XML Parsing

  • Thread starter Thread starter Jose Cintron
  • Start date Start date
J

Jose Cintron

The XML file looks something like this...

--- Start XML ---
<?xml version="1.0" ?>
<VULNERABILITIES>
<PROGRAM_VERSION>0.0.1</PROGRAM_VERSION>
<CONTROL_VERSION>0.0.1</CONTROL_VERSION>
<VULNERABILITY>
<V_SHORT_NAME>SOMETHING</V_SHORT_NAME>
<V_LONG_NAME>SOMETHING</V_LONG_NAME>
<V_DISCUSSION>NICE DESCRIPTION</V_DISCUSSION>
<V_REFERENCE>
<V_CATEGORY>SOMETHING</V_CATEGORY>
<ID>1</ID>
</VULNERABILITY>
<VULNERABILITY>
<V_SHORT_NAME>SOMETHING</V_SHORT_NAME>
<V_LONG_NAME>SOMETHING</V_LONG_NAME>
<V_DISCUSSION>NICE DESCRIPTION</V_DISCUSSION>
<V_REFERENCE>
<V_CATEGORY>SOMETHING</V_CATEGORY>
<ID>2</ID>
</VULNERABILITY>
 
Jose Cintron said:
...
..\XMLparse.cpp(16) : error C3622: 'System::Xml::XmlReader': a class declared
as 'abstract' cannot be instantiated
Click to expand...

Correct. You can't directly create XmlReader objects with gcnew.
..\XMLparse.cpp(16) : error C3673: 'System::Xml::XmlReader' : class does not
have a copy-constructor
Click to expand...

Also correct, because XmlReader is abstract.
Just in case it makes a difference I'm using Visual C++ Express Edition.
Any ideas will be greatly appreciated
Click to expand...

See the System::Xml::XmlReader.Create(...) family of methods. You can create
various kinds of XmlReaders there, depending on where your XML is coming from.

Sean
 
Thanks a million... Changed the line to
XmlReader^ rdr = XmlReader::Create("Vulnerabilities.xml");
and all of the sudden it works.
 
OK the code looks as follows now...

--- Start Code ---
#include "stdafx.h"
#using <mscorlib.dll>
#using <System.xml.dll>

using namespace System;
using namespace System::Xml;

int _tmain(int argc, _TCHAR* argv[])
{
try
{
// Create the reader...
XmlReader^ rdr = XmlReader::Create("Vulnerabilities.xml");
while (rdr->ReadToFollowing("VULNERABILITY"))
{
Console::WriteLine("ID:" + rdr->GetAttribute("ID"));
}
}
catch (Exception^ pe)
{
Console::WriteLine(pe->ToString());
}
return 0;
}
--- End Code ---

My problem now is with the GetAttribute function. From what I read in MSDN
it should move to the Attribute specified in the string "ID" and return its
value. Is my understanding correct? If it is why is this damn thing not
working? The while loop works just fine and I know that there is an ID
entry for every VULNERABILITY.
 
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