XmlSerializer - Indent as tab instead of spaces

[=?ISO-8859-1?Q?Norbert_P=FCrringer?=]

Hello,

does anyone know how to serialize an object to xml by using tabs as
indent instead of spaces.

My serializer code looks like following:

public static XmlDocument Serialize(objec t serializableObj ect)
{
XmlSerializer responseSeriali zer = new
XmlSerializer(s erializableObje ct.GetType());

StringBuilder sb = new StringBuilder() ;
StringWriter writer = new StringWriter(sb );
XmlSerializerNa mespaces ns = new XmlSerializerNa mespaces();
try
{
ns.Add("", null);
ns.Add("xsd", "http://www.w3.org/2001/XMLSchema-instance");
responseSeriali zer.Serialize(w riter, serializableObj ect, ns);
}
catch (Exception ex)
{
if (ex is InvalidOperatio nException)
throw ex.InnerExcepti on;
else
throw ex;
}
XmlDocument xmlResponse = new XmlDocument();
xmlResponse.Loa dXml(sb.ToStrin g());
return xmlResponse;
}

Thank you,
Norbert

[Marc Gravell]

Re: XmlSerializer - Indent as tab instead of spaces

You need to write to an XmlWriter (which wraps, for example, your
StringWriter, StreamWriter, or whatever) which has been created with
suitable XmlWriterSettin gs - as below.

Marc

using System;
using System.IO;
using System.Xml;
using System.Xml.Seri alization;
[Serializable]
public class Foo
{
public string Name { get; set; }
public int ShoeSize { get; set; }
}
static class Program
{
static void Main() {
Foo foo = new Foo { Name = "Fred", ShoeSize = 12 };

XmlWriterSettin gs settings = new XmlWriterSettin gs();
settings.Indent Chars = "\t";
settings.Indent = true;

using(StringWri ter sw = new StringWriter())
using (XmlWriter xw = XmlWriter.Creat e(sw, settings))
{
new XmlSerializer(t ypeof(Foo)).Ser ialize(xw, foo);
string xml = sw.ToString();
Console.WriteLi ne(xml);
}

}
}

[Adam Benson]

Re: XmlSerializer - Indent as tab instead of spaces

If you can alter things to use an XMLTextWriter that has an IndentChar field
:

System.IO.Strin gWriter sw = new System.IO.Strin gWriter();

XmlTextWriter xmltw = new XmlTextWriter(s w);

xmltw.Formattin g = Formatting.Inde nted;

xmltw.IndentCha r = '\x09';


HTH,

Adam.
=======

[Jon Skeet [C# MVP]]

Re: XmlSerializer - Indent as tab instead of spaces

On Jun 18, 11:08 am, "Adam Benson"
<Adam.Ben...@NO SPAMMYSPAM.omni bus.co.ukwrote:

If you can alter things to use an XMLTextWriter that has an IndentChar field
>
System.IO.Strin gWriter sw = new System.IO.Strin gWriter();
>
XmlTextWriter xmltw = new XmlTextWriter(s w);
xmltw.Formattin g = Formatting.Inde nted;
xmltw.IndentCha r = '\x09';

While you can do it this way, I prefer Marc's way of using
XmlWriterSettin gs. I also like to combine it with object initializers
in C# 3, which lets you do it all in one go if you want:

using (XmlWriter xw = XmlWriter.Creat e(sw,
new XmlWriterSettin gs { IndentChars="\t ", Indent=true }))
{
...
}

Jon

[=?ISO-8859-1?Q?Norbert_P=FCrringer?=]

Re: XmlSerializer - Indent as tab instead of spaces

Thank you for your advise using the XmlWriterSettin gs.

But the set Indent get lost, if I say something like that:

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml( stringWriter.To String());
xmlDoc.Save(fil e);

Any idea how to say the XmlDocument to preserve the set indent?

Thank you,
Norbert

[Jon Skeet [C# MVP]]

Re: XmlSerializer - Indent as tab instead of spaces

On Jun 18, 12:28 pm, Norbert Pürringer <thalio...@graf fiti.netwrote:

Thank you for your advise using the XmlWriterSettin gs.
>
But the set Indent get lost, if I say something like that:
>
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml( stringWriter.To String());
xmlDoc.Save(fil e);
>
Any idea how to say the XmlDocument to preserve the set indent?

It can't - the document itself has no concept of indentation. It's how
it's written that decides it. You'll need to save using a writer with
the appropriate settings.

Jon

[Martin Honnen]

Re: XmlSerializer - Indent as tab instead of spaces

Norbert Pürringer wrote:

But the set Indent get lost, if I say something like that:
>
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml( stringWriter.To String());
xmlDoc.Save(fil e);
>
Any idea how to say the XmlDocument to preserve the set indent?

Have you tried to set
xmlDoc.Preserve Whitespace = true;
before you load?

--

Martin Honnen --- MVP XML

http://JavaScript.FAQTs.com/