Dynamic Webservice call

/// <Summary>
/// Call the remote WebService method based on the specified information
/// </Summary>
/// <Param name = "url"> http address of WebService </param>
/// <Param name = "namespace"> namespace of the WebService to be called </param>
/// <Param name = "classname"> name of the WebService class to be called (excluding the namespace prefix) </param>
/// <Param name = "methodname"> method name of the WebService to be called </param>
/// <Param name = "args"> parameter list </param>
/// <Returns> execution result of WebService </returns>
/// <Remarks>
/// If the call fails, an Exception is thrown. During the call, an exception is intercepted as appropriate.
/// Exception information may occur in two places:
/// 1. CompileAssembly fails when a WebService is dynamically constructed.
/// 2. The WebService itself fails to be executed.
/// </Remarks>
/// <Example>
/// <Code>
/// Object obj = InvokeWebservice ("http: // localhost/GSP_WorkflowWebservice/common. asmx "," Genersoft. platform. service. workflow "," Common "," GetToolType ", new object [] {" 1 "});
/// </Code>
/// </Example>
Private object InvokeWebservice (string url, string @ namespace, string classname, string methodname, object [] args)
{Try
{
System. Net. WebClient wc = new System. Net. WebClient ();
System. IO. Stream stream = wc. OpenRead (url + "? WSDL ");
System. Web. Services. Description. ServiceDescription sd = System. Web. Services. Description. ServiceDescription. Read (stream );