xml reader

[jacek]

myTag1 and myTag2 look like XML namespaces. How exactly C# parser "fails to parse those tags"?

[mickey]

XmlTextReader tr = new XmlTextReader(path_and_File);                                  
while (tr.Read()) {            
   //here I need to extract tag name;
   //all goes fine until it see <tag1:Other>
   //an exception raises saying that tag1 namespace isn't declare;   
}

XmlTextReader tr = new XmlTextReader(path_and_File);                                  
while (tr.Read()) {            
   //here I need to extract tag name;
   //all goes fine until it see <tag1:Other>
   //an exception raises saying that tag1 namespace isn't declare;   
}

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Probabily you understand the core........how do I use those type of tags?

[jacek]

You can try to set the Namespaces attribute to false and see what happens. Another option is to reimplement LookupNamespace() method and make it always return some URI.

[mickey]

With first

tr.Namespaces = false;

tr.Namespaces = false;

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it works;
Any more explaination about second option, please?

[jacek]

Any more explaination about second option, please?

You have to declare namespaces before you can use them and you do this by adding special attribute:

<element xmlns:namespace="http://unique.URI.for/namespace">
...
   <namespace:someOtherElement />
...
</element>

<element xmlns:namespace="http://unique.URI.for/namespace">
...
   <namespace:someOtherElement />
...
</element>

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This way the parser will know what "namespace" is. Such mechanism is useful when you embed one XML document in another (for example XHTML tags in XSLT stylesheet or SVG in DocBook) and still want to have a possibility to validate your document.

The idea was to trick the parser and make it think, that it has already seen the namespace declaration.