MVC

Project Folder

A Beginner's Guide to ASP.NET Application Folders

ASP.NET MVC Folder Structure

Connected Services

Add Connected Service

App_Data folder

App_Start folder

Content folder

Controllers folder

Controllers folder contains controller class files. Controllers handles users' request and returns a response. MVC requires the name of all controller classes to end with "Controller".

Models folder

Models folder contains model class files. Typically model class includes public properties, which will be used by controllers to hold and manipulate application data.

Scripts folder

Views folder

Views folder contains html files for the application. Views folder includes separate folder for each controllers. For example, all the .cshtml files, which will be rendered by HomeController will be in Views/Home folder.

The Shared folder under View folder contains all the views which will be shared among different controllers e.g. layout files.

Files

Global.asax

Default Global.asax for MVC

protected void Application_Start()
{
    AreaRegistration.RegisterAllAreas();
    FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
    RouteConfig.RegisterRoutes(RouteTable.Routes);
    BundleConfig.RegisterBundles(BundleTable.Bundles);
}

Model

View

Controller

ModelState

ModelState is a property of a Controller representing a collection of name and value pairs that were submitted to the server during a POST. It also contains a collection of error messages for each value submitted.

ModelState has two purposes: to store the value submitted to the server, and to store the validation errors associated with those values.

What is the ModelState?

Caching

For .net Framework

[OutputCache(NoStore = true, Duration = 0)]

For .net Core:

[ResponseCache(NoStore = true, Duration = 0)]

ActionResult

View

RedirectToAction

JSON

Content

        public ActionResult GetFilesInFolder(string homedir)
        {
            return Content(jsonString, "application/json");
        }