get BadWriteNotSupport when write node by indexRange

[stdh94sul3]

Hi Support Team,

I have some array nodes with setValueHandling(UaVariable_Value_CacheIsSource | UaVariable_Value_CacheIsUpdatedOnRequest).
As I use client to write these array node by indexRange, I get error BadWriteNotSupport.
Is any wrong here? Why? Thank you.

[Support Team]

Hello stdh94sul3,

if you set these flags you need to provide an implementation for readValues() and writeValues(). However the signature of writeValues() doesn't allow to pass in an IndexRange. That is why the combination of IndexRange and some ValueHandling options is rejected.
You'd need to implement our own IOManager to support this feature.
You find an example here:
http://documentation.unified-automation ... alSdk.html

Hint:
You can still keep your Nodemanager implementation. Just override NodeManagerUaNode::getIOManager and return your IOManager for the ValueAttribute.
Like that you can have the toolkit handle all other attributes (DisplayName, NodeId, ...) and just add special handling for the ValueAtrtibute.