XML Whitespace

[solex]

Hello,
Is there an easy way to add whitespace to an XML document? I am getting a
stream from a WebDAV request and would like to display it in a readable
fashion in a text box.

Thanks,
Dan

[Derek Harmon]

"solex" <so***@nowhere.com> wrote in message news:%2****************@TK2MSFTNGP11.phx.gbl...

Is there an easy way to add whitespace to an XML document?

Yes, write out the XML document into a String through an
XmlTextWriter with it's indenting turned on.

- - - XmlFormattedTextBox.cs (excerpt)
using System;
using System.IO;
using System.Text;
using System.Xml;
// . . .

// Create a string buffer and wrap it in a StringWriter (TextWriter)
// and XmlTextWriter (which needs a TextWriter to wrap).
//
StringBuilder stringBuf = new StringBuilder( );
StringWriter strWriter = new StringWriter( stringBuf);
XmlTextWriter xmlWriter = new XmlTextWriter( strWriter);

// Set formatting on the XmlTextWriter to indent.
//
xmlWriter.Formatting = Formatting.Indented;

// Write the XmlDocument containing the WebDAV request
// to the XmlTextWriter (it trickles down into the string buffer).
//
xmlDoc.WriteTo( xmlWriter);

// Set the TextBox's Text property to the String based on the
// string buffer that received the formatted XML serialization.
//
TextBox1.Text = stringBuf.ToString( );

// . . .
- - -
Derek Harmon

[solex]

Derek,

Thanks for your suggestion, I used it to work out the below is the VB. With
regard to my code I would like to further optimize it by removing the xrsp
object (XmlDocument), from my limited understanding of streams it appears
that I do not need this object but should be able to pipe the StreamReader
directly in the the XmlTextWriter but cannot determine the appropriate
methods, and suggestions?

Thanks Again,
Dan
Dim wproc As New WebDav
Dim rsp As System.Net.HttpWebResponse

Try
Me.txtXMLResponse.Text = "Sending Request ...."
rsp = wproc.ProcessRequest(Me.txtURI.Text, _
CStr(Me.cmbMethod.SelectedItem), txtXMLRequest.Text)

Dim xrsp As New Xml.XmlDocument
Dim sr As New System.IO.StreamReader(rsp.GetResponseStream)
xrsp.LoadXml(sr.ReadToEnd)
sr.Close()
sr = Nothing

Dim buf As New System.Text.StringBuilder
Dim read As New System.IO.StringWriter(buf)
Dim xw As New System.Xml.XmlTextWriter(read)
xw.Formatting = Xml.Formatting.Indented
xw.Indentation = 3
xrsp.WriteTo(xw)
xw.Close()
xw = Nothing
Me.txtXMLResponse.Text = buf.ToString
Catch ex As Exception
Me.txtXMLResponse.Text = ex.ToString
Finally
wproc = Nothing
If Not IsNothing(rsp) Then
rsp.Close()
rsp = Nothing
End If
End Try

"Derek Harmon" <lo*******@msn.com> wrote in message
news:%2****************@tk2msftngp13.phx.gbl...

"solex" <so***@nowhere.com> wrote in message

news:%2****************@TK2MSFTNGP11.phx.gbl...

Is there an easy way to add whitespace to an XML document?

Yes, write out the XML document into a String through an
XmlTextWriter with it's indenting turned on.

- - - XmlFormattedTextBox.cs (excerpt)
using System;
using System.IO;
using System.Text;
using System.Xml;
// . . .

// Create a string buffer and wrap it in a StringWriter (TextWriter)
// and XmlTextWriter (which needs a TextWriter to wrap).
//
StringBuilder stringBuf = new StringBuilder( );
StringWriter strWriter = new StringWriter( stringBuf);
XmlTextWriter xmlWriter = new XmlTextWriter( strWriter);

// Set formatting on the XmlTextWriter to indent.
//
xmlWriter.Formatting = Formatting.Indented;

// Write the XmlDocument containing the WebDAV request
// to the XmlTextWriter (it trickles down into the string buffer).
//
xmlDoc.WriteTo( xmlWriter);

// Set the TextBox's Text property to the String based on the
// string buffer that received the formatted XML serialization.
//
TextBox1.Text = stringBuf.ToString( );

// . . .
- - -
Derek Harmon

[Oleg Tkachenko [MVP]]

solex wrote:

Thanks for your suggestion, I used it to work out the below is the VB. With
regard to my code I would like to further optimize it by removing the xrsp
object (XmlDocument), from my limited understanding of streams it appears
that I do not need this object but should be able to pipe the StreamReader
directly in the the XmlTextWriter but cannot determine the appropriate
methods, and suggestions?

Not StreamReader, but XmlReader. Something like:

XmlReader r = new XmlTextReader(rsp.GetResponseStream());
StringWriter sw = new StringWriter();
XmlTextWriter w = new XmlTexWriter(sw);
w.Formatting = Formatting.Indented;
w.Indentation = 3;
while (r.Read())
w.WriteNode(r, false);
r.Close();
w.Close();
//Now use sw.ToString()

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[solex]

Oleg,

Thanks for your reponse, but how do you handle a multi-part response (from
WEBDAV). I have tried as you suggested but get an error stating that "there
is no XML start tag open."

I have tried creating a new XMLTextWriter and StringReader within the loop
but still get the above error.

Thanks,
Dan
"Oleg Tkachenko [MVP]" <oleg@NO!SPAM!PLEASEtkachenko.com> wrote in message
news:O1**************@TK2MSFTNGP09.phx.gbl...

solex wrote:

Thanks for your suggestion, I used it to work out the below is the VB. With regard to my code I would like to further optimize it by removing the xrsp object (XmlDocument), from my limited understanding of streams it appears that I do not need this object but should be able to pipe the StreamReader directly in the the XmlTextWriter but cannot determine the appropriate
methods, and suggestions?

Not StreamReader, but XmlReader. Something like:

XmlReader r = new XmlTextReader(rsp.GetResponseStream());
StringWriter sw = new StringWriter();
XmlTextWriter w = new XmlTexWriter(sw);
w.Formatting = Formatting.Indented;
w.Indentation = 3;
while (r.Read())
w.WriteNode(r, false);
r.Close();
w.Close();
//Now use sw.ToString()

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[Oleg Tkachenko [MVP]]

solex wrote:

Thanks for your reponse, but how do you handle a multi-part response (from
WEBDAV). I have tried as you suggested but get an error stating that "there
is no XML start tag open."

XmlReader is a reader for XML and multi-part isn't XML.

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[solex]

The response is a well-formed xml document, below is a sample. For some
reason the XMLReader is not reading the the root element and suggestions?

Thanks,
Dan

<?xml version="1.0"?>
<a:multistatus xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/"
xmlns:c="xml:" xmlns:a="DAV:">
<a:response>

<a:href>http://mailserver/Public/Private%20E...ommunications/
</a:href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>

<a:href>http://mailserver/Public/Private%20E...20Revocable%20
Trust/</a:href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>

<a:href>http://mailserver/Public/Private%20Equity/Deals/IDE%20and%20Co/</a:h
ref>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>

<a:href>http://mailserver/Public/Private%20Equity/Deals/ZXY%20Solutions/</a:
href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>

<a:href>http://mailserver/Public/Private%20E...Dan,%20Revocab
le%20Trust/</a:href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>

<a:href>http://mailserver/Public/Private%20E...st%20instituti
on/</a:href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>

<a:href>http://mailserver/Public/Private%20Equity/Deals/1381289%20Limited/</
a:href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
<a:response>
<a:href>http://mailserver/Public/Private%20Equity/Deals/SPAGO/</a:href>
<a:propstat>
<a:status>HTTP/1.1 200 OK</a:status>
<a:prop>
<a:isfolder b:dt="boolean">1</a:isfolder>
</a:prop>
</a:propstat>
</a:response>
</a:multistatus>
"Oleg Tkachenko [MVP]" <oleg@NO!SPAM!PLEASEtkachenko.com> wrote in message
news:Or*************@TK2MSFTNGP12.phx.gbl...

solex wrote:

Thanks for your reponse, but how do you handle a multi-part response (from WEBDAV). I have tried as you suggested but get an error stating that "there is no XML start tag open."

XmlReader is a reader for XML and multi-part isn't XML.

--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com

[Oleg Tkachenko [MVP]]

solex wrote:

The response is a well-formed xml document, below is a sample. For some
reason the XMLReader is not reading the the root element and suggestions?

The document seems to be ok and I'm sure XmlReader can read it well.
Make sure there is no anything just before <?xml version="1.0"?> - it
must be the very first thing in XML document (except for optional
Unicode BOM characters).
Otherwise provide more info about the error.
--
Oleg Tkachenko [XML MVP]
http://blog.tkachenko.com