Web service with Xml

Question

User1551896424 posted

Hi ,

 I have to create web service which will take XML file as an parameter, process it and send XML file as an response.

Please Guide me as I am new to Web services.

What I tried Is,

WebService Function :

[WebMethod]
public System.Xml.XmlDocument Function_Name(System.Xml.XmlDocument RequestDoc)
{

         // Process RequestDoc here

       // and created new XMl as follows

      System.Xml.XmlDocument ResponseDoc = new System.Xml.XmlDocument();

      // Geneted ResponseDoc file here

  return ResponseDoc ;

}

WebService Call Function:

     protected void Page_Load(object sender, EventArgs e)
    {

         StringBuilder strXml = new StringBuilder();

        strXml.Append("<Display>");
        strXml.Append("<StoreCode>1234</StoreCode>");
        strXml.Append("<TerminalID>02</TerminalID>");
        strXml.Append("<TransDate>0123456789</TransDate>");
        strXml.Append("<Vdtls>");
        strXml.Append("<VID> VVD0000021</VID>");
        strXml.Append("<VID> VVD0000022</VID>");
        strXml.Append("<VID> BVD0003213</VID>");
        strXml.Append("</Vdtls>");
        strXml.Append("</Display>");

        XmlDocument xmlDoc = new XmlDocument();
        xmlDoc.LoadXml(strXml.ToString());

        WebService ServiceObj = new WebService();
        System.Xml.XmlNode nd = ServiceObj.Function_Name(xmlDoc);

    }

On this above fucntion call geeting an Exception.

Please can any one help regarding this functionality in Web Services. IS it possible ?

Or please Guide to overcome this functionality.

Thanking U..

Answer 1

User-2001332922 posted

Web service is a add reference .dll in the main project then consumed as object like

webService1 ws=new webService1();

then ws.Function_name();

hint as you could go further

StringBuilder strXml = new StringBuilder();

        strXml.Append("<Display>");
        strXml.Append("<StoreCode>1234</StoreCode>");
        strXml.Append("<TerminalID>02</TerminalID>");
        strXml.Append("<TransDate>0123456789</TransDate>");
        strXml.Append("<Vdtls>");
        strXml.Append("<VID> VVD0000021</VID>");
        strXml.Append("<VID> VVD0000022</VID>");
        strXml.Append("<VID> BVD0003213</VID>");
        strXml.Append("</Vdtls>");
        strXml.Append("</Display>");

        XmlDocument xmlDoc = new XmlDocument();
        xmlDoc.LoadXml(strXml.ToString());

        WebService ServiceObj = new WebService();
        System.Xml.XmlNode nd = ServiceObj.Function_Name(xmlDoc);     

remove and try the snippet as guided. also please come with either data or information one you consider is enough

Answer 2

User1551896424 posted

Here I am upto what u guid. Geeting successfull call to a function of service.

I need an example to pass an XML file to service and there parse it and again send response in as XML Document.

Thank You..

Answer 3

User-2001332922 posted

Here I am upto what u guid. Geeting successfull call to a function of service.

congratulation.

I need an example to pass an XML file to service and there parse it and again send response in as XML Document.

May you find relevant to your requirement refer

http://forums.asp.net/t/1755909.aspx/1?can+a+web+service+return+an+html+formatted+file

Also try to access the web serivce at computer browser so that you get to know that the code is working. web service output is XML

you may need to read: WSDL and related document

Answer 4

User-488622176 posted

what exception do you get?

For webservices it is better to use native system objects (string, int, double, bool, ...) or DTO's as input & output parameters, instead of complex objects such as XmlDocument. 

Furthermore, I'm not seeing you use the function as a web service. Please read this in order to build & call the web service : http://msdn.microsoft.com/en-us/library/6h0yh8f9(v=vs.80).aspx