Android รบกวนผู้รู้ช่วยแนะนำเกี่ยวกับการทำปุ่ม Delete หน่อยครับ พึ่งเริ่มศึกษาใหม่

    @Override
    public boolean onContextItemSelected(MenuItem item) {
    	AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
	    int menuItemIndex = item.getItemId();
		String[] menuItems = Cmd;
		String CmdName = menuItems[menuItemIndex];
	    
	    // Check Event Command
        if ("View".equals(CmdName)) {
          	 Toast.makeText(MainActivity.this,"Your Selected View",Toast.LENGTH_LONG).show();
          	 /**
          	  * Call the mthod
          	  */
        } else if ("Update".equals(CmdName)) {
        	Toast.makeText(MainActivity.this,"Your Selected Update",Toast.LENGTH_LONG).show(); 

			String sMemberID = MyArrList.get(info.position).get("MemberID").toString();
			String sName = MyArrList.get(info.position).get("Name").toString();
			String sTel = MyArrList.get(info.position).get("Tel").toString();
			
			Intent newActivity = new Intent(MainActivity.this,UpdateActivity.class);
			newActivity.putExtra("MemberID", sMemberID);
			startActivity(newActivity);
			
        } else if ("Delete".equals(CmdName)) {

						    // Request to Delete data.
						  	String url = "https://www.thaicreate.com/android/deleteData.php";
							List<NameValuePair> params = new ArrayList<NameValuePair>();
					        params.add(new BasicNameValuePair("sMemberID", MyArrList.get(position).get("MemberID")));
						  
					        String resultServer  = getJSONUrl(url,params);
					        
			                /** Get result delete data from Server (Return the JSON Code)
			                 * StatusID = ? [0=Failed,1=Complete]
			                 * Error	= ?	[On case error return custom error message]
			                 * 
			                 * Eg Login Failed = {"StatusID":"0","Error":"Cannot delete data!"}
			                 * Eg Login Complete = {"StatusID":"1","Error":""}
			                 */
					        String strStatusID = "0";
					        String strError = "Unknow Status";
					        
					        try {
								JSONObject c = new JSONObject(resultServer);
				            	strStatusID = c.getString("StatusID");
				            	strError = c.getString("Error");
							} catch (JSONException e) {
								// TODO Auto-generated catch block
								e.printStackTrace();
							}
					        
							// Prepare Delete
							if(strStatusID.equals("0"))
							{
								// Dialog
								adb2.setTitle("Error! ");
								adb2.setIcon(android.R.drawable.btn_star_big_on); 
								adb2.setPositiveButton("Close", null);
								adb2.setMessage(strError);
								adb2.show();
							}
							else
							{
								Toast.makeText(MainActivity.this, "Delete data successfully.", Toast.LENGTH_SHORT).show();
								ShowData(); // reload data again
							}
	


        }        
    	return true;
    }