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11:03, EET
January 27, 2012
Offline
Hi,
I was wondering if there is a way to use an own enum implementation, which extends Enumeration, as DataType for input argument of a method.
What I want to achieve is a way to allow e.g. “OK”, “NOK” as values for an input argument.
WIth DataType Boolean I only get a checkbox for setting the input value using UaExpert. What I want to see is a select box with my two defined options.
Is this possible? If yes, how to define this in Argument array?
Thanks.
Best regards
7:52, EET
December 21, 2011
Offline
Hi,
Yes, using a custom Enumeration as argument for a method is possible. SampleConsoleServer.createMyEnumNode() has a sample of adding your own Enumeration type. Then use the NodeId of your custom enumeration as the DataType of the argument (example of creating a custom method can be found in SampleConsoleServer.createMethodNode()). Using the latest version of UaExpert, you should see a drop-down of the possible values as input argument.
Best regards,
– Otso
9:03, EET
January 27, 2012
Offline
Hi Otso,
Thanks for your answer. I have the latest version. However, I can’t find method createMyEnumNode() in the SampleConsoleServer code!
I already created an enum which works and I also think I found my error. I tried to use the “public enum …” in setDataType(..) method instead of creating this enum as a DataType/Subtype of enumeration too.
However, also when I use my own EnumType I do not get Dropdown in UaExpert. Could you provide a short code snippet on how to do that?
That’s what I have done:
Argument[] inputs = new Argument[1];
inputs[0] = new Argument();
inputs[0].setName(“Input1”);
inputs[0].setDataType(myOwnEnumType.getNodeId());
inputs[0].setValueRank(ValueRanks.Scalar);
inputs[0].setArrayDimensions(null);
inputs[0].setDescription(new LocalizedText(“Value for Input1”, Locale.ENGLISH));
setMyMethod.setInputArguments(inputs);
where myOwnEnumType is defined as a UaDataTypeNode.
Best regards,
Fred
13:28, EET
December 21, 2011
Offline
The problems seems to be in the example type definition, if you followed the blog post sample.
The EnumStrings property must be defined as
PlainProperty enumStringsProperty = new PlainProperty(
myNodeManager, myEnumStringsId, new QualifiedName("EnumStrings"),
new LocalizedText("EnumStrings", LocalizedText.NO_LOCALE));
in order to define the BrowseName in namespace 0. The “default” constructor defines the BrowseName in the same namespace with the NodeId.
// WRONG
PlainProperty enumStringsProperty = new PlainProperty(
myNodeManager, myEnumStringsId, "EnumStrings",
LocalizedText.NO_LOCALE);
Since EnumStrings is a standard property, the BrowseName must be defined in the standard namespace.
SampleConsoleServer.createMyEnumNode() is not yet in the released SDK sample code (version 1.4.2).
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