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03-07-2008, 5:24 AM pmadhav Joined on 03-07-2008 Posts 1 System.InvalidOperationException Hi All, I have been using the Dynwslib for my asp.net application (version 1.5). We are still on asp.net 1.1/VS 2003. The Dynwslib has been mostly working. We have been using the dll to access Webservices/ methods dynamically. Everything seems to be working fine on our local server (IIS 6.0, Windows 2003 server). We can access the WSDL from an external site using IE. I recently posted the web service to my external server and wrote a small sample app to consuming it using Dynwslib. When I consume it using localhost everything works fine. Hoowever when I give the static IP, the behavior is inconsistent. Somethimes I get the exception System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: Client found response content type of '', but expected 'text/xml'. This is being thrown by the object result = mi.Invoke(proxyInstance, paramsArray); call in the InvokeCall() method. I am not specifying any namespace in my webservice, could that be a problem? Appreciate any help on this. Here is the code private void Button1_Click(object sender, System.EventArgs e) { string sDisplayStateRequest= "Test value"; DynamicWebServiceProxy ws = new DynamicWebServiceProxy(); string sWebServiceURL = "http://www.domainname.com/ServiceConnector.asmx?WSDL"; ws.WSDL = sWebServiceURL; string sTypeName = "SC"; ws.TypeName = sTypeName; ws.MethodName = "GetInfo"; ws.AddParameter(new Guid("abbc599f-9618-4e3b-9a19-4a1a0f32fdf0")); ws.AddParameter(sDisplayStateRequest); //This parameter is used to call another method of a web service by the GetDisplayState method ws.AddParameter("http://www.domainname.com/MyService.asmx?WSDL"); object oGetDisplayState = ws.InvokeCall(); string sRetVal = (string)oGetDisplayState; Response.Write(sRetVal); string sTemp=""; } Thanks in Advance Madhav    Report

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