How to call .net WebService from MFC dll written using .net 2003 I

[Sathya]

Hi,

I have a vb.net webservice which takes XMLDocument as a parameter and
returns bool. Signature of the method is some thing like this
AddXmlEmpDetail s(xmlEmp as XMLDocument) as Boolean. I am able to call this
method from vb.net desktop client and add a record to the database(this I
used to test if there is any problem in the webservice).

My main requirement is to create a C++(native dll) wrapper what is
recognized by a non microsoft application.

For my testing purpose I am doing the following.

I created a MFC dll (wrapper) using .net 2003 IDE. I created a win32
client using .net 2003 IDE.

I am able to use other webmethods in my wrapper like GetXmlEmpdetail s
which returns an XMLDocument.

I am facing a problem when I am calling AddXmlEmpDetail s(webmethod) in
my wrapper. It say error '500' basically resource not found. I did a debug
and found out that the xml content that I am sending to the webMethod in BSTR
formate is getting changed. For example xml content that i am passing is
like this
[

<Employee><Empl oyeeDetails><Em pID>E116</EmpID><EmpName> Ram</EmpName><EmpAge >35</EmpAge><EmpAddr ess>Mumbai</EmpAddress></EmployeeDetails ></Employee>

]

internally when the soap body is getting built, the content gets changed to
[
<Employee><Empl oyeeDetails><Em pID>E116</EmpID><EmpName> Ram</EmpName><EmpAge >35</EmpAge><EmpAddr ess>Mumbai</EmpAddress></EmployeeDetails ></Employee>

]

because of which I show an error saying invalid node etc.,

Following is what I have code

I have added an com reference for MSXML2.dll

############### ############### ########
[CODE 1
bool CEmpInfoWrapper App::AddEmpDeta ilsWrapper(char chrEmpID[11],char
chrEmpName[26],int intEmpAge,char chrEmpAddress[51])
{
CEmpInfo *webEmpInfoClas s;
HRESULT hr;

webEmpInfoClass =new CEmpInfo();
hr=::CoInitiali ze(NULL);
bool bFunctionStatus ;
bFunctionStatus =false;

CComPtr <IXMLDOMDocumen t> EmpXmlDoc;
hr = EmpXmlDoc.CoCre ateInstance(__u uidof(DOMDocume nt));

bFunctionStatus = true;
//GenerateEmpXml is a user defined function which is also
pasted below
bFunctionStatus =
GenerateEmpXml( chrEmpID,chrEmp Name,intEmpAge, chrEmpAddress,E mpXmlDoc);

if (bFunctionStatu s == false)
{
delete(webEmpIn foClass);
CoUninitialize( );
return bFunctionStatus ;
}

hr=EmpXmlDoc->save(CComVaria nt("C:\\temp\\b eforeadd.xml")) ;

BSTR bstrEmpName;
_bstr_t btEmpName;

EmpXmlDoc->get_xml(&bstrE mpName);

bFunctionStatus =false;

hr=webEmpInfoCl ass->AddXmlEmpDetai ls(bstrEmpName, &bFunctionStatu s);
int errorcode=HRESU LT_CODE(hr);
if (SUCCEEDED(hr))
{
delete(webEmpIn foClass);
CoUninitialize( );
return bFunctionStatus ;
}
else
{
delete(webEmpIn foClass);
CoUninitialize( );
return bFunctionStatus ;
}

}

END OF CODE1]############### ############### ##

############### ############### ############
[Code 2

bool CEmpInfoWrapper App::GenerateEm pXml(char chrEmpID[11],char
chrEmpName[26],int intEmpAge,char chrEmpAddress[51],CComPtr <IXMLDOMDocumen t>
&Root)
{
HRESULT hr1;
hr1=::CoInitial ize(NULL);

//CComPtr <IXMLDOMDocumen t> Root;
CComPtr<IXMLDOM Node> node;
CComPtr<IXMLDOM Node> OddNodeAddress;
CComPtr<IXMLDOM Node> EvenNodeAddress ;
CComPtr <IXMLDOMElement > docElement;
//new
CComPtr <IXMLDOMProcess ingInstruction> xmlPrsInst;
_bstr_t btTarget,btData ;
btTarget = "xml";
btData = "version=\"1.0\ "";
hr1 =
Root->createProcessi ngInstruction(b tTarget.Detach( ),btData.Detach (),&xmlPrsInst) ;
hr1 = Root->appendChild(xm lPrsInst,&EvenN odeAddress);
xmlPrsInst.Rele ase();
EvenNodeAddress .Release();
//end of new
//RootElement
hr1 =
Root->createNode(CCo mVariant(NODE_E LEMENT),CComBST R("Employee"),N ULL,&node);
hr1 = Root->appendChild(no de,&OddNodeAddr ess);
node.Release();


//ParentElement
hr1 =
Root->createNode(CCo mVariant(NODE_E LEMENT),CComBST R("EmployeeDeta ils"),NULL,&nod e);
hr1 = OddNodeAddress->appendChild(no de,&EvenNodeAdd ress);
node.Release();
OddNodeAddress. Release();

//First ChildElement
hr1 =
Root->createNode(CCo mVariant(NODE_E LEMENT),CComBST R("EmpID"),NULL ,&node);
node->put_text(CComB STR(chrEmpID));
hr1 = EvenNodeAddress->appendChild(no de,&OddNodeAddr ess);
node.Release();
OddNodeAddress. Release();
//Second ChildElement
hr1 =
Root->createNode(CCo mVariant(NODE_E LEMENT),CComBST R("EmpName"),NU LL,&node);
node->put_text(CComB STR(chrEmpName) );
hr1 = EvenNodeAddress->appendChild(no de,&OddNodeAddr ess);
node.Release();
OddNodeAddress. Release();

//Third ChildElement
hr1 =
Root->createNode(CCo mVariant(NODE_E LEMENT),CComBST R("EmpAge"),NUL L,&node);
char strEmpAge[10];

itoa(intEmpAge, strEmpAge,10);
node->put_text(CComB STR(strEmpAge)) ;
hr1 = EvenNodeAddress->appendChild(no de,&OddNodeAddr ess);
node.Release();
OddNodeAddress. Release();

//Forth ChildElement
hr1 =
Root->createNode(CCo mVariant(NODE_E LEMENT),CComBST R("EmpAddress") ,NULL,&node);
node->put_text(CComB STR(chrEmpAddre ss));
hr1 = EvenNodeAddress->appendChild(no de,&OddNodeAddr ess);
node.Release();
OddNodeAddress. Release();

hr1=Root->save(CComVaria nt("C:\\temp\\v c.xml"));
//Root.Release();
node.Release();
OddNodeAddress. Release();
EvenNodeAddress .Release();
CoUninitialize( );

//bFunctionStatus = true;
//return Root;
return true;
}
END OF CODE 2]############### ############### ##
I am unable to send data from my C++ application to my webservice
which accepts data in xmldocument form.

Any help or suggesting in this regards? you could also reply to me
on my mail address: ag***@hotmail.c om