'Declaration Public Property AllowContactsMultiSelection As System.Boolean
public System.bool AllowContactsMultiSelection {get; set;}
'Declaration Public Property AllowContactsMultiSelection As System.Boolean
public System.bool AllowContactsMultiSelection {get; set;}
If both AllowContactsMultiSelection and AllowContactsEditing properties are false, the default Appointment dialog will show ComboBox for selecting single Contact object.
If this property is true, the default Appointment dialog will allow selecting multiple contacts in a separate dialog.