Assembly Neutral Interface in ASP.NET 5(vNext)

CodeProject
Recently Microsoft has open sourced it’s entire ASP.NET next version stack on GitHub and I have been closely watching this for a quite a some time to understand how they have created architecture of it and how they organize everything in such a large stack.

I have seen  [AssemblyNeutral] attribute in few of interfaces and I was curious why it was required. So I dig into it and learned about it.

Why we need Assembly Neutral Interfaces?

In earlier version of ASP.NET and Microsoft.NET Interfaces are bind to a assembly where it is declared. Let’s say I have written a interface under DotNetJalps namespace for my framework.

namespace DotNetJalps
{
    public interface ILogger
    {
        DoAmazingStuff();
    }
}

Now after some time this framework is super popular and everybody loves abstraction I have created and now they wants same abstraction so there are two ways we can do this.

1. Convenience me to write this abstraction.
2. Write implementation themself and maintain that.

Continue Reading

C# 6.0–New feature series

This post will be aggregator post for all C# 6.0 feature series. Here you can find all of my blog posts about what’s new in C# 6.0.

Till now, I have written following blog posts.

C# 6.0–nameof Operator
C# 6.0–Auto implemented property initializer
C# 6.0–Static class using statement
C# 6.0–String Interpolation
C# 6.0- Null Conditional Operator
C# 6.0–Exception Filters
C# 6.0–String Interpolation
C# 6.0–Expression Bodied Members
C# 6.0–Dictionary Initializers
Recent updates to C# 6.0 syntax with new version of Visual Studio 2015 CTP

Hope you like it. Stay tuned for lot more about new Microsoft.NET technologies!!

Continue Reading

C# 6.0–String Interpolation

This blog post is part of C# 6.0 Features Series.

As we all know, C# 6.0 provides lots of small enhancements to the language and string interpolation is one of them. In this blog post we are going to learn how this small new feature can help us for string concatenation.

So let’s take small example, Where I have created a new example of string concatenation. Following is a code for that.

using System;
namespace StringInterpolation
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = "Jalpesh Vadgama";

            //Old way of string concentaionation 
            Console.WriteLine("My name is" + name);
            Console.WriteLine("My name is {0}", name);

            //New way of doing this
            Console.WriteLine("My name is {name}");
        }
    }
}

Continue Reading

Happy New year 2015

New year passed so fast and that I have not feel as its a big time. On this occasion I would like to thank you all my readers for reading my blog and encourage me via putting lots of comments. I promise I will keep writing this blog whenever I get a chance.

Wishing every one a happy new year!!

Continue Reading

C# 6.0–Exception Filters

This blog post is part of C# 6.0 Features Series.

C# 6.0 contains lots of small features and one of them is Exception filters. It is already there with VB.NET earlier but now it is available in C# also. In exception filters now if exception is combined with Exception statement and If condition of if satisfy then it will execute that block.

Let’s take a simple example to understand it better. Following is a code for a simple console application. Before exception filters we were able to write a code like following.

using System;

namespace ExceptionFilters
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                throw new Exception("Jalpesh");
            }

            catch (Exception ex)
            {
                if(ex.Message =="Jalpesh")
                    Console.WriteLine("Exception with Message Jalpesh is executed");
                else
                    Console.WriteLine("Exception with Message DotNetJalps executed");
            }
        }
    }
}

In above example, I have thrown a exception in try block and in catch block I have written if-else block to check message and based on that it will print some method.

Continue Reading

C# 6.0–Null conditional operator

This blog post is part of C# 6.0 Features Series.

As we know there are lots of small features added in C# 6.0 and Null conditional operator is one of them. You can check null with specific conditions with Null conditional operator and this will definitely increase productivity of developers and there will be less lines of code.

Let’s create example. Following are two classes I have created for this example. Address class will contains two properties like Street and City.

namespace NullConditionalOperator
{
    public class Address
    {
        public string Street { get; set; }
        public string City { get; set; }
    }
}

And Same way Person class contains four properties Id,FirstName,Lastname and Address which is of type Address class which we have created.

Continue Reading

C# 6.0–Static class using statement

This blog post is part of C# 6.0 Features Series.

C# 6.0 version introduced lot of small features and one of that features is  using feature. Now with C# 6.0 you can use using statement which was not possible in earlier versions of  C#. Following is a example of using statement in C#.

using static System.Console;

namespace StaticClassUsing
{
    class Program
    {
        static void Main(string[] args)
        {
            WriteLine("With using statement");
        }
    }
}

And below is output when you run your application.

Continue Reading