Top 12 C# Programming Tips & Tricks

Programming can be described as the process which leads a computing problem from its original formulation, to an executable computer program. This process involves activities such as developing understanding, analysis, generating algorithms, verification of essentials of algorithms - including their accuracy and resources utilization - and coding of algorithms in the proposed programming language. The source code can be written in one or more programming languages. The purpose of programming is to find a series of instructions that can automate solving of specific problems, or performing a particular task. Programming needs competence in various subjects including formal logic, understanding the application, and specialized algorithms.

1. Write Unit Test for Non-Public Methods
Many developers do not write unit test methods for non-public assemblies. This is because they are invisible to the test project. C# enables one to enhance visibility between the assembly internals and other assemblies. The trick is to include //Make the internals visible to the test assembly [assembly: InternalsVisibleTo("MyTestAssembly")] in the AssemblyInfo.cs file.

2. Tuples
Many developers build a POCO class in order to return multiple values from a method. Tuples are initiated in .NET Framework 4.0.

3. Do not bother with Temporary Collections, Use Yield instead
A temporary list that holds salvaged and returned items may be created when developers want to pick items from a collection.

In order to prevent the temporary collection from being used, developers can use yield. Yield gives out results according to the result set enumeration.

Developers also have the option of using LINQ.

4. Making a retirement announcement
Developers who own re-distributable components and probably want to detract a method in the near future, can embellish it with the outdated feature to connect it with the clients

       [Obsolete("This method will be deprecated soon. You could use XYZ alternatively.")]

Upon compilation, a client gets a warning upon with the message. To fail a client build that is using the detracted method, pass the additional Boolean parameter as True.

       [Obsolete("This method is deprecated. You could use XYZ alternatively.", true)]

5. Deferred Execution While Writing LINQ Queries
When a LINQ query is written in .NET, it can only perform the query when the LINQ result is approached. The occurrence of LINQ is known as deferred execution. Developers should understand that in every result set approach, the query gets executed over and over. In order to prevent a repetition of the execution, change the LINQ result to List after execution. Below is an example

       public void MyComponentLegacyMethod(List<int> masterCollection)

6. Explicit keyword conversions for business entities
Utilize the explicit keyword to describe the alteration of one business entity to another. The alteration method is conjured once the alteration is applied in code

7. Absorbing the Exact Stack Trace
In the catch block of a C# program, if an exception is thrown as shown below and probably a fault has occurred in the method ConnectDatabase, the thrown exception stack trace only indicates the fault has happened in the method RunDataOperation

8. Enum Flags Attribute
Using flags attribute to decorate the enum in C# enables it as bit fields. This enables developers to collect the enum values. One can use the following C# code.

he output for this code will be “BlackMamba, CottonMouth, Wiper”. When the flags attribute is removed, the output will remain 14.

9. Implementing the Base Type for a Generic Type
When developers want to enforce the generic type provided in a generic class such that it will be able to inherit from a particular interface

10. Using Property as IEnumerable doesn’t make it Read-only
When an IEnumerable property gets exposed in a created class

This code modifies the list and gives it a new name. In order to avoid this, add AsReadOnly as opposed to AsEnumerable.

11. Data Type Conversion
More often than not, developers have to alter data types for different reasons. For example, converting a set value decimal variable to an int or Integer

Source: https://freelancer.com/community/...

Coolest thing i've built solo? I think it's my 3D snake multiplayer game.

It all started with a simple 2D snake game to teach programming basics at community college. Then i added a multiplayer mode based on a simple UDP implementation. Then i wondered how it would look ike in 3D and i had the idea to figure out how to implement a 3D engine by myself and i dove into the maths and wrote a simple 3D engine based on a windows forms picture box.
I showed the game to my colleagues and the loved it and we played it a lot.
So i added special mode boosters, and sound and map events and obervermode and observer polls.... you know it.

Here's a little collage of the journey...

Interviewer: Welcome, Mr X. Thanks for dropping by. We like to keep our interviews informal. And even though I have all the power here, and you are nothing but a cretin, let’s pretend we are going to have fun here.

Mr X: Sure, man, whatever.

I: Let’s start with the technical stuff, shall we? Do you know what a linked list is?

X: (Tells what it is).

I: Great. Can you tell me where linked lists are used?

X:: Sure. In interview questions.

I: What?

X: The only time linked lists come up is in interview questions.

I:: That’s not true. They have lots of real world applications. Like, like…. (fumbles)

X:: Like to implement memory allocation in operating systems. But you don’t sell operating systems, do you?

I:: Well… moving on. Do you know what the Big O notation is?

X: Sure. It’s another thing used only in interviews.

I: What?! Not true at all. What if you want to sort a billion records a minute, like Google has to?

X: But you are not Google, are you? You are hiring me to work with 5 year old PHP code, and most of the tasks will be hacking HTML/CSS. Why don’t you ask me something I will actually be doing?
I: (Getting a bit frustrated)  Fine. How would you do FooBar in version X of PHP?

X: I would, er, Google that.

I: And how do you call library ABC in PHP?

X: Google?

I: (shocked) OMG. You mean you don’t remember all the 97 million PHP functions, and have to actually Google stuff? What if the Internet goes down?

X: Does it? We’re in the 1st world, aren’t we?

I: Tut, tut. Kids these days. Anyway,looking at your resume, we need at least 7 years of ReactJS. You don’t have that.

X: That’s great, because React came out last year.

I: Excuses, excuses. Let’s ask some lateral thinking questions. How would you go about finding how many piano tuners there are in San Francisco?

X: 37.

I: What?!

X: 37. I googled before coming here. Also Googled other puzzle questions. You can fit 7,895,345 balls in a Boeing 747. Manholes covers are round because that is the shape that won’t fall in. You ask the guard what the other guard would say. You then take the fox across the bridge first, and eat the chicken. As for how to move Mount Fuji, you tell it a sad story.

I: Ooooooooookkkkkaaaayyyyyyy. Right, tell me a bit about yourself.

X: Everything is there in the resume.

I: I mean other than that. What sort of a person are you? What are your hobbies?

X: Japanese culture.

I: Interesting. What specifically?

X: Hentai.

I: What’s hentai?

X: It’s an televised art form.

I: Ok. Now, can you give me an example of a time when you were really challenged?

X: Well, just the other day, a few pennies from my pocket fell behind the sofa. Took me an hour to take them out. Boy was it challenging.

I: I meant technical challenge.

X: I once spent 10 hours installing Windows 10 on a Mac.

I: Why did you do that?

X: I had nothing better to do.

I: Why did you decide to apply to us?

X: The voices in my head told me.

I: What?

X: You advertised a job, so I applied.
I: And why do you want to change your job?

X: Money, baby!

I: (shocked)

X: I mean, I am looking for more lateral changes in a fast moving cloud connected social media agile web 2.0 company.

I: Great. That’s the answer we were looking for.  What do you feel about constant overtime?

X: I don’t know. What do you feel about overtime pay?

I: What is your biggest weakness?

X: Kryptonite. Also, ice cream.

I: What are your salary expectations?

X: A million dollars a year, three months paid vacation on the beach, stock options, the lot. Failing that, whatever you have.

I: Great. Any questions for me?

X: No.

I: No? You are supposed to ask me a question, to impress me with your knowledge. I’ll ask you one. Where do you see yourself in 5 years?

X: Doing your job, minus the stupid questions.

I: Get out. Don’t call us, we’ll call you.

All Credit to:
http://pythonforengineers.com/the-p...

Last year I built the platform 'Tindex'. It was an index of Tinder profiles so people could search by name, gender and age.

We scraped the Tinder profiles through a Tinder API which was discontinued not long ago, but weird enough it was still intact and one of my friends who was also working on it found out how to get api keys (somewhere in network tab at Tinder Online).

Except name, gender and age we also got 3 distances so we could calculate each users' location, then save the location each 15 minutes and put the coordinates on a map so users of Tindex could easily see the current location of a specific Tinder user.

Fun note: we also got the Spotify data of each Tinder user, so we could actually know on which time and which location a user listened to a specific Spotify track.

Later on we started building it out: A chatbot which connected to Tinder so Tindex users could automatically send a pick up line to their new matches (Was kinda buggy, sometimes it sent 3 pick up lines at ones).

Right when we started building a revenue model we stopped the entire project because a friend of ours had found out that we basically violated almost all terms.

Was a great project, learned a lot from it and actually had me thinking twice or more about online dating platforms.

Below an image of the user overview design I prototyped. The data is mock-data.