I am working on a project that requires me to connect to a Microsoft Dynamics NAV web service, and get some data. However, we do not have access to this web service from the development environment, so I am unable to add a Web Reference to my project, in the usual way.
Is there a way, to "dynamically" connect to the web reference, in run-time, by providing URL, user, password & domain? Then create dynamic objects, and call the methods of the web service? (So I would make a console application, that only runs on the production environment, because there's the access to the web service)
From my initial research I found a couple of ways, where there's a function, that returns object type objects. I usually have credential problems with this : Unauthorized access (401)
I am very new to these web services, by the way...
Method i've been using so far, without any luck:
internal static object CallWebService(string webServiceAsmxUrl, string serviceName, string methodName, object[] args)
{
System.Net.WebClient client = new System.Net.WebClient();
CredentialCache cc = new CredentialCache();
cc.Add(
new Uri(webServiceAsmxUrl),
"NTLM",
new NetworkCredential("user", "password", "domain"));
client.Credentials = cc;
// Connect To the web service
System.IO.Stream stream = client.OpenRead(webServiceAsmxUrl + "?wsdl");
// Now read the WSDL file describing a service.
ServiceDescription description = ServiceDescription.Read(stream);
///// LOAD THE DOM /////////
// Initialize a service description importer.
ServiceDescriptionImporter importer = new ServiceDescriptionImporter();
importer.ProtocolName = "Soap12"; // Use SOAP 1.2.
importer.AddServiceDescription(description, null, null);
// Generate a proxy client.
importer.Style = ServiceDescriptionImportStyle.Client;
// Generate properties to represent primitive values.
importer.CodeGenerationOptions = System.Xml.Serialization.CodeGenerationOptions.GenerateProperties;
// Initialize a Code-DOM tree into which we will import the service.
CodeNamespace nmspace = new CodeNamespace();
CodeCompileUnit unit1 = new CodeCompileUnit();
unit1.Namespaces.Add(nmspace);
// Import the service into the Code-DOM tree. This creates proxy code that uses the service.
ServiceDescriptionImportWarnings warning = importer.Import(nmspace, unit1);
//THIS IS WHERE IT's NOT COMPLYING. warning will be "NoGeneratedCode"
if (warning == 0) // If zero then we are good to go
{
// Generate the proxy code
CodeDomProvider provider1 = CodeDomProvider.CreateProvider("CSharp");
// Compile the assembly proxy with the appropriate references
string[] assemblyReferences = new string[5] { "System.dll", "System.Web.Services.dll", "System.Web.dll", "System.Xml.dll", "System.Data.dll" };
CompilerParameters parms = new CompilerParameters(assemblyReferences);
CompilerResults results = provider1.CompileAssemblyFromDom(parms, unit1);
// Check For Errors
if (results.Errors.Count > 0)
{
foreach (CompilerError oops in results.Errors)
{
System.Diagnostics.Debug.WriteLine("========Compiler error============");
System.Diagnostics.Debug.WriteLine(oops.ErrorText);
}
throw new System.Exception("Compile Error Occured calling webservice. Check Debug ouput window.");
}
// Finally, Invoke the web service method
object wsvcClass = results.CompiledAssembly.CreateInstance(serviceName);
MethodInfo mi = wsvcClass.GetType().GetMethod(methodName);
return mi.Invoke(wsvcClass, args);
}
else
{
return null;
}
}
It always returns null.
