Does C# support multiple inheritance?

C# does not support multiple inheritance (meaning a single class inherits from multiple classes). You can, however, implement multiple interfaces in a single class. As far as chaining together inherited classes, there isn't a limit per-se. Just keep in mind the complexity you will introduce to your system. When using inheritance, make sure you are using it in a "is a" scenario. A dog is an animal....Read more

WCF vs WebAPI

Some fact about WCF : If you need to communicate over pure TCP socket or any other protocol then HTTP use WCF. WCF can communicate is wide range of protocol. Creating services that are transport/protocol independent. Single service with multiple endpoints. Like one WCF service can have multiple endpoints based on clients. For example- One  web application request protocol -> http...Read more

What is event loop in javascript?

I was reading more details on Heap and Stack in JavaScript. I came across video of Philip Roberts where he discuss how event loop works and what is execution process of JavaScript engine. Really nicely explained concept. He also developed tool LOUNE to understand how JavaScript executes and processes requests. Worth listening and understanding as web developer...Read more

Remote Event Receiver - Difference Process Event() And Process One Way Event()

Remote Event Receiver in SharePoint (2013 and more up to date), we go over two methods that are available default when we create a remote event receiver *.svc file (generated by system). These are -- ProcessEvent() ProcessOneWayEvent() Both the methods are always confusing as for their usage. There is very limited information available on the web with respect to these methods. In this way, here...Read more

MVC Controller - Disambiguating actions

When two actions match through routing, MVC must disambiguate to choose the 'best' candidate or else throw an exception. For example: public class ProductsController : Controller{ public IActionResult Edit(int id) { ... } [HttpPost] public IActionResult Edit(int id, Product product) { ... } } This controller defines two actions that would match the URL path /Products/Edit/17 and...Read more

Closure in JavaScript

“…an inner function always has access to the vars and parameters of its outer function, even after the outer function has returned.” -- Douglas Crockford In Non Closure variable value will be lost once function return. And whenever it is called it will be assigned new value. Below is example of non closure. function NonClosureFunct(){ var counter = 0; counter += 1; return counter; } Closure...Read more

SPUtility.js is a JavaScript library used to make modifications to SharePoint's list forms

SPUtility.js is a JavaScript library used to make modifications to SharePoint's list forms (NewForm.aspx and EditForm.aspx in a survey, custom list or library). It works with SharePoint 2007, 2010, and 2013 (including SharePoint Online / Office 365). SPUtility.GetSPField('Title').SetValue('Hello world!'); Features: Set or get field values in Document Libraries, all sorts of List forms (custom...Read more

Create Self Signed Certificate for Development Environment

In the development environment we can use a self-signed certificate, but for production environment we will need a commercial certificate to publish Apps to store. So we will follow below steps to create a self signed certificate. 1. Open IIS Manager, and click on Server Certificates. (start >...Read more

SharePoint 2016 - SharePoint List in SharePoint Hosted App

In this post we will develop a SharePoint List in SharePoint hosted App. SharePoint apps designed to provide specific functionality in SharePoint. So in this article we will talk about a simple scenario of adding the list. That is how we are normally going to use and develop the Apps on SharePoint....Read more

Error -- SharePoint 2013 Apps: The provided App differs from another App with the same version and product ID

I was doing development in Visual Studio 2015 and while was trying to deploy SharePoint Add-in it gave error. Error : Error occurred in deployment step 'Install SharePoint Add-In' the provided app differ from The provided App differs from another App with the same version and product ID. Reason : You are not allowed to deploy Apps with the Farm Account. Create a new User in Active Directory.  Add...Read more