(MFC) Remove an XML Subtree

Demonstrates how to remove an XML subtree from an XML document.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkXml.h>

void ChilkatSample(void)
    {
    CkString strOut;

    CkXml xml;

    bool success = xml.LoadXmlFile("qa_data/xml/osszes.xml");

    // The XML file we're loading contains this:

    // <?xml version="1.0" encoding="iso-8859-2" ?>
    // <EXAMPLE>
    //     <OSSZES>
    //         <ROW TYPE="INS">477953
    //             <NUMBER>05107003972</NUMBER>
    //         </ROW>
    //         <ROW TYPE="INS">477954
    //             <NUMBER>05107001342</NUMBER>
    //         </ROW>
    //         <ROW TYPE="INS">477955
    //             <NUMBER>05107001342</NUMBER>
    //         </ROW>
    //         <ROW TYPE="INS">477956
    //             <NUMBER>05107000017</NUMBER>
    //         </ROW>**
    //         <ROW TYPE="INS">477957
    //             <NUMBER>05107002182</NUMBER>
    //         </ROW>
    //     </OSSZES>
    // </EXAMPLE>
    // 

    // We wish to remove this subtree:

    // <ROW TYPE="INS">477956
    //     <NUMBER>05107000017</NUMBER>
    // </ROW>

    // Get another reference to the XML document.
    CkXml *xml2 = xml.GetSelf();

    // Navigate to the node that is the root of the subtree to be deleted.
    // In this case, we wish to find the node having tag "ROW" with content "477956"
    const char *notUsed = xml2->chilkatPath("OSSZES|/C/ROW,*477956*|$");

    // Examine the xml2, it should be just the subtree.
    strOut.append(xml2->getXml());
    strOut.append("\r\n");

    // Now detach xml2 from the it's XML document.
    // xml2 will now be it's own XML document.
    xml2->RemoveFromTree();

    // Examine our original XML document.  The subtree is removed:
    strOut.append(xml.getXml());
    strOut.append("\r\n");

    delete xml2;


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }