Echelon OpenLNS - Manual (Page 160)

OpenLNS Programmer's Reference 123
added to the API.
Comments This property allows the object type to be determined when it
is unknown (for example, when the object was accessed using
the Parent property of another object).
Count
Summary Returns the number of objects in a collection. You can use
this property to enumerate a collection object.
Availability Local, full, lightweight, and independent clients. Note that
some collection objects are not available to Independent
clients.
Syntax returnValue = object.Count
Element Description
returnValue The number of objects in the collection
as a long integer.
object The collection object to be acted on.
Data Type Long.
Read/Write Read only.
Added to API Depends on the object used to access the property. Generally,
this property exists for an object as soon as the object is
added to the API.
Comments This property is read only for Error objects.
FilterType
Summary Enables a subset of the items in the Channels collection to be
selected.
The filter property can be set to allow queries on selected
groups of objects in the Channels collection. Set the
FilterType property to the appropriate constant values before
accessing any objects in the collection.
You can
use RefChannel1 and RefChannel2 properties
included in the Channels object to help search a Channels
collection. These variants have meaning in the context of
particular filters.
To use channel filtering, a populated channel object must
first be obtained. For example:
Set AllChannels = Network.Channels
Set FilteredChannels = AllChannels
FilteredChannels.FilterType = lcaChannelFilterAdjacent
'Print list of channels adjacent to channel named "Room1".
'Assume PrintChannels ’function has been defined.
Set FilteredChannels.RefChannel1 = AllChannels.Item("Room1")
PrintChannels FilteredChannels
Availability Local, full, and lightweight clients.