Help with ABAP Structure to XML - Simple Transformation

Question

Hi guys,
I need help with a Simple Transformation. I am trying to convert a structure in ABAP to XML String but i ma getting short dumps...
Can any of you help.
Thanks in advance.
*& Report  ZTESTXML
REPORT  ZTESTXML.
class demo DEFINITION.
   PUBLIC SECTION.
   CLASS-METHODS main.
   ENDCLASS.
   CLASS demo IMPLEMENTATION.
     method main.
       data : begin of account,
                partner type bu_partner,
                primary(1),
                update(3),
                email(50),
                memberid(4),
                telephone(12),
                fax(10),
                dept(20),
                end of account.
        data : xmlstr type xstring.
                account-partner = '12345'.
                account-primary = 'N'.
                account-update = 'Yes'.
                account-email = 'zz at hotmail.com'.
                account-memberid = '555'.
                account-telephone = '123-448-6710'.
                account-fax = '345-123-7899'.
                account-dept = 'Info Systems'.
                call TRANSFORMATION ztest_inttable
                                    SOURCE account = 'account'
                                    result XML xmlstr.
       call FUNCTION 'DISPLAY_XML_STRING'
           EXPORTING xml_string = xmlstr.
       ENDMETHOD.
       ENDCLASS.
       start-of-SELECTION.
         demo=>main( ).
Transformation
<?sap.transform simple?>
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates">
  <tt:root name="account"/>
  <tt:template>
    <IGT_CRM_AccountInfo>
      <Account>
        <tt:ref name=".account">
          <tt:attribute name="Id" value-ref="PARTNER"/>
          <tt:attribute name="Primary" value-ref="primary"/>
          <tt:attribute name="Update" value-ref="update"/>
          <Contact>
            <tt:attribute name="EMail" value-ref="email"/>
            <tt:attribute name="Member Id" value-ref="memberid"/>
          </Contact>
          <Communications>
            <tt:attribute name="Telephone" value-ref="telephone"/>
            <tt:attribute name="Fax" value-ref="fax"/>
          </Communications>
          <IGT>
            <tt:attribute name="Department" value-ref="dept"/>
          </IGT>
        </tt:ref>
      </Account>
    </IGT_CRM_AccountInfo>
  </tt:template>
</tt:transform>
Dump message
An exception occurred that is explained in detail below.
The exception, which is assigned to class 'CX_ST_REF_ACCESS', was not caught in
procedure "MAIN" "(METHOD)", nor was it propagated by a RAISING clause.
Since the caller of the procedure could not have anticipated that the
exception would occur, the current program is terminated.
The reason for the exception is:
The goal was to access variable "PARTNER". However, this access was not
possible.

Answer 1

to convert abap itab or variable into xml string use ABAP key word call transformation.
call transformation (`ID`)
            source output = itab[]
            result xml xml_out.
where itab is your internal table or any abap variable.
xml_out is type string which will hold the resulting xml.
ID is the transformation program. if you wanto use your own transformation, use your XSLT or ST program there.
Raja