I am trying to use a webservice with infopath forms.

I have created a dataconnection for the webservice.

I am using VS.NET (C#.NET) for accessing the webservice using the following code in onload event of the ...

CodeSnippet

[InfoPathEventHandler(EventType=InfoPathEventType.OnLoad)]

public void OnLoad(DocReturnEvent e)

{

DataObject dtObj= thisXDocument.DataObjects["GetWorkFlowDetails"] ;

IXMLDOMDocument2 domTmp=(IXMLDOMDocument2)dtObj.DOM;

domTmp.setProperty("SelectionNamespaces",

" xmlns:dfs=\"schemas.microsoft.com/.../dataFormSolution\""

+ " xmlns:tns=\"http://tempuri.org/\"");

domTmp.selectSingleNode("/dfs:myFields/dfs:queryFields/tns:GetWorkFlowDetails/tns:WorkFlowType").text="ABSR";

dtObj.Query();

string currentAction= domTmp.selectSingleNode("/dfs:myFields/dfs:dataFields/tns:GetWorkFlowDetailsResponse/tns:GetWorkFlowDetailsResult/ABSR/CurrentActions").text;

thisXDocument.UI.Alert (currentAction);

}

I am getting the following error.

System.NullReferenceException
Object reference not set to an instance of an object.
at Leave_Request.Leave_Request.OnLoad(DocReturnEvent e) in c:\inetpub\wwwroot\leave request\formcode.cs:line 63
at Microsoft.Office.Interop.InfoPath.SemiTrust._XDocumentEventSink2_SinkHelper.OnLoad(DocReturnEvent pEvent)

But when I try to access the same through browser, it works fine.
I am unable to understand the exact problem. Can someone help me out in solving this issue.