HOW TO: Use XmlDocument Elements When Passed to or Returned from WebMethods by Using Visual C# .NET

• System.Xml

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  • ?????
    • Create a Web Method
    • Consume the Web Method
  • Troubleshoot
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• XmlDocument.LoadXml(XmlNode.OuterXml)
• XmlDocument.ImportNode(XmlNode, true)

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1. Microsoft Visual Studio .NET, ??? ????? ??? ??? ????? C# .NET asp.NET ??? ???? ?????????? ??? ???? ?? ???, ????? ????? ?? ???? ????::
   1. ????? ???????????? ??,????? ????-????? ????, ?? ???? ????????????.
   2. ?????????????? ??????????, ????? ????????? C# ??????????? ????-????? ????, ?? ???? ???ASP.NET ??? ?????????????????????
2. ????????????? ????? ???, ??????XMLDocService(???????? ??? ?? WebService1) ??????? ??? ????????? ?????
3. ???? ?? ??? Service1.asmx ?? ???? ?? ??????? ??? ???? ?? ??? ?????XMLDocService.asmx.
4. ????? ????,??? ????? ?? ????? ???? ?? ??? ???? ????? ??????? ????? ?? ????? ???? ?? ??? ??????? ????????
5. ???? ?? ?? ???? ???? ?? ????????? ???XMLDocument???????? ??? ???? ?????? ???? ?? ???????? ???? ?? ??? ????????? ?? ?????? ???WebMethod??????? ??? ?? ??????? ?? ???? ???? ???? ???? ?????? ??????
   
   ???:???????? ???? ???? ???? ?????WebMethod??????? ??? ????????? ??? ???? ??????? ?? ??? ?? ??? ??????????? ????? ?? ?????? ?? ??? ?? ??????? ?? ????? ???? ?? ???? ?? ???WebService???? ??????? ????????? ??? ????? ???? ???? ??? ?????? ??? ??????? ????????? ???? ?? ????????? ????, ???? ?? ????? ?? ???? ???WebMethod??????? ?????? ??? ?? XML ??? ?? ??? ??? ????? ????? ?? ???? ?????
6. ???? ?? ??? ????? ??? ???? ??????? ??????XMLDocService???? ???? ???? ??? ????? ??:

   [WebMethod]
   public XmlDocument GetXmlDocument()
   {
   // Create an XmlDocument object.
   XmlDocument xmlDocumentObject = new XmlDocument();
   XmlDocumentObject.LoadXml("<book genre=\"novel\" publicationdate=\"1997\" " +
   "      ISBN=\"1-861001-57-5\">" +
   "  <title>Pride And Prejudice</title>" +
   "  <author>" +
   "    <first-name>Jane</first-name>" +
   "    <last-name>Austen</last-name>" +
   "  </author>" +
   "  <price>24.95</price>" +
   "</book>"); 
   
   // Return the created XmlDocument object.
   return( XmlDocumentObject );
   }

   [WebMethod]
   public string GetFirstName( XmlNode XmlNodePassed )
   {
   // Create a new XmLDocument object.
   XmlDocument XmlDocumentObject = new XmlDocument();
   
   // Load the XmlNode into the XmlDocument object.
   XmlDocumentObject.LoadXml( XmlNodePassed.OuterXml );
   
   // Find the first name of the author.
   XmlNodeList XmlNodeListObj = XmlDocumentObject.GetElementsByTagName( "first-name" );
   
   // Return the first name.
   return XmlNodeListObj[ 0 ].ChildNodes[ 0 ].Value;
   }

7. ????? ????????????? ??,??????? ????????? ???? ????? ???
8. XML ??? ???? ?? ??????? ???? ?? ??? XMLDocService.asmx XML ??? ???? ????? ?????? ??? ?? ?? ????? ?? ????? ???? ?? ??? ??????? ???????? ??? ??, URL ?? http://localhost/XMLDocService/XMLDocService.asmx. Microsoft asp.NET ?????? ???? ???? XML ??? ???? ??? ????? XML ??? ?? ????? ???? ?? ?? ????? ?? XML ??? ???? ?? ??????? ??????? ?? ??????? ???? ?? ??? ?? ????? ?? ????? ?? ?? ???? ????

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1. Visual Studio .NET, ??? ????? ???????????? ????????????, ?? ???? ????????????.
2. ?????????????? ??????????, ????? ????????? C# ??????????? ????-????? ????, ?? ???? ???????? ??????????????????????????
3. ?? ????????? ??? ?????? ?? ??? ??? ??????XMLDocService??? ?????
   
   ?? ??? ?? ??????? ???????? ?? ?? ???????? ???? ????? ??? ???????? ???? ????? ??, ?? ??? ???????? ???? ?? ?????? ??? ???? ???? ???????? ???? ??? ??? ?? ???????? ?? ??? ?? ?? ?? ???? ?????????? ?????? ?????????? (URI) ?? ??? ??? ???? ?? SOAP ?????? ?? ??? ????
   1. ????? ????????????????? ??,?????? ??? ??????.
   2. ???????? ?????? ??????????? ????? ???, ??? ???? ??? ?? URL ??????????? ????? ???, ?? ???? ??? ENTER ?????? ??? ?? ??? ???? ?? ????? ???? ?? ??? ??????? ???????? ???, URL ?? http://localhost/XMLDocService/XMLDocService.asmx.
   3. ????? ????,?????? ??????. ???????? ??? ??, ?? ?? ???? ??? (XMLDocService.vsdisco) ??? ????? ?? URL ????? ?? ????? ??????????? ??? ????? ?? ??? ?????????? ??? ??? XMLDocService ???? ?? ???? ?? ??? ???? ?? ????
   4. ??????? ??????? ???????????? ?? ?????? Explorer ?? ??? ?? ????? ???? ??? ????? ??? ?????
4. ?? ??? ???????? ???????? ?? ??????? ?????XMLDocService??? ????? ??? ????? ??? ?????????????????? ?? ??? ???? ???.:

   localhost.XMLDocService myXMLDocService = new localhost.XmlDocService();

5. ???????? ???????? ?? ?????? ??????? ????, ????? ??? ?? ????? ????:

   XmlDocument myXmlDocumentObject = myXMLDocService.GetXmlDocument();

6. ????? ????????????? ??,??????? ??????????? ????????? ????? ???
7. ?? ????? ????? ?????? ????? ??????? ???? ??:
   ?????? 'System.Xml.XmlNode' ?? ??? ' System.Xml.XmlDocument' implicitly ?????? ???? ?? ????
8. ???? invocation ?? ????? ?? ???????????? ????:

   XmlNode myXMLNodeObject = myXMLDocService.GetXmlDocument();

9. ????? ????????????? ??,??????? ??????????? ????????? ????? ??? ?? ????????? ??????????? ??? ???? ????
10. ???? ?? ??? ??? ??? ????XmlNode??? ???XmlDocument?? ????? ?? ???????? ????ImportNode????:

    XmlDocument myXmlDocumentObject = new XmlDocument();
    myXmlDocumentObject.AppendChild(myXmlDocumentObject.ImportNode(myXMLNodeObject,true));

11. ?? ???? ?? ????? ??? ???? ?? ?? ??? ???? ?????? ?? ??? ????:

    string strFirstName = WebServiceObject.GetFirstName( XmlDocumentObject );

12. ???? ?? ????? ??? ????? ?? ??????? ????:

    Console.WriteLine( "The first name of the author is: " +strFirstName );

13. ????? ????????????? ??,??????? ??????????? ????????? ????? ???
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