C# เชื่อมต่อ Web Services ที่เป็น PHP แล้ว ภาษาไทยที่แสดง ใน Form C# เป็น ภาษา ต่างดาว

localhost.HelloWorld myHW = new localhost.HelloWorld();
                this.label5.Text = myHW.CallHelloWorld(this.textBox1.Text).ToString();

<?
//include 'connect/connect.php';
require_once("lib/nusoap.php");

//Create a new soap server
$server = new soap_server();

//Define our namespace
$namespace = "http://localhost/nusoap/WebServiceServer.php";
$server->wsdl->schemaTargetNamespace = $namespace;

//Configure our WSDL
$server->configureWSDL("HelloWorld");

// Register our method and argument parameters
$varname = array(
                   'strName' => "xsd:string"
                   );
                   $server->register('HelloWorld',$varname, array('return' => 'xsd:string'));

                   function HelloWorld($std_code)
                   {
                   	//$select = mysql_query("select * from student_data_tb where studentcode = '$std_code' || citizenid = '$std_code'");
                   	//$select_row = mysql_fetch_array($select);
                   	$show = "ทดสอบ";
                   	//return $select_row['prefixname'];
                   	return $show;
                   }

                   // Get our posted data if the service is being consumed
                   // otherwise leave this data blank.
                   $POST_DATA = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : '';

                   // pass our posted data (or nothing) to the soap service
                   $server->service($POST_DATA);
                   exit();
                   ?>