How can I validate an XML document with C#?

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Doru Roman - 29 Mar 2006 17:27 GMT

Hi,

I am a beginner and I try to understand how can I use C# and Netframework to
validate an XML document. Is XSD a solution? How?

Thanks,
Doru

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Martin Honnen - 29 Mar 2006 17:41 GMT

> I am a beginner and I try to understand how can I use C# and Netframework to
> validate an XML document. Is XSD a solution? How?

The .NET framework supports validation against a DTD or against an XDR
schema (deprecated) or against W3C XSD schema(s).
With .NET 1.x you would use XmlValidatingReader to do the validation,
with .NET 2.0 you would create an XmlReader with the proper
XmlReaderSettings for the validation you want.
See
<http://samples.gotdotnet.com/quickstart/howto/doc/Xml/ValidationReadingXML.aspx>
for .NET 1.x and
<http://www.asp.net/quickstart/howto/doc/Xml/ValidationReadingXML.aspx>
for .NET 2.0.

Signature

Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/

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Doru Roman - 29 Mar 2006 19:19 GMT

Thank you Martin. I will give it a try and eventually with more questions if
needed.

>> I am a beginner and I try to understand how can I use C# and Netframework
>> to validate an XML document. Is XSD a solution? How?
[quoted text clipped - 9 lines]
> <http://www.asp.net/quickstart/howto/doc/Xml/ValidationReadingXML.aspx>
> for .NET 2.0.

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Doru Roman - 29 Mar 2006 20:46 GMT

In fact I have some questions as I got stuck.
I have an XML document. What is next? How do I bring the XML document into
my C# project so that I can create an XSD schema? Can I create a schema from
the XML menu Item?
Afterwards I will try to write the code to validate the document, but I need
help to get to this point.

> Thank you Martin. I will give it a try and eventually with more questions
> if needed.
[quoted text clipped - 12 lines]
>> <http://www.asp.net/quickstart/howto/doc/Xml/ValidationReadingXML.aspx>
>> for .NET 2.0.

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Cerebrus - 29 Mar 2006 22:02 GMT

Hi Doru Roman,

>> I have an XML document. What is next? How do I bring the XML document into
>> my C# project so that I can create an XSD schema?

In Solution Explorer, right click the project name and then choose Add
-> Add Existing item... then select your XML file.

2. To create your XML Schema :

a) Manually method : In Solution Explorer, right click the project name
and then choose Add -> Add New item... then select "XML Schema"
b) Automatic method : Once your XML file is opened, open the XML menu
at the top, and choose "Create schema".

>> Can I create a schema from the XML menu Item?

Yes, that method is mentioned in point b) above.

Hope this helps,

Regards,

Cerebrus.

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Doru Roman - 29 Mar 2006 23:29 GMT

Thanks

> Hi Doru Roman,
>
[quoted text clipped - 21 lines]
>
> Cerebrus.

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How can I validate an XML document with C#?

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