[Mono-list] Xml reading & writing.

[Petit Eric]

2008/9/18 Petit Eric <surfzoid at gmail.com>:
> 2008/9/18 Neil Munro <neilmunro at gmail.com>:
>>
>>
>> 2008/9/17 Petit Eric <surfzoid at gmail.com>
>>>
>>> 2008/9/17 Neil Munro <neilmunro at gmail.com>:
>>> >
>>> >
>>> > 2008/9/17 Jonathan Pryor <jonpryor at vt.edu>
>>> >>
>>> >> On Wed, 2008-09-17 at 02:43 +0100, Neil Munro wrote:
>>> >> > I have an xml file that is my applications preferences, it's an
>>> >> > update
>>> >> > tool, now this update tool can update from multiple sources. If no
>>> >> > preferences file is found on first run, a default set are saved. Now
>>> >> > if the user wishes to add a new update source to the xml file I need
>>> >> > to place the <UpdateSource>blah</UpdateSource> in the correct part of
>>> >> > the file, since the file holds ALL application preferences, I can't
>>> >> > just dump a new source at the end of the text file.
>>> >> >
>>> >> > I guess my question is, what's the best way to solve this problem?
>>> >>
>>> >> As with many things, there are *several* ways to do this:
>>> >>
>>> >>  * System.Xml.XmlDocument:
>>> >>    http://msdn.microsoft.com/en-us/library/system.xml.xmldocument.aspx
>>> >>    Provides a DOM oriented XML manipulation API.
>>> >>    Pro: Somewhat easy to use.
>>> >>    Con: Loads the entire document into memory, so not very useful for
>>> >>         large documents.
>>> >
>>> > This looks like the solution I am going to go for.
>>> >
>>> >>
>>> >>  * System.Xml.XmlReader & System.Xml.XmlWriter:
>>> >>    http://msdn.microsoft.com/en-us/library/system.xml.xmlreader.aspx
>>> >>    http://msdn.microsoft.com/en-us/library/system.xml.xmlwriter.aspx
>>> >>    Pro: Provides a "pull-model" API so that the entire document need
>>> >>         not be loaded at once.
>>> >>    Con: Not as easy to use as XmlDocument.
>>> >>
>>> >>  * System.Xml.XPath.IXPathNavigable
>>> >>
>>> >>
>>> >>  http://msdn.microsoft.com/en-us/library/system.xml.xpath.ixpathnavigable.aspx
>>> >>    Allows reading/writing of XML-like data w/o requiring XML, but
>>> >>    needs an actual implementation that supports reading/writing,
>>> >>    which XmlNode (and thus XmlDocument) do.
>>> >>
>>> >> And I'm probably missing a few...
>>> >>
>>> >> Unless you're working with a large document (read: several MB and
>>> >> larger), I'd suggest either XmlDocument or IXPathNavigable for
>>> >> starters.
>>> >>
>>> >>  - Jon
>>> >
>>> > So I have this:
>>> >
>>> > // Save it in the prefs.xml file.
>>> > XmlDocument xmlDoc = new XmlDocument( );
>>> >
>>> > xmlDoc.Load( sPath_To_Prefs_File );
>>> >
>>> > Now I know that the whole document is loaded into memory at this point,
>>> > how
>>> > would i traverse the document in memory to get to the <UpdateSource>
>>> > section, read until there are no more of that tag and add a new update
>>> > source after the last one and before the next line?
>>> Did yu have a look at my class or the MS one ?
>>
>> The microsoft one, unfortunately my french is not as good as it once was, so
>> I have trouble making sense of the file, and I would prefer to use the
>> .Net/Mono classes exclusivly if I can get away with it.
> For french, time is agaisnt me sorry, but yu can use :
> http://babelfish.yahoo.com/
> Microsoft one is the snipet i put in previous mail, (configuration) it
> should work and be a part of .NET/Mono
The MS class, specialy for managing xml app conf files :
http://msdn.microsoft.com/en-us/library/system.configuration.aspx
>
>>
>>>
>>> >
>>> >
>>> > _______________________________________________
>>> > Mono-list maillist  -  Mono-list at lists.ximian.com
>>> > http://lists.ximian.com/mailman/listinfo/mono-list
>>> >
>>> >
>>>
>>>
>>>
>>> --
>>>
>>> Cordially.
>>>
>>> Small Eric Quotations of the days:
>>>
>>> ---------------------------------------------------------------------------
>>> If one day one reproaches you that your work is not a work of
>>> professional, say you that:
>>> Amateurs built the arch of Noah, and professionals the Titanic.
>>>
>>> ---------------------------------------------------------------------------
>>>
>>> Few people are done for independence, it is the privilege of the powerful
>>> ones.
>>>
>>> ---------------------------------------------------------------------------
>>>
>>> No key was wounded during the drafting of this message.
>>
>>
>
>
>
> --
>
> Cordially.
>
> Small Eric Quotations of the days:
> ---------------------------------------------------------------------------
> If one day one reproaches you that your work is not a work of
> professional, say you that:
> Amateurs built the arch of Noah, and professionals the Titanic.
> ---------------------------------------------------------------------------
>
> Few people are done for independence, it is the privilege of the powerful ones.
> ---------------------------------------------------------------------------
>
> No key was wounded during the drafting of this message.
>



-- 

Cordially.

Small Eric Quotations of the days:
---------------------------------------------------------------------------
If one day one reproaches you that your work is not a work of
professional, say you that:
Amateurs built the arch of Noah, and professionals the Titanic.
---------------------------------------------------------------------------

Few people are done for independence, it is the privilege of the powerful ones.
---------------------------------------------------------------------------

No key was wounded during the drafting of this message.