The most important concepts, design pattern, in MVC ASP.NET

It is better to read something about those concepts, otherwise, it will confuse you for a while.

1. MVC design patthern
2. Controller, Action, ViewData, html helpers
3. JQuery
4 StructureMap, Dependency Injection and Inversion of Control

How to converts a virtual path to an application absolute path

URL.content(virtual path)

Url.Content("~/Images/sendmail.jpg")

MVC asp.net architecture diagram

Codes example for why use Lambda

Consider this example:

 string person = people.Find(person => person.Contains("Joe"));

versus

 public string FindPerson(string nameContains, List<string> persons)
 {
     foreach (string person in persons)
         if (person.Contains(nameContains))
             return person;
     return null;
 }