ASP.Net 4 Web Forms¶

.NET Framework¶

C# is the .NET framework language
A software library with a runtime environment (for execution)
- Does memory management like java
- Use common language runtime (CLR) to execute code

Tools:¶

IDE: Visual Studio

Csharp¶

HelloWorld - Console App¶

//main.cs
using System;

class MainClass {
  public static void Main (string[] args) {
    Console.WriteLine ("Hello World");
    Console.WriteLine ("Hello World");
     Console.ReadKey();
  }
}

Solution¶

A group of several projects (eg. Windows Forms app + Website)

Namespaces¶

Grouping of spaces that have something similar to each other
- Java equivalent: package names?

Access Modifiers¶

private, public, protected, internal, protected internal
accessModifier returnType methodName (returnType param1, returnType param2){}

Static¶

static methods can only access other static methods from within the same class
accessModifier [optional static] returnType methodName (returnType param1, returnType param2){}

Lists¶

Declaring generic lists in C# accessModifier Lists<ClassName> listitems

For and for eachloop¶

for (int x=0; x<=blah; x++) {}
foreach (int blah in blahs) {}

Class¶

Keep the filename same as the class name
- Unlike java, it's okay to have multiple classes in the same file but just don't do it for maintainability reasons.

Inheritance¶

accessModifier class classInheriting:classBeingInherited

Getters and setters{?}:¶

https://stackoverflow.com/questions/17881091/getter-and-setter-declaration-in-net

public int VariableName {
    get {return _variableName}
    set {_variableName = value}
}

Exception handling¶

try{}
catch{}
finally {}

Database¶

Database Engine - the system running the database (Eg. Microsoft SQL server)

Shortcuts for VS¶

Debug Continue - F5
Debug Step into - F11
Debug Step over - F10
Definition of object - F12
Back to the file - Ctrl+Left+-

Last update: August 10, 2020