internal static object CallWebService(string webServiceAsmxUrl, string serviceName,string methodName, object[] args)
System.Net.WebClient client = new System.Net.WebClient();
// 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);
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 = newCompilerParameters(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;
}
