XslCompiledTran sform Load method getting "Root element is missing" XSL Compile error...???

[tony]

XslCompiledTran sform xslt = new XslCompiledTran sform();

ASCIIEncoding encodeToByteArr ay = new ASCIIEncoding() ;
MemoryStream inputStream = new MemoryStream();
MemoryStream outputStream = new MemoryStream();
MemoryStream xslStream = new MemoryStream();

String inputString = "<foo>Hello XSL</foo>";
byte[] inputArray =
encodeToByteArr ay.GetBytes(inp utString);
//write the string buffer to the stream
inputStream.Wri te(inputArray, 0, inputString.Len gth);

String xslString = "<xsl:styleshee t
xmlns:xsl=\"htt p://www.w3.org/1999/XSL/Transform\"
version=\"1.0\" ><xsl:templat e match=\"foo\">< out><xsl:value-of
select=\".\"/></out></xsl:template></xsl:stylesheet> ";
byte[] xslArray = encodeToByteArr ay.GetBytes(xsl String);

//write the string buffer to the stream
xslStream.Write (xslArray, 0, xslString.Lengt h);

xslt.Load(xslSt ream); <-- exception here

what's wrong?

here is xslString
<xsl:styleshe et xmlns:xsl="http ://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:template match="foo">
<out><xsl:val ue-of select="."/></out>
</xsl:template>
</xsl:stylesheet>

[tony]

crap figured it out..i didn't reset the stream back to the beginning =P

xslStream.Write (xslArray, 0, xslString.Lengt h);

xslStream.Seek( 0, SeekOrigin.Begi n);

xslt.Load(xslSt ream); <-- exception here

tony wrote:

XslCompiledTran sform xslt = new XslCompiledTran sform();

ASCIIEncoding encodeToByteArr ay = new ASCIIEncoding() ;
MemoryStream inputStream = new MemoryStream();
MemoryStream outputStream = new MemoryStream();
MemoryStream xslStream = new MemoryStream();

String inputString = "<foo>Hello XSL</foo>";
byte[] inputArray =
encodeToByteArr ay.GetBytes(inp utString);
//write the string buffer to the stream
inputStream.Wri te(inputArray, 0, inputString.Len gth);

String xslString = "<xsl:styleshee t
xmlns:xsl=\"htt p://www.w3.org/1999/XSL/Transform\"
version=\"1.0\" ><xsl:templat e match=\"foo\">< out><xsl:value-of
select=\".\"/></out></xsl:template></xsl:stylesheet> ";
byte[] xslArray = encodeToByteArr ay.GetBytes(xsl String);

//write the string buffer to the stream
xslStream.Write (xslArray, 0, xslString.Lengt h);

xslt.Load(xslSt ream); <-- exception here

what's wrong?

here is xslString
<xsl:styleshe et xmlns:xsl="http ://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:template match="foo">
<out><xsl:val ue-of select="."/></out>
</xsl:template>
</xsl:stylesheet>

[Martin Honnen]

tony wrote:

XslCompiledTran sform xslt = new XslCompiledTran sform();

ASCIIEncoding encodeToByteArr ay = new ASCIIEncoding() ;
MemoryStream inputStream = new MemoryStream();
MemoryStream outputStream = new MemoryStream();
MemoryStream xslStream = new MemoryStream();

String inputString = "<foo>Hello XSL</foo>";
byte[] inputArray =
encodeToByteArr ay.GetBytes(inp utString);
//write the string buffer to the stream
inputStream.Wri te(inputArray, 0, inputString.Len gth);

String xslString = "<xsl:styleshee t
xmlns:xsl=\"htt p://www.w3.org/1999/XSL/Transform\"
version=\"1.0\" ><xsl:templat e match=\"foo\">< out><xsl:value-of
select=\".\"/></out></xsl:template></xsl:stylesheet> ";
byte[] xslArray = encodeToByteArr ay.GetBytes(xsl String);

//write the string buffer to the stream
xslStream.Write (xslArray, 0, xslString.Lengt h);

xslt.Load(xslSt ream); <-- exception here

what's wrong?

The whole approach witht those memory streams is cumbersome and
unnecessary. If you have a string with XML (or XSLT) then simply use a
StringReader over that string and pass the StringReader or XmlReader
over that StringReader to the method e.g.
xslt.Load(XmlRe ader.Create(new StringReader(xs lString)));
You do not gain anything by wrestling with encodings, byte arrays and
streams, all those XML APIs consume XmlReader or even StringReader directly.
--

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/