XMLPORT:Skip Empty Tags

pgroppuso · 2007-04-27

Good Morning.
does anyone know how to skip empty tags when exporting with a XmlPort?
I tryed to do that setting the MinOccurs property of the element to zero but does'nt work.
It's a great problem form me because my commitment don't accept empty tags.
Can somebody help me?
Thanks for all.

bluesky29 · 2007-06-05

Hi,

i had the same problem. solved it like that:

DeleteEmptyXMLNodes(VAR XMLNode : Automation "'Microsoft XML, v3.0'.IXMLDOMNode")
IF XMLNode.nodeTypeString = 'element' THEN BEGIN
IF (XMLNode.hasChildNodes = FALSE) THEN BEGIN
IF (XMLNode.xml = '<' + XMLNode.nodeName + '/>') THEN
XMLNode := XMLNode.parentNode.removeChild(XMLNode)
END ELSE BEGIN
XMLDomNodeList := XMLNode.childNodes;
FOR i := 1 TO XMLDomNodeList.length DO BEGIN
XMLChildNode :=XMLDomNodeList.nextNode();
DeleteEmptyXMLNodes(XMLChildNode);
END;
END;
END;

following local variables:
XMLChildNode Automation 'Microsoft XML, v3.0'.IXMLDOMNode
XMLDomNodeList Automation 'Microsoft XML, v3.0'.IXMLDOMNodeList
i Integer

you can use it with an existing xml-document like that:

CurrNode Automation 'Microsoft XML, v3.0'.IXMLDOMNode

CurrNode := XMLDOMDocument.documentElement;
DeleteEmptyXMLNodes(CurrNode);

hope this helps.

DenSter · 2007-06-05

Cool, that should go into the Tips and Tricks area.

snyktp · 2009-04-21

Hello

I am trying this but I dont understand what taht is ;CurrNode := XMLDOMDocument.documentElement;

Thank you

DenSter · 2009-04-21

The documentelement is the root element of the XML document. CurrNode is the node that you are currently looking at. That code puts the root element of the XML document into the CurrNode variable

axxion · 2011-06-21

Hi All,

I followed exactly these instructions.

In the XML port, at the OnPostXMLport() trigger I call:

CurrNode := XMLDOMDocument.documentElement;
DeleteEmptyXMLNodes(CurrNode);

The function DeleteEmptyXMLNodes(CurrNode); is also in the XML port.

The XML port compiles well but during running I get the error (translated):

This message is for C/AL programmers:

Could not create a working copy of the Automation variable.
You can create a working copy by creating a variable or applying.

I reinstalled the client, NAV 4.0 SP3 native, with all options.
I reinstalled MSXML 3.0 SP7.
Tried also XML 4.0 and 6.0 but no improvement. ](*,)
Any suggestions?

InfoWissler · 2013-01-07

I used the code provided by bluesky29 for two years (was used only in the beginning of every year but very often then) and now I have the same problem as axxion (Post above).

I tried the code with the help of following builds:

NAV-Build SQL-Build Works
32275 (R2) 10.5…… (R2) No
31671 10.5…. (R2) No
32275 (R2) 10.0…. No
31671 10.0…. Yes

My theory was that it is a problem with some Update in late 2012, but if this problem already occurred in 2007 (axxion), it seems to be something different. Has anybody any ideas? I doublechecked the NAV objects in the above databases.

(I do not use the code directly in an xmlPort, but I save a xmlport-Export as a BLOB in a table; later I load the BLOB in a xmldom Document - Variable; after that, I go on with the proposed code)

edit: okay the reason has to be that I mess up my BLOB in my table somehow, because it only fails when I try to process the BLOB more than once.

Alkro · 2014-07-14

bluesky29 wrote:

DeleteEmptyXMLNodes(VAR XMLNode : Automation "'Microsoft XML, v3.0'.IXMLDOMNode")
IF XMLNode.nodeTypeString = 'element' THEN BEGIN
IF (XMLNode.hasChildNodes = FALSE) THEN BEGIN
IF (XMLNode.xml = '<' + XMLNode.nodeName + '/>') THEN
XMLNode := XMLNode.parentNode.removeChild(XMLNode)
END ELSE BEGIN
XMLDomNodeList := XMLNode.childNodes;
FOR i := 1 TO XMLDomNodeList.length DO BEGIN
XMLChildNode :=XMLDomNodeList.nextNode();
DeleteEmptyXMLNodes(XMLChildNode);
END;
END;
END;

I tried this code but the result of .xml file was:

<PstlAdr> 
    <StrtNm>STREET, 1</StrtNm>
    <PstCd>01234</PstCd>
    <TwnNm>TOWN</TwnNm>
    <Ctry/>
</PstlAdr>

See <Ctry/> Node... Strange!!!

How can i skip Empty Nodes, and how a particular Node, for example only "Ctry" empty nodes. I suppose asking about XMLNode.nodeName = 'Ctry' but i have same result...

Actually result is:

<Cdtr>
   <Nm>NAME</Nm>
   <PstlAdr>
      <TwnNm/>
   </PstlAdr>
</Cdtr>

But i need this format:

<Cdtr>
   <Nm>NAME</Nm>
   <PstlAdr>
   </PstlAdr>
</Cdtr>

:roll:

BR

jordi79 · 2014-12-23

Hi,

I am trying to use this function to remove empty XML Tags on NAV2013. So I have changed everything from automation to DotNet. But I am facing a problem whereby I cannot parse the XMLNode to the function DeleteEmptyXMLNodes().

Error Message is:

Microsoft Dynamics NAV

A DotNet variable has not been instantiated. Attempting to call MSXML.IXMLDOMNode.nodeTypeString in Report SI: XML Invoice Export: DeleteEmptyXMLNodes

OK

Main Body CU...

XMLDomDocument := XMLDomConstructor.DOMDocumentClass;
XMLDomDocument.loadXML(ServerFileName);
CurrNode := XMLDomDocument.documentElement;

DeleteEmptyXMLNodes(CurrNode);
XMLDomDocument.save(ServerFileName);

DeleteEmptyXMLNodes function...

DeleteEmptyXMLNodes(VAR XMLNode : DotNet "MSXML.IXMLDOMNode")
IF XMLNode.nodeTypeString = 'element' THEN BEGIN 
  IF (XMLNode.hasChildNodes = FALSE) THEN BEGIN 
    IF (XMLNode.xml = '<' + XMLNode.nodeName + '/>') THEN 
      XMLNode := XMLNode.parentNode.removeChild(XMLNode) 
    ELSE BEGIN 
      XMLDomNodeList := XMLNode.childNodes; 
      FOR i := 1 TO XMLDomNodeList.length DO BEGIN 
        XMLChildNode :=XMLDomNodeList.nextNode(); 
        DeleteEmptyXMLNodes(XMLChildNode); 
      END; 
    END;
  END; 
END;

hitt123 · 2020-12-10

The easy way is to use CurrXMLport.skip insinde the Export::OnBeforePassVariable() trigger. If MyNode = '' then CurrXmlPort.Skip and the node is not created.

weneed · 2022-03-10

hitt123 wrote: »

The easy way is to use CurrXMLport.skip insinde the Export::OnBeforePassVariable() trigger. If MyNode = '' then CurrXmlPort.Skip and the node is not created.

This work great but not with tableelement. For tableelement there is not OnBeforePassVariable trigger.
There is a work around? I need a solution for SaaS..

XMLPORT:Skip Empty Tags

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