How: Setting UTF8 as an application wide text encoding format

[xmlguy]

XmlTextReader myXmlReader = new XmlTextReader(a rgs[0]);
string en = myXmlReader.Enc oding.EncodingN ame;
//Console.WriteLi ne(x);

Error:

Unhandled Exception: System.NullRefe renceException: Object
reference not set to
an instance of an object.

HOW CAN I GET THE ENCODING NAME ? Basically determine the
encoding type.

Also How can I "set" an application wide Encoding ? I want
all modules and everything to stick to and conform to UTF-
8.

But somehow some methods automatically go to UTF-16

[Christoph Schittko [MVP]]

xmlguy,

1) What's args[0] in your example? Does it contain any Xml? In that case you
first have to pass that sting off to a StringReader. If it's a path to a
file then it's OK.

You have to actually start reading the contents of the XML document. You do
this by calling the Read() method for the first time. This sample code works
for me:

string xml = "<foo>bar</foo>";
XmlTextReader reader = new XmlTextReader( new StringReader( xml ) );
//go to the first node
reader.Read();
System.Diagnost ics.Debug.Write Line( reader.Encoding .EncodingName );
2) All strings object in the framework are unicode encoded. You can work
with the various encoding classes in System.Text.Enc oding to create byte[]s
and MemoryStreams that contain text encoded in a different encoding scheme.
You cannot change the encoding of string objects.

--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"xmlguy" <xm****@yahoo.c om> wrote in message
news:0a******** *************** *****@phx.gbl.. .

XmlTextReader myXmlReader = new XmlTextReader(a rgs[0]);
string en = myXmlReader.Enc oding.EncodingN ame;
//Console.WriteLi ne(x);

Error:

Unhandled Exception: System.NullRefe renceException: Object
reference not set to
an instance of an object.

HOW CAN I GET THE ENCODING NAME ? Basically determine the
encoding type.

Also How can I "set" an application wide Encoding ? I want
all modules and everything to stick to and conform to UTF-
8.

But somehow some methods automatically go to UTF-16

[xmlguy]

I guess I should have specified.

args[0] on the commandline is the name of a .xml file
containing XML with UTF-8 as its encoding.

That is the wierd thing as to why everything defaults to
UTF-16 ?

-----Original Message-----
xmlguy,

1) What's args[0] in your example? Does it contain any Xml? In that case youfirst have to pass that sting off to a StringReader. If it's a path to afile then it's OK.

You have to actually start reading the contents of the XML document. You dothis by calling the Read() method for the first time. This sample code worksfor me:

string xml = "<foo>bar</foo>";
XmlTextReade r reader = new XmlTextReader( new StringReader ( xml ) );//go to the first node
reader.Read( );
System.Diagnos tics.Debug.Writ eLine( reader.Encoding .EncodingName );

2) All strings object in the framework are unicode encoded. You can workwith the various encoding classes in System.Text.Enc oding to create byte[]sand MemoryStreams that contain text encoded in a different encoding scheme.You cannot change the encoding of string objects.

--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"xmlguy" <xm****@yahoo.c om> wrote in message
news:0a******* *************** ******@phx.gbl. ..

XmlTextReader myXmlReader = new XmlTextReader(a rgs[0]);
string en = myXmlReader.Enc oding.EncodingN ame;
//Console.WriteLi ne(x);

Error:

Unhandled Exception: System.NullRefe renceException: Object reference not set to
an instance of an object.

HOW CAN I GET THE ENCODING NAME ? Basically determine the encoding type.

Also How can I "set" an application wide Encoding ? I want all modules and everything to stick to and conform to UTF- 8.

But somehow some methods automatically go to UTF-16

.

[Christoph Schittko [MVP]]

The encoding of the data in your file becomes irrelevant once you use a
StreamReader to read the file content into a strings. Strings are always
UTF-16 in .NET. You have to work with byte[] instead of strings if you need
to preserve the character encoding.

Does it matter what format the data is encoded in within your application?
Or do you simply need to be able to write it back to a file in UTF-8
encodeing?
--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"xmlguy" <xm****@yahoo.c om> wrote in message
news:04******** *************** *****@phx.gbl.. .

I guess I should have specified.

args[0] on the commandline is the name of a .xml file
containing XML with UTF-8 as its encoding.

That is the wierd thing as to why everything defaults to
UTF-16 ?

-----Original Message-----
xmlguy,

1) What's args[0] in your example? Does it contain any

Xml? In that case you

first have to pass that sting off to a StringReader. If

it's a path to a

file then it's OK.

You have to actually start reading the contents of the

XML document. You do

this by calling the Read() method for the first time.

This sample code works

for me:

string xml = "<foo>bar</foo>";
XmlTextReade r reader = new XmlTextReader( new StringReader

( xml ) );

//go to the first node
reader.Read( );
System.Diagnos tics.Debug.Writ eLine(

reader.Encoding .EncodingName );

2) All strings object in the framework are unicode

encoded. You can work

with the various encoding classes in System.Text.Enc oding

to create byte[]s

and MemoryStreams that contain text encoded in a

different encoding scheme.

You cannot change the encoding of string objects.

--
HTH
Christoph Schittko [MVP]
Software Architect, .NET Mentor

"xmlguy" <xm****@yahoo.c om> wrote in message
news:0a******* *************** ******@phx.gbl. ..

XmlTextReader myXmlReader = new XmlTextReader(a rgs[0]);
string en = myXmlReader.Enc oding.EncodingN ame;
//Console.WriteLi ne(x);

Error:

Unhandled Exception: System.NullRefe renceException: Object reference not set to
an instance of an object.

HOW CAN I GET THE ENCODING NAME ? Basically determine the encoding type.

Also How can I "set" an application wide Encoding ? I want all modules and everything to stick to and conform to UTF- 8.

But somehow some methods automatically go to UTF-16

.