请教验证XML文件的完整性，格式良好以及有效性的一揽子解决方案

请教验证XML文件的完整性，格式良好以及有效性的一揽子解决方案

用schema验证的写法如下
-------------------------------------------------------------
//生成schema模板
MSXML2::IXMLDOMSchemaCollection2Ptr m_pSchemaCollection;
m_pSchemaCollection.CreateInstance(__uuidof(MSXML2::XMLSchemaCache40));
CString offline = "sample.xsd";
m_pSchemaCollection->add(_T(""), offline.AllocSysString());
//生成dom
MSXML2::IXMLDOMDocument2Ptr m_objDOMDoc;
m_objDOMDoc.CreateInstance(__uuidof(MSXML2: OMDocument40));
m_objDOMDoc->schemas = pSchema.GetInterfacePtr();
m_objDOMDoc->resolveExternals = TRUE;
m_objDOMDoc->validateOnParse = TRUE;
m_objDOMDoc->async = FALSE;
m_objDOMDoc->Load("sample.xml")
//校验
MSXML2::IXMLDOMParseErrorPtr error;
error = m_objDOMDoc->validate();
//校验出错
if(error->errorCode != 0)
{
_bstr_t strerror = error->reason;
MessageBox(NULL,"",strerror,MB_OK);
}

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