How to delete data in 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 setId(int id) {
		mId = id;
	}	
	public int getId() {
		return mId;
	}
	
	public final void setUsername(String username) {
		mUsername = username;
	}
	public String getUsername() {
		return mUsername;
	}
	
	public final void setPassword(String password) {
		mPassword = password;
	}
	public String getPassword() {
		return mPassword;
	}
	
	public final void setName(String name) {
		mName = name;
	}
	public String getName() {
		return mName;
	}	
	
	public final void setTel(String tel) {
		mTel = tel;
	}
	public String getTel() {
		return mTel;
	}	
	
	public final void setEmail(String email) {
		mEmail = email;
	}
	public String getEmail() {
		return mEmail;
	}	
}

//** Select Record ***//
	mMyMember.where().field("id").eq(currentItem.getId())
	 .execute(new TableQueryCallback<MyMember>() {
		
		public void onCompleted(List<MyMember> result, int count, Exception exception, 
				ServiceFilterResponse response) {
			
			if (exception == null) {
				MyMember item = result.get(0);
				// Delete Record ***/
				mMyMember.delete(item, new TableDeleteCallback() {
				    public void onCompleted(Exception exception, 
					    ServiceFilterResponse response) {
					if(exception == null){
						Toast.makeText(MainActivity.this, "Delete Data Successfully", Toast.LENGTH_SHORT).show();
					}
					else
					{
							Toast.makeText(MainActivity.this, "Delete Failed!", Toast.LENGTH_SHORT).show();
							Log.d("Error : ",exception.getMessage());   	
					}
				    }
				});