Crud operation with httphandler - http handler asp.net c# - with jquery - With good quality code

 https://www.codeproject.com/Articles/283976/CRUD-Create-Read-Update-Delete

How to collapse and expand functions of class in Visual studio

 Ctrl+M+M

Or in visual studio go to Edit and outlining and there are different shortcuts for more commands.

How to create webapi in website without MVC Namespace - My First Webapi

 >First you have to add three files in project 1)Global.asax 2) testApiController.cs by adding web api controller class in project(add new item) 3)WebApiConfig.cs file

> Add below code in these files

  Global.asax

void Application_Start(object sender, EventArgs e) 

    {

        // Code that runs on application startup

        YashWebsiteWebForm.WebApiConfig.Register(System.Web.Http.GlobalConfiguration.Configuration);

    }

WebApiConfig.cs

 public static class WebApiConfig

    {

      

        public static void Register(HttpConfiguration config)

        {

            

            config.Routes.MapHttpRoute(

                name: "DefaultApi",

                routeTemplate: "api/{controller}/{id}",    

                defaults: new { id = RouteParameter.Optional }

                );

        }

    }

Website vs webapp - codebehind vs codeFile

 In webapplication  we have CodeBehind

In website we have codefile

How to create unique key in SQL server management studio

 >First Open Visual Studio

>Right Click on table and click on Design

>Right Click on column name left side

>Click on Indexes/Key

>Select Unique key in 'Type' Filed

Note:- Sometime unique key option is not visible