C# - Guide

The first Program

using System;
namespace HelloWorld
{
    class Hello 
    {
        static void Main() 
        {
            Console.WriteLine("Hello World!");

            // Keep the console window open in debug mode.
            Console.WriteLine("Press any key to exit.");
            Console.ReadKey();
        }
    }
}

Main method : Each program in C# has a main method where execution starts from. Main

method is Static method, which do not need any object to access it.

C# Coding Guidelines C# language specification does not provide any set of rules that

is needed to abide while coding. But certain guidelines if followed adds values and

makes code consistent.

Use the default Code Editor settings (smart indenting, four-character indents, tabs saved as spaces)

Write only one statement per line.


Write only one declaration per line.


If continuation lines are not indented automatically, indent them one tab stop (four spaces).


Add at least one blank line between method definitions and property definitions.


Use parentheses to make clauses in an expression apparent, as shown in the following code.



Commenting Convention



Place the comment on a separate line, not at the end of a line of code.


Begin comment text with an uppercase letter.


End comment text with a period.


Insert one space between the comment delimiter (//) and the comment text



Language Guideline


String Data Type


To concatenate short string use + operator - Ex. string x=First+Last;
To append string in loop, use StringBuilder


Implicitly Typed Local Variables



Use implicit type when value is obvious from right side of assignment.



Ex- var x = 2+3;


DO not use var, and use explicit data type when type of right side is not obvious.



        Ex. int var4 = ExampleClass.ResultSoFar();
Avoid use of var in place of dynamic .