How to using insert XML to XML file

[margus2009]

How to solve this problem?
My Default and load XML file is:

<?xml version="1.0" encoding="UTF-8"?>
<products> 
  <product> 
    <course id="SK-ENG-L1-NA-PE-NA-NA-Y-3.7.1.0.r29" levelIndex="1" titleKey="PE_ENG_1_course_title" language="en-US" resource="68cebc9173417426b9c277770e7aca3cc4847a03" encrypted="true"> 
    <installed>false</installed> 
</course> 
<activations> 
      <activation> 
        <productID>SK-ENG-L1-NA-PE-NA-NA-Y-3</productID> 
        <activationID/> 
        <deactivationID/> 
        <titleKey>PE_ENG_1_course_title</titleKey> 
        <courses> 
          <course>SK-ENG-L1-NA-PE-NA-NA-Y-3</course> 
        </courses> 
      </activation>
<activations>
   </product>
</products>

will insert XML file is:

<?xml version="1.0" encoding="UTF-8"?>
<course id="SK-ENG-L2-NA-PE-NA-NA-Y-3.7.1.0.r29" levelIndex="2" titleKey="PE_ENG_2_course_title" language="en-US" resource="f626f5187b2ba7417f822324f964238fb6c16719" encrypted="true">  
 <installed>false</installed> 
</course> 
<activations>
      <activation> 
        <productID>SK-ENG-L2-NA-PE-NA-NA-Y-3</productID> 
        <activationID/> 
        <deactivationID/> 
        <titleKey>PE_ENG_2_course_title</titleKey> 
        <courses> 
          <course>SK-ENG-L2-NA-PE-NA-NA-Y-3</course> 
        </courses> 
      </activation> 
</activations>

Result XML file is:

</course> 
<course id="SK-ENG-L2-NA-PE-NA-NA-Y-3.7.1.0.r29" levelIndex="2" titleKey="PE_ENG_2_course_title" language="en-US" resource="f626f5187b2ba7417f822324f964238fb6c16719" encrypted="true">  
 <installed>false</installed> 
</course> 
<activations> 
      <activation> 
        <productID>SK-ENG-L1-NA-PE-NA-NA-Y-3</productID> 
        <activationID/> 
        <deactivationID/> 
        <titleKey>PE_ENG_1_course_title</titleKey> 
        <courses> 
          <course>SK-ENG-L1-NA-PE-NA-NA-Y-3</course> 
        </courses> 
      </activation> 
<activation> 
        <productID>SK-ENG-L2-NA-PE-NA-NA-Y-3</productID> 
        <activationID/> 
        <deactivationID/> 
        <titleKey>PE_ENG_2_course_title</titleKey> 
        <courses> 
          <course>SK-ENG-L2-NA-PE-NA-NA-Y-3</course> 
        </courses> 
      </activation> 
</activations> 
  </product> 
</products>

I tried:

XML.Load(SessionVar.Expand("%WindowsFolder%\\01.xml"));
XML.InsertXML("products/product/course", "<course id=\"SK-ENG-L2-NA-PE-NA-NA-Y-3.7.1.0.r29\" levelIndex=\"2\" titleKey=\"PE_ENG_2_course_title\" language=\"en-US\" resource=\"f626f5187b2ba7417f822324f964238fb6c16719\" encrypted=\"true\">\r\n<installed>false</installed>\r\n</course>", XML.INSERT_AFTER);
XML.InsertXML("products/product/activations/activation", "<activation>\r\n<productID>SK-ENG-L2-NA-PE-NA-NA-Y-3</productID>\r\n<activationID/>\r\n<deactivationID/>\r\n<titleKey>PE_ENG_2_course_title</titleKey>\r\n<courses>\r\n<course>SK-ENG-L2-NA-PE-NA-NA-Y-3</course>\r\n</courses>\r\n</activation>", XML.INSERT_AFTER);
XML.Save(SessionVar.Expand("%WindowsFolder%\\rsapp3\\products1.xml"));

But not changed 01.xml file

[Ulrich]

1. You cannot manipulate UTF-8 encoded text files with Lua, and they may not load properly.
2. There is an <activations> instead of </activations> in your initial XML, causing a nesting error and resulting in an error during load.
3. Use proper error checking to make your life easier.

Ulrich

[margus2009]

How to error checking ?

[Ulrich]

How to properly check for errors is shown extensively in the documentation.

Ulrich

[margus2009]

I tried:

XML.Load(SessionVar.Expand("%WindowsFolder%\\01.xml"));
-- Check whether an error occurred
error = Application.GetLastError();
-- If no errors occurred...
if (error == XML.OK) then
    -- get the current XML document as a string
    strXML = XML.GetXML();
    
    -- if no errors occurred, display the XML in a popup dialog
    error = Application.GetLastError();
    if (error == XML.OK) then
        Dialog.Message("XML contents",strXML);
    else
        Dialog.Message("Error", _tblErrorMessages[error]);
    end
else    
    Dialog.Message("Error", _tblErrorMessages[error]);
end
XML.InsertXML("products/product/course", "<course id=\"SK-ENG-L2-NA-PE-NA-NA-Y-3.7.1.0.r29\" levelIndex=\"2\" titleKey=\"PE_ENG_2_course_title\" language=\"en-US\" resource=\"f626f5187b2ba7417f822324f964238fb6c16719\" encrypted=\"true\">\r\n<installed>false</installed>\r\n</course>", XML.INSERT_AFTER);
XML.InsertXML("products/product/activations/activation", "<activation>\r\n<productID>SK-ENG-L2-NA-PE-NA-NA-Y-3</productID>\r\n<activationID/>\r\n<deactivationID/>\r\n<titleKey>PE_ENG_2_course_title</titleKey>\r\n<courses>\r\n<course>SK-ENG-L2-NA-PE-NA-NA-Y-3</course>\r\n</courses>\r\n</activation>", XML.INSERT_AFTER);
XML.Save(SessionVar.Expand("%WindowsFolder%\\rsapp3\\products1.xml"));

But not changed 01.xml file saved products1.xml and no message error checking. How to solve this problem Help me