Question

I got an Xml file fileOri.xml and there are some lines like

<SubItem name='somename' value='someVal'></SubItem>

and I plan to copy these lines to another file fileDes.xml. Is there a rapidly & easily way?

Answer 1

Adding to Rajs answer, here’s how you can do it using Transform:

The code

XmlTextReader reader = new XmlTextReader("C:\\fileOri.xml");
XmlTextWriter writer = new XmlTextWriter("C:\\fileDes.xml", Encoding.UTF8);
XslCompiledTransform transform = new XslCompiledTransform();
transform.Load("C:\\MyStylesheet.xslt");
transform.Transform(reader, writer);

The Stylesheet

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="/">
        <!-- define the root element for your destination document -->
        <xsl:element name="root">
            <xsl:apply-templates />
        </xsl:element>
    </xsl:template>

    <xsl:template match="//SubItem">
        <xsl:copy-of select="." />
    </xsl:template>

</xsl:stylesheet>

Doing it via Transformation gives you the flexibility to change the content you like to copy without touching the executable in the future – just modify the Xslt to your needs.

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Hint

Your question suggests that you probably rather want a flat text file with line items for further processing – in that case you can still use Xslt but with text output.