XAML bind BitmapImage ViewModel property

I have problem with update listbox from view model class. I use Caliburn Micro framework. My scenario is here: I bind property of type bindableCollection on listbox: Code from view model: private...

Request Attributes not available in jsp page when using sendRedirect from a servlet

I am new to jsp and servlet. My scenario is as follows I have a jsp page which have a form in it. with two fields. The code snipet of the jsp page is as follows. MyFirstJSP.jsp file <body> <h1>...

exception 'Zend_Loader_PluginLoader_Exception' with message 'Plugin by name 'Friends' was not found in the registry; used paths:

Hi Im using Socialengine 4.5 and I'm getting the following error. Can someone help me determine the reason, based on the error message and the stack trace? Error: Error Code: 8094cd exception...

TemplateView in Django with custom status code

I have internal account privacy permissions in my project(e.g. only friends can see profile page of user) and I want to have custom permission denied page for this case. Is there any way to return...

Javascript callback function on a separate thread

Javascript is single threaded. So does the callback function and it's containing function execute on the same thread as the main loop/event loop? database.query("SELECT * FROM hugetable",...

React unit test with jest in es6

I am pretty new in react world and trying to write simple friendslist application. I wrote my friends store in es6 style and using babel as transpiler from es5 to es6. import AppDispatcher from...

TypeError: Cannot read property 'calls' of undefined

I am trying to write a unit test for my store in react application. Unit test looks like: import FRIENDS from '../../constants/friends'; import FriendsStore from...

difficulty with search url in django

I am relatively new to Django and while trying to implement a search feature in my site, I am having difficulty with setting the URL in urls.py. My search url dispatcher looks like the...

Optimising ifTrue:ifFalse: in Smalltalk

The Smalltalk Blue Book says that the compiler optimises ifTrue:ifFalse: and friends using special opcodes, so as to avoid having to create closures and do dynamic dispatch to the actual Boolean...

Dynamic Initialization of Flux Stores

How is a Flux based system meant to handle an uninitialized store. For a variety of reasons, it makes sense to only initialize a store when that data is first requested. If I'm designing a...

push silent notification through GCM to Android/IOS

I'm seeking to send an state update to an application, which can (or not), be silent. For example, if the user gets a new message from one of their friends I want to send such message and be able...

Dispatch queue not waiting

The situation is I need to loop through multiple objects and make a network call on each. After all of the network calls are finished, I will call my completion block with all of the data that I...

What are the disadvantages of using one big React component?

What are the disadvantages of using one big React component? I have a deep experience using webpack, browserify, AngularJS, ES6, NPM and other similar web framework. I am new to React. I want to...

Creating a grid in admin panel on click of a dropdown option magento 1.7.0.2

I'm developing a sub-module in the admin panel. The first page grid shows the list of the users(Referrers / Parent users) and their total commission. In the "Actions" tab there's a drop-down, on...

Spring Social Twitter HTTP Status 405 - Request method 'POST' not supported

Friends I am using Spring Mvc 4.2.5, Spring Security 4.0.4 , Spring Social 1.1.2 to integrate with twitter api.everything is fine upto connectcontroller handling get /connect/twitter,/connect ....

Swift: Multiple async requests in order. How to wait for previous request to finish?

As part of the authentication process in my app, users can sign in using their Facebook account - I'm using the Facebook iOS SDK to handle this process. Once authentication is complete, I make a...

How send PUT request from JSP form with Spring tag

I have jsp file, where there is a form: <form:form modelAttribute="user" class="form-horizontal" method="put" enctype="multipart/form-data" action="edit" ...

What happens to Dispatch Queues when UIViewController is Deallocated?

I am trying to better understand retain cycles, especially relative to Dispatch Queues. I am working with AVFoundation and managing an AVCaptureSession on a sessionQueue: private let sessionQueue...

How to check if two asynchronous tasks are done with success

What is the best and easiest way to implement this flowchart in a function? Right now I'm using two dispatch groups but I need to check if they're both done, and not only when they finish. If they...

HTTP Status 500 - can't instantiate DispatcherServlet

Yet again another HTTP Status 500 - Error instantiating servlet class org.springframework.web.servlet.DispatcherServlet Please could you guys (those of you who understand it) write a guide to...

react-redux props in container are not updated when state chage occur

I am new to react redux, and trying to make frineds search function with mock-api call(https://github.com/DerekCuevas/friend-list/blob/master/redux-saga-solution/api/index.js). In this project, I...

IOS Swift Nested DispatchGroup for Nested Network requests handling arrays

I'm experiencing crashes and I'm not too sure how to handle the situation with nested dispatchgroup inside a dispatchgroup. I know I'm doing something wrong and getting crashes and would like some...

How do I properly dispatch actions inside the React Lifecycle Methods?

How do I properly dispatch actions in React Lifecycle Methods? Hello, friends I have an action called checkSession() inside my very parent component (App.jsx). This action helps me to get user...

Dispatch Rails Controller Action Outside of HTTP context (not in a unit test)

I maintain a mature codebase that uses Rails as an API. The Rails app also does some things with MQTT, a realtime, non-web, non-HTTP protocol. Some users have requested the ability to simulate the...

Dispatching Socket.io API response to React Components using Redux

I'm receiving the data, but the issue is I'm only able to access it inside of the same file api.js. As I can tell, it's not returning any value. I did a lot of variations of this code snippets....

Why below it is throwing TypeError: dispatch is not a function?

Contxet.js File Below:- import React, { Component } from "react"; const Context = React.createContext(); const reducer = (state, action) => { switch (action.type) { case "DELETE_CONTACT": ...

NgRx Call dispatch Action in Angular router guard will execute infinite loop

*Story:* Hi everyone. I am a newbies in use NgRx library. In my angular project I use router guard to prevent unauthenticated user to unauthenticated website. My ideal is call an rest api to...

Flutter Get JSON and return result

So I tried to follow the photo example for flutter JSON - the example works but when I tried to exit the JSON http://api.radiomedia.com.au/api-access/news I ran into an issue which the example...

discord.js bot working locally but not on Heroku

I have been attempting to run my discord.js bot on Heroku but I am having trouble getting my bot to join voice channels. Whenever I run my bot locally, everything works well, but when I host it on...

CoreML / MLModelConfig preferredMetalDevice - understanding device placement heuristics

*TL/DR :* Is there any public document that clearly states CoreML's strategy for GPU device placement when running inference models on macOS? How does it decide if it should run on integrated,...