

Two normal accounts, no delegation/impersonation.
User A has Author permissions to user B calendar folder. User A wants to delete all appointments he has delete rights for.

// setup calendarview
CalendarView calendarView = new CalendarView(DateTime.Today, DateTime.Today.AddMonths(1));
calendarView.PropertySet = new PropertySet(ItemSchema.ItemClass, ItemSchema.EffectiveRights, ItemSchema.Categories);

//the actual ews call
FindItemsResults<Appointment> findResults = CalendarFolder.Bind(service, calendarFolderId).FindAppointments(calendarView);

foreach (Appointment appointment in findResults.Items)
{
    if (appointment.EffectiveRights.HasFlag(EffectiveRights.Delete))
    {
        // normally you would delete the appointments here
    }
    else
    {
        // i would expect i cannot delete the appointment here, in fact i can. That makes this effectiverights property useless    
    }
}

    

Somehow the EffectiveRights flag is ALWAYS set to 'Read'.

I just want to be sure that if i delete an appointment, i actually have the rights to do that.

The response XML shows the effective rights, that only has read set to true while i expect delete to be true asswell :
               

<t:CalendarItem>                  
  <t:ItemId Id="{id}=" ChangeKey="DwAAABYAAACiMyJAq8rTRpj8V9OP3cCLAC+MueIa" />
  <t:ItemClass>IPM.Appointment</t:ItemClass>
  <t:Categories>
    <t:String>Digirooster</t:String>
  </t:Categories>
  <t:EffectiveRights>
    <t:CreateAssociated>false</t:CreateAssociated>
    <t:CreateContents>false</t:CreateContents>
    <t:CreateHierarchy>false</t:CreateHierarchy>
    <t:Delete>false</t:Delete>
    <t:Modify>false</t:Modify>
    <t:Read>true</t:Read>
  </t:EffectiveRights>                
</t:CalendarItem>

Anyone? This problem is nagging...

Hi wnnb,

although this is already quite old I wanted to share a solution to your problem because we just solved this problem aswell.

The appointment-object alwas has the EffectiveRight-Attribute set to "Read" but not the underlying Item-Object. You can retrieve the item like this:

var item = Item.Bind(service, appointment.Id);
if (item.EffectiveRights.HasFlag(EffectiveRights.Delete))
{
// Delete Rights present
} else {
// No rights to delete
}

Kind regards,
Thomas Frhle
App-Developer-Hotline for MSDN Online Germany

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