How to insert data to Mobile Services - Android (Windows Azure)

package com.example.thaicreate;

public class MyMember {
	
	@com.google.gson.annotations.SerializedName("id")
	private int mId;
	
	@com.google.gson.annotations.SerializedName("username")
	private String mUsername;
	
	@com.google.gson.annotations.SerializedName("password")
	private String mPassword;	
	
	@com.google.gson.annotations.SerializedName("name")
	private String mName;	
	
	@com.google.gson.annotations.SerializedName("tel")
	private String mTel;		
	
	@com.google.gson.annotations.SerializedName("email")
	private String mEmail;	
	
	public MyMember() {
		// empty
	}
	
	public MyMember(String username, String password, 
			String name,String tel,String email) {
		this.setUsername(username);
		this.setPassword(password);
		this.setName(name);
		this.setTel(tel);
		this.setEmail(email);
	}
	
	public final void setUsername(String username) {
		mUsername = username;
	}
	
	public final void setPassword(String password) {
		mPassword = password;
	}
	
	public final void setName(String name) {
		mName = name;
	}
	
	public final void setTel(String tel) {
		mTel = tel;
	}
	
	public final void setEmail(String email) {
		mEmail = email;
	}
}

public class MainActivity extends Activity {
	
	private MobileServiceClient mClient;
	private MobileServiceTable<MyMember> mMyMember;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        /*** Create to Mobile Services ***/
        try {
			mClient = new MobileServiceClient(
				      "https://thaicreate.azure-mobile.net/",
				      "QUjngFknhHZjdaGgYAAzdoXkOzKoxi24",
				      this);
			
		} catch (MalformedURLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
        
        /*** Create getTable ***/
        mMyMember = mClient.getTable(MyMember.class);
        
        final EditText txtUsername = (EditText)findViewById(R.id.txtUsername); 
        final EditText txtPassword = (EditText)findViewById(R.id.txtPassword); 
        final EditText txtName = (EditText)findViewById(R.id.txtName); 
        final EditText txtEmail = (EditText)findViewById(R.id.txtEmail); 
        final EditText txtTel = (EditText)findViewById(R.id.txtTel); 
		
        final AlertDialog.Builder adb = new AlertDialog.Builder(this);
        
        // btnSave
        final Button btnSave = (Button) findViewById(R.id.btnSave);
        // Perform action on click
        btnSave.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
            	if (mClient == null) {
            		AlertDialog ad = adb.create();
            		ad.setMessage("Cannot connect to Windows Azure Mobile Service!");
            		ad.show();
            	}
            	else
            	{
                	/*** Item for Insert ***/
                	MyMember item = new MyMember();
                	item.setUsername(txtUsername.getText().toString());
                	item.setPassword(txtPassword.getText().toString());
            		item.setName(txtName.getText().toString());
            		item.setTel(txtTel.getText().toString());
            		item.setEmail(txtEmail.getText().toString());
            		
            		// Insert the new item
            		mMyMember.insert(item, new TableOperationCallback<MyMember>() {

            			public void onCompleted(MyMember entity, Exception exception, ServiceFilterResponse response) {
            				
            				if (exception == null) {
                        		AlertDialog ad = adb.create();
                        		ad.setMessage("Register Data Successfully.");
                        		ad.show();           					
            				} else {
                           		AlertDialog ad = adb.create();
                        		ad.setMessage("Error : " + exception.getCause().getMessage());
                        		ad.show();
            				}

            			}
            		});
            	}
            	
            }	
        });
        
        
    }