Hi Leszek,
Thanks for posting in the community!
From your description, you have a custom xml document used to store some
configure infos as below:
<events .. >
<event ..>
<sessions>
<session ... ....>
..
</sessions>
</event>
.....
......
</events>
And you'd like to use some certain class object to mantain them in memory
so as to manipulate them more Object-Orientedly ,yes?
If there is anything I misunderstood, please feel free to let me know.
Based on my understanding, the Xml Serialization of the dotnet framework is
exactly the solution you need. The Dotnet framework provide a group of
XmlSerilization Attributes for you to control your own custom classes so as
to map such class to certain format Xml Document. Then, we can use
XmlSerilizer Component to serialize the classes's object instances into Xml
files or deserialize xml document into class instances in memory. How do
you think of this? The most components of the dotnet Xml Serialiation
function are under the System.Xml and System.Xml.Serialization namespace.
Here are some detailed reference and tech artiles on the Xml Serialization
in dotnet:
#XML Serialization in the .NET Framework
http://msdn.microsoft.com/library/en...03.asp?frame=t
rue
#System.Xml.Serialization Hierarchy
http://msdn.microsoft.com/library/en...xmlserializati
onhierarchy.asp?frame=true
#Examples of XML Serialization
http://msdn.microsoft.com/library/en...ampleofxmlseri
alizationwithxmlserializer.asp?frame=true
#Controlling XML Serialization Using Attributes
http://msdn.microsoft.com/library/en...rollingseriali
zationbyxmlserializerwithattributes.asp?frame=true
As for your situation, we could define a group of custom classes to mapping
to the elements in your xml document, for example, here is a group of
sample classes I made:
-------------------------------------------class
file(events.cs)---------------------------------
using System.Xml.Serialization;
[System.Xml.Serialization.XmlRootAttribute(Namespac e="", IsNullable=false)]
public class Events {
[System.Xml.Serialization.XmlElementAttribute("even t",
Form=System.Xml.Schema.XmlSchemaForm.Unqualified)]
public Event[] Items;
}
public class Event {
[System.Xml.Serialization.XmlArrayAttribute(Form=Sy stem.Xml.Schema.XmlSchema
Form.Unqualified)]
[System.Xml.Serialization.XmlArrayItemAttribute("se ssion",
typeof(Session), Form=System.Xml.Schema.XmlSchemaForm.Unqualified,
IsNullable=false)]
public Session[] sessions;
[System.Xml.Serialization.XmlAttributeAttribute()]
public string name;
}
public class Session {
[System.Xml.Serialization.XmlAttributeAttribute()]
public string date;
[System.Xml.Serialization.XmlAttributeAttribute()]
public string time;
[System.Xml.Serialization.XmlAttributeAttribute()]
public string location;
}
--------------------------------------
Then, we can use the below code to create a certain events class instance
and serialize it into a xml file:
----------------------------------------
private void button2_Click(object sender, System.EventArgs e)
{
XmlSerializer serializer = new XmlSerializer(typeof(Events));
Events events = new Events();
Event[] arrEvent = new Event[3];
for(int i=0;i<3;i++)
{
Event evt = new Event();
Session[] arrSession = new Session[3];
for(int j=0;j<3;j++)
{
Session sn = new Session();
sn.location = "location_" + i.ToString() +"_" + j.ToString();
sn.date = "date_" + i.ToString() +"_" + j.ToString();
sn.time = "time_" + i.ToString() +"_" + j.ToString();
arrSession[j] = sn;
}
evt.sessions = arrSession;
arrEvent[i] = evt;
}
events.Items = arrEvent;
TextWriter writer = new StreamWriter("output.xml");
serializer.Serialize(writer,events);
writer.Close();
}
------------------------------------------------------
It is as simple as above to deserialize a certain format document into a
certain events instance(in memory).
Please try out the above suggestions and the code. If you feel any thing
unclear or need any further help, please feel free to let me know.
Regards,
Steven Cheng
Microsoft Online Support
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