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Simply spoken a XML Schema describes a set of elements and attributes and how these are allowed to be nested. Each XML file that claims to conform to the Schema has to follow these rules.
In your case the Schema has nothing to do with the storing process itself, but it gives you the possibility to validate whether your storage file (still) has the expected structure/content.
Out there are many tutorials on XML and XML Schema that can be easily found with google or the search engine of your choice. I suggest you read some of them, try to solve the problem on your own and come back if you get stuck at some point.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Thank u Stefan 4 ur reply.
U have cleared my doubt.I take ur suggestions to start reading abt XML Schema.
Can u please suggest me some tips how to store values from a Texbox of ASP.NET page to XML .
me using SQL2005 to store values but the client wants it to be XML FILE.
so plz help me dude.
Thanking you
Bino Varghese
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Well your best bet would be to use an instance of XmlDocument class that gives you a DOM representation of your XML file and add nodes to it according to the structure of your XML. Take a look at the MSDN documentation for the XmlDocument class which provides some examples and many links for further reading.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Thank you Stefan 
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how to read the content of the XML File when we dont know the nodes.
Mohinder Singh
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If you're using DOM to access the XML file you can simply iterate over the child nodes of a given node starting with the document's root node.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Hi all,
i am new to .net technology (and also to XML). please can anyone explain me these:
1.When we are constructing an XML DTD, how can we create an external entity reference in an attribute value?
2.please can u Give some examples of XML DTDs or schemas that we generally have to work with?
3.which type of applications that can benefit from using XML?
Thanks,
Rahi
If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "
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Rahithi wrote: 3.which type of applications that can benefit from using XML?
XML is *great* for configuration files, and, of course, for data exchange between different applications. About every configurable application that exports or imports data will benefit from XML.
"Throughout human history, we have been dependent on machines to survive. Fate, it seems, is not without a sense of irony. " - Morpheus
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Thanks for ur response. can u answer my first 2 questions please.......
If you look at what you do not have in life, you don't have anything,
If you look at what you have in life, you have everything... "
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Is the following what you are looking for?
File hello.ent contents:
<?xml encoding="UTF-8"?>Hello
File entity.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE greetings [
<!ENTITY greet SYSTEM "hello.ent">
]>
<root>
<say word="&greet;"/>
</root>
As for other questions see:
http://www.w3schools.com/dtd/default.asp[^]
"We make a living by what we get, we make a life by what we give." --Winston Churchill
-- modified at 2:51 Saturday 16th December, 2006
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I have this schema as shown below. I need to generate an xml file that will use the schema. Note the nested nature of the schema. What i got gave error validated by client. I am in deep sh*t now need help get this working. i work with vb.net or c#
the schema
<?xml version="1.0" encoding="utf-8" ?>
<xs:schema id="PENCOM_REPORT"
targetNamespace="http://tempuri.org/QCR101.xsd"
xmlns="http://tempuri.org/QCR101.xsd"
xmlns:mstns="http://tempuri.org/QCR101.xsd"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"
attributeFormDefault="qualified"
elementFormDefault="qualified">
<xs:element name="QCR101" msdata:IsDataSet="true" msdata:EnforceConstraints="False">
<xs:complexType>
<xs:choice maxOccurs="unbounded">
<xs:element name="REPORT_HEADER">
<xs:complexType>
<xs:sequence>
<xs:element name="REPORT_CODE" type="xs:string" minOccurs="0" />
<xs:element name="REPORT_NAME" type="xs:string" minOccurs="0" />
<xs:element name="PFA_CODE" type="xs:string" minOccurs="0" />
<xs:element name="PFA_NAME" type="xs:string" minOccurs="0" />
<xs:element name="REPORT_DATE" type="xs:string" minOccurs="0" />
<xs:element name="TOTAL_AMOUNT" type="xs:string" minOccurs="1" />
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="REPORT_DATA">
<xs:complexType>
<xs:sequence>
<xs:element name="ITEMS_DATA" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="SERIAL_NO" type="xs:string" minOccurs="0" />
<xs:element name="DESCRIPTION" type="xs:string" minOccurs="0" />
<xs:element name="AMOUNT" type="xs:string" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="REPORT_FOOTER">
<xs:complexType>
<xs:sequence>
<xs:element name="CONTACT_DETAILS" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:sequence>
<xs:element name="NAME" type="xs:string" minOccurs="0" />
<xs:element name="TEL_NO" type="xs:string" minOccurs="0" />
<xs:element name="EXTN" type="xs:string" minOccurs="0" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
tanks in advance
-- modified at 11:01 Wednesday 13th December, 2006
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Either enable the "Ignore HTML tags in this message" checkbox beneath the smilies or replace all < with <, cause otherwise we see neither your schema nor the xml fragment.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Ok there is the schema, but I don't see your XML file that happens to fail validation.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Hey guys, i'm fearly new to xml (espacially xpath) and need a little help here..
My XML document looks like
<br />
<?xml version="1.0" encoding="ISO-8859-1" ?><br />
< Properties><br />
< Property><br />
<Number>10</Number><br />
<Type>Type A</TypeNL><br />
<Description>A nice description</Description><br />
</Property><br />
</Properties><br />
(added spaces in front of the Properties and Property element, because else they appear as smiley)
I'm trying to loop through all properties (ofcourse in my xml document there are more than one properties) and would like to retrieve the number, type and description of the property. I'm writing my app in C#
<br />
XPathDocument docRegion = new XPathDocument(_XmlFilePath);<br />
XPathNavigator navRegions = docRegion.CreateNavigator();<br />
XPathNodeIterator nodeProperty = navRegions.SelectChildren("//Properties/Property", "");<br />
I would expect the SelectChildren function to return a collection of all properties in my XML document, but i'm not getting the expected values returned. Am I doing something wrong, do I need a diffrent approach or something??
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Eduard Keilholz wrote: (added spaces in front of the Properties and Property element, because else they appear as smiley)
You can enable the "Ignore HTML tags in this message" checkbox beneath the smilies to easily post XML fragments. Unfortunately this also disables the other formatting possibilities, but most times it's far more practically than inserting spaces or replacing < with <.
Eduard Keilholz wrote: Am I doing something wrong, do I need a diffrent approach or something??
Documentation says that SelectChildren selects only directly nested children and the first parameter should be a local name and no XPath expression. So either change the first parameter to "Property" (not sure if this works cause I'm not sure whether "Properties" is the current node of the the XPathNavigator) or use the Select method which allows the use of XPath expressions.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Seems to be working pretty sweet, thnx a lot!
Stefan Troschütz wrote :
You can enable the "Ignore HTML tags in this message" checkbox beneath the smilies to easily post XML fragments. Unfortunately this also disables the other formatting possibilities, but most times it's far more practically than inserting spaces or replacing < with <.
I thought this would filter all html tags which disables me to insert xml
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I never thought about it, but the checkbox label could be misinterpreted the way you did. Maybe "Treat HTML tags and there content as plain text" would be more precise.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Hi All,
I am very new to XML domain.
I want to know the importance of "" tag.
What information xml version value(1.0) give to us.
Thanks,
Suraj
Suraj Gupta
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Either check the "Ignore HTML tags in this message" checkbox beneath the smilies or replace all < with <, so we can see what tag you're talking about.
The value of the version attribute tells you exactly what the name implies: the version of the XML standard the document conforms to.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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Thanks alot...
Suraj
Suraj Gupta
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how can i search within XML document.
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You use XPath.
"We make a living by what we get, we make a life by what we give." --Winston Churchill
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Hi!
Im working with VS2003 — VB.Net. I stuck with problem. When i apply serialization for my class, i cant get element with 2 attrib: one attribute as null (xsi:nil="true") and another - valuable.
Like this : <IndTaxNum ROWNUM="1" xsi:nil="true" />
My code:
' piece of class for serialization
Public Class DBody
' .....................
<System.Xml.Serialization.XmlElementAttribute("IndTaxNum", _
Form:=System.Xml.Schema.XmlSchemaForm.Unqualified, _
IsNullable:=True)> _
Public IndTaxNum() As IndTaxNumColumn
'.....................
End Class
' type IndTaxNumColumn declare
Public Class IndTaxNumColumn
<System.Xml.Serialization.XmlAttributeAttribute()> _
Public ROWNUM As Integer
<System.Xml.Serialization.XmlTextAttribute()> _
Public Value As String
End Class
XML document use for saving table. Not all variables Value have meaning (some of their Nullable).
<IndTaxNum ROWNUM="1" xsi:nil="true" />
<IndTaxNum ROWNUM="2">345453<IndTaxNum/>
<IndTaxNum ROWNUM="3" xsi:nil="true" />
<IndTaxNum ROWNUM="4">767567<IndTaxNum/>
.................
However if set in code:
Value = System.DBNull.Value.ToString or
Value = Nothing or
Value = String.Empty
generating —
<IndTaxNum ROWNUM="1" />
if dont insert value to array IndTaxNumColumn -
<IndTaxNum xsi:nil="true" />
So, what i must set for result:
<IndTaxNum ROWNUM="1" xsi:nil="true" /> ?
thank you!
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Hi, I am trying to use XPath in my VC++.NET application to navigate my XML document. But I am getting nothing when I run <code>Select()</code> method of <code>XPathNavigator</code> class. I am posting my XML, XSD and CODE with this message. Can I know what is the problem with this code?
XSD File:
<?xml version="1.0"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:target="http://www.example.com/name" targetNamespace="http://www.example.com/name" elementFormDefault="qualified">
<element name="name">
<complexType>
<sequence>
<element name="first" type="string"/>
<element name="middle" type="string"/>
<element name="last" type="string"/>
</sequence>
<attribute name="title" type="string"/>
</complexType>
</element>
</schema>
XML File:
<?xml version="1.0"?>
<name xmlns="http://www.example.com/name" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.example.com/name name5.xsd" title="Mr.">
<first>John</first>
<middle>Fitzgerald Johansen</middle>
<last>Doe</last>
</name>
VC++.NET code:
XmlDocument* m_myDoc = new XmlDocument();
m_myDoc->Load(S"name5.xml");
XPathNavigator* m_myNav = m_myDoc->CreateNavigator();
m_myNav->MoveToRoot();
XPathNodeIterator* myNodeIte = m_myNav->Select(S"/name");
int cnt = myNodeIte->Count;
I am getting no data from this doce.
Thanks in advance.
Priyank
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The problem is that the name element you're trying to select is in the "http://www.example.com/name" namespace (via xmlns attribute) but your XPath expression looks for a name element in the empty namespace. Use the overload of Select that takes an additional IXmlNamespaceResolver instance. The example of the MSDN topic should give you an idea on how to adjust your code.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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