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Create XML and write to file in Dynamics AX

24 Nov

In this post let’s explore creating XML using X++ code in Dynamics AX. The following example shows how to create and write data to an XML file by using the XmlDocument, XmlElement, and XmlWriter classes. It loops through all of the records in the CarTable and find all the fields in the table automatically by using the DictTable and DictField classes.

 
 

static void WriteXml(Args _args)

{

XmlDocument xmlDoc;

XmlElement xmlRoot;

XmlElement xmlField;

XmlElement xmlRecord;

XMLWriter xmlWriter;

CarTable carTable;

DictTable dTable = new DictTable(tablenum(CarTable));

DictField dField;

int i, fieldId;

str value;

 
 

#CarsXmlTags

 
 

// Create a new object of the XmlDocument class

xmlDoc = XmlDocument::newBlank();

 
 

// Create the root node

xmlRoot = xmlDoc.createElement(#CarRootNode);

 
 

// Loop through all the records in the carTable

while select carTable

{

// Create a XmlElement (record) to hold the

// contents of the current record.

xmlRecord = xmlDoc.createElement(#CarRecords);

 
 

// Loop through all the fields in the record

for (i=1; i<=dTable.fieldCnt(); i++)

{

// Get the fieldId from the field-count

fieldId = dTable.fieldCnt2Id(i);

 
 

// Find the DictField object that matches the fieldId

dField = dTable.fieldObject(fieldId);

 
 

// Skip system fields

if (dField.isSystem())

continue;

 
 

// Create a new XmlElement (field) and

// have the name equal to the name of the

// dictField

xmlField = xmlDoc.createElement(dField.name());

 
 

// Convert values to string. I have just added

// a couple of conversion as an example.

// Use tableName.(fieldId) instead of fieldname

// to get the content of the field.

switch (dField.baseType())

{

case Types::Int64 :

value = int642str(carTable.(fieldId));

break;

case Types::Integer :

value = int2str(carTable.(fieldId));

break;

default :

value = carTable.(fieldId);

break;

}

 
 

// Set the innerText of the XmlElement (field)

// to the value from the table

xmlField.innerText(value);

 
 

// Append the field as a child node to the record

xmlRecord.appendChild(xmlField);

}

 
 

// Add the record as a child node to the root

xmlRoot.appendChild(xmlRecord);

}

 
 

// Add the root to the XmlDocument

xmlDoc.appendChild(xmlRoot);

 
 

// Create a new object of the XmlWriter class

// in order to be able to write the xml to a file

xmlWriter = XMLWriter::newFile(@”c:\temp\cars.xml”);

 
 

// Write the content of the XmlDocument to the

// file as specified by the XmlWriter

xmlDoc.writeTo(xmlWriter);

}

 
 

The file that is created looks like the one in the following screenshot(only first part of the file is shown):

 
 

 
 

As you can see, this file is based on a standard XML format with tags and values only. You can, however, use tag attributes as well. To put the values from the table into tag attributes instead of their own tags, simply change the following code snippet in the example above

 
 

// Set the innerText of the XmlElement (field)

// to the value from the table

xmlField.innerText(value);

 
 

// Append the field as a child node to the record

xmlRecord.appendChild(xmlField);

 
 

With these lines:

 
 

// Add the attribute to the record

xmlRecord.setAttribute(dField.name(), value);

 
 

The file that is created now looks like the one in the following screenshot:

 
 


 
 

Thanks for reading, keep visiting the blog!

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5 Comments

Posted by on November 24, 2010 in AX, Dynamics, X++, XML

 

Tags: ,

5 responses to “Create XML and write to file in Dynamics AX

  1. saurabh

    July 5, 2011 at 11:22 am

    Can u plz tell me.. how import xml document like last screenshot file into AX…….
    thanks in advance

     
  2. atul jain

    November 27, 2012 at 2:02 pm

    I want to iterate xml file and validate for starting tag and ending tag.
    Please try to help me in that scenario

     
    • atul jain

      November 28, 2012 at 7:33 am

      xmlRoot = getNamedElement(#CarRootNode)in
      that what is (#CarRootNode) how can i use that a general scenario.

       
  3. Sam

    March 13, 2013 at 9:45 pm

    Just wanted to say nice sample; I was trying to do something similar with the buffer.Xml() method and was having formatting issues. Knew I’d end up having to use dictionaries…and got lucky with your sample for saving some time.

     

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