ksoap2 call WCF interfaces Tip Cannot serialize: 11.0

I am learning to develop Andriod program, we encounter a very depressed, I was in the top of the server-side WCF service implements a simple addition, subtraction four functions, parameters are two double type data. For example, I would like to achieve 11 + 12 =? But when the client calls the phone always throws an exception,

e RuntimeException (id = 830082723416)
cause RuntimeException (id = 830082723416)
detailMessage "Cannot serialize: 11.0" (id = 830082724304)
stackState (id = 830082724336)
stackTrace null
Server-side code is as follows:

 
public class Demo: Interface 
{

# Region Interface Members 

public double Add (double a, double b) 
{
return a + b; 
} 

public double subtract (double a, double b) 
{
return a - b; 
} 

public double Multiply (double a, double b) 
{
return a * b; 
} 

public double Divide (double a, double b) 
{
if (b == 0) 
return 0; 
else return a / b; 
} 

# Endregion 
} 

Interface:

 
[ServiceContract] 
public interface Interface 
{
[OperationContract] 
double Add (double a, double b); 
[OperationContract] 
double subtract (double a, double b); 
[OperationContract] 
double Multiply (double a, double b); 
[OperationContract] 
double Divide (double a, double b); 
} 

This is the complete code for the client:

 
public class Android_WCF_CalculateActivity extends Activity {

private static final String [] m_Operators = {"+", "-", "*", "/"}; 
private static final String m_Namespace = "http://tempuri.org/"; 
private static final String m_URL = "http://192.168.1.97:8000/Post/Service/Demo"; 
private static final String m_Soap = "http://tempuri.org/Interface/"; 

private TextView m_TextA, m_TextB, m_TextResult; 
private Spinner m_SpOperators; 
private Button m_BtnOK, m_BtnCancel; 

private ArrayAdapter  adapter; 

/ ** Called when the activity is first created. * / 
@ Override 
public void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState); 
setContentView (R.layout.main); 

Init (); 
} 

private void Init () {
m_TextA = (TextView) this.findViewById (R.id.editText1); 
m_TextB = (TextView) this.findViewById (R.id.editText2); 
m_TextResult = (TextView) this.findViewById (R.id.editText3); 
m_SpOperators = (Spinner) this.findViewById (R.id.spinner1); 
m_BtnOK = (Button) this.findViewById (R.id.button2); 
m_BtnCancel = (Button) this.findViewById (R.id.button1); 

adapter = new ArrayAdapter  (this, android.R.layout.simple_spinner_item, 
m_Operators); 
adapter.setDropDownViewResource (android.R.layout.simple_spinner_dropdown_item); 
m_SpOperators.setAdapter (adapter); 

BtnOK_Click (); 
BtnCancel_Click (); 
} 

private void BtnOK_Click () {
m_BtnOK.setOnClickListener (new OnClickListener () {
public void onClick (View v) {
String methodName; 
String item = m_SpOperators.getSelectedItem () toString ();. 
if ("+" == item) 
methodName = "Add"; 
else if ("-" == item) 
methodName = "subtract"; 
else if ("*" == item) 
methodName = "Multiply"; 
else 
methodName = "Divide"; 
double value1 = Double.parseDouble (m_TextA.getText () toString ().); 
double value2 = Double.parseDouble (m_TextB.getText () toString ().); 
SoapObject requet = new SoapObject (m_Namespace, methodName); 
requet.addProperty ("a", value1); 
requet.addProperty ("b", value2); 

SoapSerializationEnvelope envelope = 
new SoapSerializationEnvelope (SoapEnvelope.VER11); 
envelope.bodyOut = requet; 
envelope.dotNet = true; 
HttpTransportSE transport = new HttpTransportSE (m_URL); 
transport.debug = true; 
try {
transport.call (m_Soap + methodName, envelope); 
SoapObject response = (SoapObject) envelope.bodyIn; 
m_TextResult.setText (response.toString ()); 
} Catch (Exception e) {
e.printStackTrace (); 
} 
} 
}); 
} 

private void BtnCancel_Click () {
m_BtnCancel.setOnClickListener (new OnClickListener () {
public void onClick (View v) {
Android_WCF_CalculateActivity.this.finish (); 
} 
}); 
} 
} 

This is the WSDL file:

 
 
 
 
 < br /> 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 http://192.168.1.97:8000/Post/Service/Demo  
 
 
 

The above is a complete code, I hope to help find out why. .<-! Main posts under Banner (D4) -><-! Posts under the main text (D5) ->
Reply:
Answered. . . . Their top
Reply:
. . Halo nobody. . Today, the last one. . Saying, moderators save Jia
Reply:
I advise you a ah, you are now the best way is to rewrite the server-side code string into the receiver, and then cast. ksoap ills, can not transmit double type, those who know, please tell me, I want to know for a long time, and once I program encountered this situation, we must do a lot of trouble.
Reply:
I advise you a ah, you are now the best way is to rewrite the server-side code string into the receiver, and then cast. ksoap ills, can not transmit double type, those who know, please tell me, I want to know for a long time, and once I program encountered this situation, we must do a lot of trouble.
Reply:
Thank you, I'll try that too pulled. .
Reply:

The reply was deleted at the moderator 2012-04-16 16:44:00

Reply:
Too thank the 3rd floor, the problem is solved
Reply:
Why do I call transport.call () always being given it
Reply:
No problem with java main function test, put android Underneath there is a problem
Reply:
Code does
Reply:

reference to the 7th floor a175059525 reply:

too thank the 3rd floor, the problem is solved

ask how to solve? Seeking to share, I have encountered this problem
Reply:
I'm not the type of transmission line LIST, the landlord how to solve