How to detect, if an element string has to be written as CDATA

[Stefan Gentzmer]

Hello,

how can i detect, if the text for a XmlElement has to be written as CDATA (i
am using the XmlWriter) instead of a normal string.

For example

<start>
<node1>HelloWorld</node1>
<node2>a>b</node2>
</start>

How can i programmatically detect, that node1 can be written by using
XmlWriter.WriteString and node2 must be written by XmlWriter.WriteCData

[Pascal Schmitt]

Hello!

how can i detect, if the text for a XmlElement has to be written as CDATA (i
am using the XmlWriter) instead of a normal string.

There are multiple types that derive from System.Xml.XmlCharacterData -
maybe you can test the type of your XmlNode:

XmlNode n = /* get node */...;

if( n is XmlCDataSection ){ /* <![CDATA[ ... ]]> */ }
else if( n is XmlText ){ /* plain text */ }
else if( n is XmlComment ){ ... }
else if( n is XmlSignificantWhitespace ){ ... }
else if( n is XmlWhitespace ){ ... }
else { /* no text node */ }
--
Pascal Schmitt

[Stefan Gentzmer]

>> how can i detect, if the text for a XmlElement has to be written as CDATA

(i am using the XmlWriter) instead of a normal string.

There are multiple types that derive from System.Xml.XmlCharacterData -
maybe you can test the type of your XmlNode:

Sorry, that was not my question.

I'm writing an object modell to xml via XmlWriter.

So, there is no XmlElement-Object.

The only thing that a have is the XmlWriter and a string-field with a value
e.g."Test1" or "a > b".

Now, i need a possibility to decide,
if i had to use XmLWriter.WriteString
or XmlWriter.WriteCData to write this value to the Xml-File.

[Peter Flynn]

"Stefan Gentzmer" <StGentzmer_at_gmx.de> wrote:

how can i detect, if the text for a XmlElement has to be written as
CDATA (i am using the XmlWriter) instead of a normal string.

There are multiple types that derive from System.Xml.XmlCharacterData
- maybe you can test the type of your XmlNode:

Sorry, that was not my question.

I'm writing an object modell to xml via XmlWriter.

So, there is no XmlElement-Object.

The only thing that a have is the XmlWriter and a string-field with a
value e.g."Test1" or "a > b".

Now, i need a possibility to decide,
if i had to use XmLWriter.WriteString
or XmlWriter.WriteCData to write this value to the Xml-File.

If the character data contains & or < that must not be interpreted as
markup, then it must be enclosed in a CDATA section.

The example "a>b" does not, so it does not need to be. The > sign is
only interpreted as markup once a < sign has been encountered.

See http://xml.silmaril.ie/authors/cdata/

///Peter

[Pascal Schmitt]

Hello!

The only thing that a have is the XmlWriter and a string-field with a value
e.g."Test1" or "a > b".

Now, i need a possibility to decide,
if i had to use XmLWriter.WriteString
or XmlWriter.WriteCData to write this value to the Xml-File.

Ah - ok. You don't have to decide this - you can always use WriteString,
the XmlTextWriter will do the escaping of &,< and > for you.
--
Pascal Schmitt