<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <EditText 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:text="Type Student no" 
    android:id="@+id/editText1">                           
    </EditText>
    
    <Button 
    android:text="Get Name" 
    android:id="@+id/button1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content">
    </Button>
    
    <TextView 
    android:text="from Web service" 
    android:id="@+id/textView1" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content">
    </TextView>
    
</LinearLayout>

package com.webservice;             //In Here Your package com."    your one     ";
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;



import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Main extends Activity 
{
    /** Called when the activity is first created. */
    private static final String SOAP_ACTION = "http://tempuri.org/findContact";
    
    private static final String OPERATION_NAME = "findContact";// your webservice web method name
    
    private static final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";
    
    private static final String SOAP_ADDRESS = "http://10.0.2.2:1506/WebSite3/Service.asmx";
 
// for the SOAP_ADDRESS, run your web service & see 
//your web service Url :1506/WebSite3/Service.asmx ,1052 will be change according to your PC

    TextView tvData1;
    EditText edata;
    Button button;
    String studentNo;
//http://localhost:1827/WebSite1/Service.asmx/HelloWorld
   
    //http://10.0.2.2:1827/WebSite1/Service.asmx
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        tvData1 = (TextView)findViewById(R.id.textView1);
       
        
        button=(Button)findViewById(R.id.button1);
        
        button.setOnClickListener(new OnClickListener() {
            
            public void onClick(View v) {
                  SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,     OPERATION_NAME);
                    PropertyInfo propertyInfo = new PropertyInfo();
                    propertyInfo.type = PropertyInfo.STRING_CLASS;
                    propertyInfo.name = "eid";
                    
                    edata =(EditText)findViewById(R.id.editText1);
                    studentNo=edata.getText().toString();
                    
                    request.addProperty(propertyInfo, studentNo);
                            
                            SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                            SoapEnvelope.VER11);
                            envelope.dotNet = true;
                            
                            envelope.setOutputSoapObject(request);
                            
                            HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
                            
                            try  {                    
                            httpTransport.call(SOAP_ACTION, envelope);                    
                            Object response = envelope.getResponse();                    
                            tvData1.setText(response.toString());                    
                            }  catch (Exception exception)   {
                                          tvData1.setText(exception.toString()+"  Or enter number is not Available!");                    
                            }
                    
                    tvData1 = (TextView)findViewById(R.id.textView1);
                
            }
        });
        
                  
        //client = new DefaultHttpClient();            
        //new Read().execute("text");
 }
}

< uses-permission   android:name =”android.permission.INTERNET”  />  

< application   android:permission =”android.permission.INTERNET” >