C# Interfaces. Implicit implementation versus Explicit implementation

C# Interfaces. Implicit implementation versus Explicit implementation

What are the differences in implementing interfaces implicitly and explicitly in C#?When should you use implicit and when should you use explicit?Are there any pros and/or cons to one or the other?Microsoft's official guidelines (from first

Passing data between controllers in Angular JS?

Passing data between controllers in Angular JS?

I have a basic controller that displays my products,App.controller('ProductCtrl',function($scope,$productFactory){ $productFactory.get().success(function(data){ $scope.products = data; });});In my view I'm displaying this

Returning data from async call in Swift function

Returning data from async call in Swift function

I have created a utility class in my Swift project that handles all the REST requests and responses. I have built a simple REST API so I can test my code. I have created a class method that needs to return an NSArray but because the API cal

How to avoid having class data shared among instances?

How to avoid having class data shared among instances?

What I want is this behavior:class a: list = []x = a()y = a()x.list.append(1)y.list.append(2)x.list.append(3)y.list.append(4)print(x.list) # prints [1, 3]print(y.list) # prints [2, 4]Of course, what really happens when I print is:print(x

This application is modifying the autolayout engine from a background thread, which can lead to engi

This application is modifying the autolayout engine from a background thread, which can lead to engi

I am getting this error This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes.This will cause an exception in a future release. I don't know what is causing this

return new RedirectResult() vs return Redirect()

return new RedirectResult() vs return Redirect()

What is the difference between the following two controller ActionResult return statements:return new RedirectResult("http://www.google.com", false);andreturn Redirect("http://www.google.com"); 1:straight from the source// Copyright (c)

Android emulator shows nothing but blank screen

Android emulator shows nothing but blank screen

I am a complete nOOb to Android programming and trying my hands at it for the first time by going through the tutorials. The problem is that I have created multiple emulators using android 4.4.2 API and none of them show anything but blank

Django: openpyxl saving workbook as attachment

Django: openpyxl saving workbook as attachment

Hi I have a quick question. I didn't find answer in internet maybe someone of you can help me.So i want to save workbook as attachment but I don't know how lets see an example : from openpyxl import Workbook from openpyxl.cell import

Flask 301 Response

Flask 301 Response

My flask app is doing a 301 redirect for one of the urls.The traceback in New Relic is:Traceback (most recent call last): File "/var/www/app/env/local/lib/python2.7/site-packages/flask/app.py", line 1358, in full_dispatch_request rv = s

Pyramid: Custom 404 page returns as “200 OK”

Pyramid: Custom 404 page returns as “200 OK”

I have a custom 404 view defined in my Pyramid app:@view_config(context=HTTPNotFound, renderer='404.pt')def not_found(self, request): return {}It works fine, except that the HTTP status code sent with the content is 200 OK, which is not

WebLogic stuck thread protection

WebLogic stuck thread protection

By default WebLogic kills stuck threads after 15 min (600 s), this is controlled by StuckThreadMaxTime parameter. However, I cannot find more details on how exactly "stuckness" is defined. Specifically:What is the point at which 15 min co

What is the HTTP response code for failed HTTP Delete operation?

What is the HTTP response code for failed HTTP Delete operation?

I have a resources with uri /api/books/122 , if this resource doesn't exist at the point where a client sends HTTP Delete for this resource, what is the appropriate response code from this action? Is it 404 Not Found?Thanks 1:Yes, it wou

how to get getServletContext() in spring mvc Controller

how to get getServletContext() in spring mvc Controller

I need to upload images in my project. How to get the upload path in SpringMVC.The path is;/home/cme/project/eclipse/workspace_12_11/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/fileUploadTester/uploadThe following error;T

Universal Windows project - HttpClient exception

Universal Windows project - HttpClient exception

I'm trying to implement REST client in Universal Windows project (in Windows 10 universal app) using HttpClient, but the following line:var response = _client.GetAsync(address).Result;throws an AggregateException with the following message:

How to send an image from Android client to Node.js server via HttpUrlConnection?

How to send an image from Android client to Node.js server via HttpUrlConnection?

I am trying to send an image to the server using HttpUrlConnection, because it's recommended by Google. I decided to convert the image into Base64 string and send it to the server where I decoded it into .jpg file. But this method is only f

Deterministically creating and tagging EC2 instances

Deterministically creating and tagging EC2 instances

I am creating 3 EC2 instances, and subsequently iterating and tagging each of them.Sometimes the tag request fails, although the instance later appears to be running.Could this be a timing issue? Should I wait a few seconds after creating t

How do I get a tabbed pane component in JSF 2.0 (Sun Mojarra)

How do I get a tabbed pane component in JSF 2.0 (Sun Mojarra)

I am learning/using JSF 2.0 (Sun Mojarra) now and I want to have a tabbed pane in my webapp (single tabs could named be General, Detail1,Detail2,...).How do I achieve this? I haven't found any documetation for this so far :( 1:Others hav

How to get Cross Browser Compatibilty for window.fileReader API of HTML5

How to get Cross Browser Compatibilty for window.fileReader API of HTML5

Hi Html5 developers and HTML4 developers too...I want to know whether is there any way to support window.fileReader API of html5 in IE8 and above.the code below :if(window.fileReader){ alert("supported"); // in html5 works and fires alert

Manually parse part of a response when using Retrofit

Manually parse part of a response when using Retrofit

I'm working with a REST API that returns a JSON document that starts as follows and includes a "collection" of items with string IDs like "ABC". Note the "routes" field, which contains a series of fields called "ABC", "ABD", "ABE" etc, howe

how to pass parameters to an ado.net source in ssis?

how to pass parameters to an ado.net source in ssis?

This is the original query, which works fine using ado.net source and using the .net providers\odbc data provider specified inside the source.SELECT a.FA_CLNT_ID, a.FA_ACCT_NM, a.ACCT_E_DT, a.POL_PER_CURR_DT, a.POL_PER_NEXT_DT, a.FA_ACCT_NU

How can I get the real time in iPhone, not the time set by user in Settings?

How can I get the real time in iPhone, not the time set by user in Settings?

I need to ensure that my app gets the correct time, not the time set by the user in settings.So for instance, once the user starts the app, I'd want to get a timestamp. The user would see the elapsed time on a timer on screen updated every

Android xml merge layout error on inflate

Android xml merge layout error on inflate

I have a CustomView class and I want to use xml layout for it. So, my class extends RelativeLayout, inflates xml layout and tries to attach it to self. public class CustomView extends RelativeLayout{ public CustomView (Context context) {

Get Ajax POST data on php via Javascript call

Get Ajax POST data on php via Javascript call

First I am conface that I am Newbie to php,I am using jquery(knockout js) at client side & PHP at server side. my code.Client side: I am using knockout js(Javascript). to call my PHP service.My Code:self.VMSaveEditUserMode = function () {

Should exceptions be chained in C++? [duplicate]

Should exceptions be chained in C++? [duplicate]

This question already has an answer here: Proper/elegant way of implementing C++ exception chaining? 4 answers How to simulate inner except

what can i put in beforeUnload?

what can i put in beforeUnload?

I would like to have an animation effect which starts when people leave a page. I use this currently:window.onbeforeunload = function (){ alert("test"); console.log("test"); sliderIntervalId = setInterval('SlideDown()',1);}While th