XML format enforcement

[Sharon]

I wish to write some kind of XML format enforcer like DTD, XSD or other that
can do the following:
(1) Any element and node must have Type attribute that can be read as data
type by the parser.
(1) Any element and node may have (optional) four more attributes.

I XML enforcer should allow any tree structure and any number of nodes in
any tree.

Does anyone can tell how it's possible?

Any example will be most appreciated.


--
Thanks
Sharon

[robert]

Re: XML format enforcement

Sharon,
It certainly can be done. Visual Studio 2005 can use XSD, but not DTD;
has methods for attaching external xsd's or you can place the xsd
inline in the code. Check out the VS documentation. w3.org has
specifications etc.
Robert

Sharon wrote:

I wish to write some kind of XML format enforcer like DTD, XSD or other that
can do the following:
(1) Any element and node must have Type attribute that can be read as data
type by the parser.
(1) Any element and node may have (optional) four more attributes.
>
I XML enforcer should allow any tree structure and any number of nodes in
any tree.
>
Does anyone can tell how it's possible?
>
Any example will be most appreciated.
>
>
--
Thanks
Sharon

[Sharon]

Re: XML format enforcement

Thanks Robert for your reply.

I know that XSD can be attached to an XML file, but I don't know how the SAD
should look like in order to enforce the formatting I have posted.

Can you post en example showing this?

P.S.: I'm using VS 2003.


--
Thanks
Sharon

[robert]

Re: XML format enforcement

Here is a public dtd issued for xml ucc filings:

http://72.14.203.104/search?q=cache:1GDErb1O6WYJ:www.osemicro.com/documents/XML/OAS_UCCGUIDE.pdf+ucc+xml+filing&hl=en&gl=us&ct=clnk&cd=4

with that, you can get it converted with a dtd to xsd converter.
Bob

Sharon wrote:

Thanks Robert for your reply.
>
I know that XSD can be attached to an XML file, but I don't know how the SAD
should look like in order to enforce the formatting I have posted.
>
Can you post en example showing this?
>
P.S.: I'm using VS 2003.
>
>
--
Thanks
Sharon

[Sharon]

Re: XML format enforcement

It seems that ant DTD or XSD defining the node name (parameter name in my
case), and this not good for me.

I need to let the user enter any node name he likes, but I do want to force
him to use my predefined attributes.
And I can't not find a way to do that.

Is there ?


--
Thanks
Sharon

[Sharon]

Re: XML format enforcement

Ok, I think I found a way to do thanks to Marc Clifton articale on
CodeProject (http://www.codeproject.com/dotnet/MycroXaml.asp).

The XML file can be somthing like that:

<?xml version="1.0" encoding="utf-8"?>
<System Name="System">
<Paramaters>
<Speed type="System.Ii nt32">111</Speed >
<_xAxis type="System.Si ngle">222</_xAxis>
<_yAxis type="System.Do uble">333</_yAxis>
<_ID type="System.In t64">444</_ID>
<_Name type="System.St ring">String value...</_Name>
</Paramaters>
</System>


And the C# code can be:

System.IO.Strea mReader sr = new System.IO.Strea mReader("TypesD ef.xml");
string text = sr.ReadToEnd();
sr.Close();
XmlDocument doc = new XmlDocument();
doc.LoadXml(tex t);
XmlNode node = doc.FirstChild;
while( node.NodeType.T oString() != "Element" )
{
node = node.NextSiblin g;
}

XmlNode paramsNode = doc.SelectSingl eNode("//Paramaters");
XmlNodeList nodeList = paramsNode.Chil dNodes;
Hashtable verTypes = new Hashtable(nodeL ist.Count);
string typeName = "";
Type type;

foreach( XmlNode xmlNode in nodeList )
{
XmlAttribute attr = xmlNode.Attribu tes["type"];
typeName = attr.Value;
if( typeName == "System.Str ing" )
{
verTypes[xmlNode.Name] = xmlNode.InnerTe xt;
}
else
{
type = Type.GetType(ty peName, false);
object typeIntance = Activator.Creat eInstance(type) ;
System.Reflecti on.MethodInfo Parse = type.GetMethod( "Parse", new Type
[] {typeof(String) });
verTypes[xmlNode.Name] = Parse.Invoke(ty pe, new object[]
{xmlNode.InnerT ext});
}
}

------
Regards
Sharon