Echelon OpenLNS - Manual (Page 615)

OpenLNS Programmer's Reference 578
options.
Availability Local, full, and lightweight clients.
Syntax object.DsRestoreOptions
Element Description
object The NetworkVariable object to be acted
on.
Added to API Prior to LNS Release 3.0.
DsSaveOptions
Summary Saves the current set of data server options to the persistent
database .
Data server options are not persistent for NetworkVariable
objects. For new option values to persist across data object
instantiations, you must invoke the DsSaveOptions method.
This method saves the values which were most recently set,
not the values currently in use. This distinction arises
because the data server must be paused and restarted before
modified options can take affect.
This method will save all NetworkVariable data server
options.
Availability Local, full, and lightweight clients.
Syntax object. DsSaveOptions
Element Description
object The NetworkVariable object to be acted
on.
Added to API Prior to LNS Release 3.0.
GetDataPoint
Summary Returns a DataPoint object that you can use to read or write
to the value of the network variable .
You should use data points to read and write to the values of
your network variables. The reason for this is that when you
create a data point with the GetDataPoint method, your
application will have sole access to that data point, and it will
manage the format of the data contained in the network
variable locally. As a result, it will avoid misinterpreting any
formatting changes that may be made to a network variable’s
value by other client applications.
Note: The Value property, which was used previously to read
and write network variables, was deprecated in LNS Release
3.20.
Availability Local, full, and lightweight clients.