Can I make this document format correctly?

[Brad Wood]

I need to build a document by adding sub docs to it. When I do so, I
lose formatting. I've tried a suggestion I saw of simply setting the
formatting a second time to no avail.

Following is a console snippet that demonstrates the problem:

static void Main( string[] args )
{
StringWriter sw = new StringWriter();
XmlTextWriter xw = new XmlTextWriter( sw );
xw.Formatting = Formatting.Indented;

StringWriter sw2 = new StringWriter();
XmlTextWriter xw2 = new XmlTextWriter( sw2 );
xw2.Formatting = Formatting.Indented;

xw.WriteStartDocument();
xw.WriteStartElement( "Parent" );
xw.WriteStartElement( "ParentInner" );
xw.WriteString( "hi mom" );
xw.WriteEndElement();

xw2.WriteStartDocument();
xw2.WriteStartElement( "Child" );
xw2.WriteStartElement( "ChildInner" );
xw2.WriteString( "hi again" );
xw2.WriteEndElement();
xw2.WriteEndElement();
xw2.WriteEndDocument();

xw.WriteRaw( sw2.GetStringBuilder().ToString() );
xw.WriteEndElement();
xw.WriteEndDocument();

using(StreamWriter streamW = new StreamWriter(@"d:\test.xml", false ))
{
streamW.Write( sw.GetStringBuilder().ToString() );
}

xw.Close();
xw2.Close();
}

[Truong Hong Thi]

Hi Brad,

The XmlTextWriter maintains several fields to keep track of identation
level and whether a new line is needed. Everything works well as long
as you call only methods like WriteStartElement and WriteEndElement.
However, when you call WriteRaw, the writer does not attempt to parse
your raw data to see if it is a well-formed XML fragment. It just
treats the raw data as its name suggests: "raw data". The format
including white space, new lines, etc. of the raw data is preserved,
but it does not fit well in the existing element.

Thi

[Brad]

This I know. Is there a way to format my result correctly?

"Truong Hong Thi" wrote:

The XmlTextWriter maintains several fields to keep track of identation
level and whether a new line is needed. Everything works well as long
as you call only methods like WriteStartElement and WriteEndElement.
However, when you call WriteRaw, the writer does not attempt to parse
your raw data to see if it is a well-formed XML fragment. It just
treats the raw data as its name suggests: "raw data". The format
including white space, new lines, etc. of the raw data is preserved,
but it does not fit well in the existing element.

[Truong Hong Thi]

>This I know. Is there a way to format my result correctly?
OK. I would like to tell a solution that works.

First thing, you need to remove the following lines:
xw2.WriteStartDocument();
xw2.WriteEndDocument();
Those statements create a second document declaration in the combined
xml and make it ill-formed. The file "d:\test.xml" generated by the
snippet you posted should be malformed because of that.

Then, as I said, you should try to write to "xw" by using methods other
than WriteRaw. Remove the following line:
xw2.Formatting = Formatting.Indented;
That line confuses the writer when combining.

Add the following lines to replace for WriteRaw:
XmlReader r = new XmlTextReader(new
StringReader(sw2.GetStringBuilder().ToString()));
xw.WriteNode(r, false);

Then everything should be OK. You can test it by writing on screen
instead of to a file:
Console.WriteLine( sw.GetStringBuilder().ToString() );

Hope it helps,
Thi

[Brad Wood]

Thanks!

Truong Hong Thi wrote:

First thing, you need to remove the following lines:
xw2.WriteStartDocument();
xw2.WriteEndDocument();
Those statements create a second document declaration in the combined
xml and make it ill-formed. The file "d:\test.xml" generated by the
snippet you posted should be malformed because of that.

Then, as I said, you should try to write to "xw" by using methods other
than WriteRaw. Remove the following line:
xw2.Formatting = Formatting.Indented;
That line confuses the writer when combining.

Add the following lines to replace for WriteRaw:
XmlReader r = new XmlTextReader(new
StringReader(sw2.GetStringBuilder().ToString()));
xw.WriteNode(r, false);