How to check whether the XML tag is well formed using C#

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How to check whether all the Xml tag are formed in the following order using XMLReader

XML

<Model>
<Object type="Book">
<Component id="123">
<Element id="123">
<Article>
</Article>
<Article >
</Article>
</Element>
</Component>
</Object>
</Model>

Here Article node doesn't have any attributes.

I need to count the Object Node having attribute type="Book" and tag as formed above.

If the tag follows the above structure a book should be counted.

How to do this if XML contains 12000 lines.

Here is the code I've tried

C#

XMLReader reader=new XMLReader(filePath);
bool inObject=false;
bool inComponent=false;
bool inElement=false;

int bookCount=0;

while(reader.read())
{
if(reader.LocalName="Object" && !inObject)
{
inObject=true;
}
if(reader.LocalName="Component" && inObject==true)
{
inComponent=true;
}
if(reader.LocalName="Element" && inComponent==true)
{
inElement=true;
}
if(reader.LocalName=="Article" && inElement==true)
{
bookCount++;
inObject=false;
}
}

}

Its not working Please help me

Posted 31-Mar-14 8:42am

KUMAR619

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PIEBALDconsult · Accepted Answer · 2014-03-31T09:18:00

For well-formedness I simply try to load it into an XmlDocument and catch the Exception.

You may be looking to validate against a schema; that's a whole different matter.

But to keep it simple, rather than do what you have, look into XPath : /Model/Object[@type='Book' and Component/Element/Article] .

System.Xml.XmlDocument doc = new System.Xml.XmlDocument() ;
doc.Load ( "Book.xml" ) ;
System.Console.WriteLine ( doc.SelectNodes ( "/Model/Object[@type='Book' and Component/Element/Article]" ).Count ) ;