To update installed node package
1.) Delete nodejs folder from C:\Program Files (x86)\nodejs or location where its installed
2.) Download latest installer from https://nodejs.org/en/download/ and reinstall
To Update angular command line interface
npm uninstall -g angular-cli
npm cache clean
npm install -g angular-cli@latest
string filePath = “file://” + path + txtTitle.Text;
var mmsIntent = new Intent(Android.Content.Intent.ActionSend);
mmsIntent.PutExtra(Android.Content.Intent.ExtraSubject, “audio is in the attachment”);
mmsIntent.PutExtra(“sms_body”,”Please see audio attachment”);
This option is only available in Release Mode.
From Build Mode to Release From Visual Studio ToolBar and this option will be enabled
While working on xamarin in visual studio once you install packages that have dependency on other packages say Android.Support.v4 or Android.Support.v7.CardView sometimes you get below error
If you are working on Xamarin in Visual studio and break point is not getting hit.Try below stuff
Check if the directory where you have your project doesn’t contain any special characters say “(” , “)”
1.) Delete bin, obj folders
2.) Delete *.user files
3.) Clean Solution
4.) Rebuild Solution
Hope this helps someone
Reference types are always passed by reference so what’s the difference between passing a reference type by value or by ref keyword. Let’s try to understand by some code samples:
Let’s say we have a class MyClass defined below, Class in .Net is a reference type as you should know.
class Reftype { public int i; }
Value type vs Reference type .net
.Net types are broadly classified into 2 categories based on storage:
Values types are allocated on Stack whereas reference types are allocated on Heap. Continue reading
Q.) What are patterns ?
Ans.) Patterns are building blocks of software architecture.
Q.) What are anti-patterns?
Ans.) Wrong or half cooked solutions which have been accepted widely as solutions to a known problem are called anti-patterns. Continue reading
Web forms uses page controller or base controller design pattern where as MVC uses Front Controller design pattern.
Page Controller:
Page receives request from IIS and call controllers method. In traditional web forms all pages (View) inherit from System.Web.UI.Page class which has a code behind class acting as a controller. Continue reading
Actions in Asp.Net MVC returns ActionResult which is base class for all the results that can be returned. Below are classes that derive from ActionResult and can be returned as a result.
.Net provides low level classes to natively work with HTTP. Two of such classes worth mentioning are:
To send a request to target URL we will create an instance of HttpWebRequest as follows: Continue reading
const are compile time constants where as readonly are runtime constants. Once assigned you cannot change the values assigned to variables declared as const or readonly.
Usage:
Const variable just like their static(shared in VB) counterparts are accessible via Class Names only. They are not accessible via objects.
Readonly variable are instance variable and accessible via objects. Continue reading
HttpRequest and HttpResponse Classes
Let’s try to scrape from data from my own blog i.e. www.shaktitanwar.com . We will try to extract all blog titles on home page.
There are various facets to scraping:
Automating applications is a serious business. Most business requires data coming from various sources. Usually there are 2 techniques that are used to fetch data from sources:
1.) Calling Provider API :
This is a White hat approach of getting data from data sources. Continue reading
Introduction
OOPS or Object Oriented Programming Structures. Some of the concepts have been always used in one or the other programming languages. For example you must have used structs in C which is a good example of encapsulation. There are four major pillar of OOPS. Let’s try to understand each one of them by taking some examples also:-
1.) Encapsulation
2.) Abstraction
3.) Polymorphism
4.) Inheritance
How to add modules in Visual Studio
Let’s try to add a new module express which is used to create MVC application using Node.To add a new module, we have 2 options:Using
1.) Node.js command line tool:
Navigate to project Root in command window.
Run below command:
Npm install express
Understanding Node.Js Project Structure in Visual Studio
Let’s create a new project in visual studio using Blank Node.js Console application template
Node.Js Support in Visual Studio
Visual Studio supports Node.js development. You can download node.js tools for visual studio (NTVS) from below location
Installation
Node.js can be installed from below link
https://nodejs.org/
Creating a Simple Server in Node.js Continue reading
Node.Js
On popular demand from many of my student and fellow developers, I am starting this series on Node.js . Focus will be on developing Node.js applications using Visual studio and side by side explaining things about other open source frameworks that go hand in hand with Node e.g. Bower, Grunt, Yeoman, Jasmine etc.
What is Node.js?
Node.js is a server side JavaScript framework. A server side framework means not only web framework like PHP,Asp.net but also something using which you can create your own servers like Apache or IIS. Using Node.js we can create networking applications on server as well. Unlike some other frameworks Node.js is completely Open source. Continue reading
