XML Automation

navinb

Hi ,

I am trying to export records in xml format with automation but it is breaking on below code :


XMLRoot := XMLDoc.documentElement;
XMLNode := XMLRoot.ownerDocument.createNode('element', 'TableRecord', '');
XMLRoot.appendChild(XMLNode);

System is throwing an error that automation variable is not instantiated .Please suggest what i am missing here

Thanks in advance !!

deepaknav

Please check if you have created all the automation variables you are using.

navinb

Following variables are declared :

Name DataType Subtype Length
XMLDoc Automation 'Microsoft XML, v3.0'.DOMDocument
XMLRoot Automation 'Microsoft XML, v3.0'.IXMLDOMNode
XMLNode Automation 'Microsoft XML, v3.0'.IXMLDOMNode

And XMLDoc is created.

BardurKnudsen

Have you tried the simple solution just to write XMLDoc.createNode(...);?

navinb

Yes even that throws the same error :"automation error is not intialised"

BardurKnudsen

Have you studied the patterne elsewhere in the application, e.g. REPORT 505 where an xml document is built up from scratch?

Tommy_Schou

Not quite sure what you are doing but in case it is any help here is a very simple way to create a 2 tag XML document using automation:

IF ISCLEAR(XMLDoc) THEN
  CREATE(XMLDoc);

NewNode := XMLDoc.createNode(1,'DocumentElementNode','NameSpaceURI');
XMLDoc.appendChild(NewNode);

CurrNode := NewNode;

NewNode := XMLDoc.createNode(1,'TableRecord','NameSpaceURI');
NewNode.text := 'TestData';

CurrNode.appendChild(NewNode);

XMLDoc.save('c:\tmp\test.xml');

Be advised that the error: "Automation has not been instantiated" or something to that effect can also arise when you try to select a tag in an XML document if that tag is not present. Not a very descriptive error to give but if Ie. you try to select a non-existent tag name <ThisTagIsNotInTheXML> then you will not be told that the tag does not exist. Instead you will get an Automation error if you try to use the Node without first checking with ISEMPTY if a node was actually returned.

kriki

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