First it is important to recognize that the .NET Framework is not the same as .NET Core. The .NET Framework is effectively now in maintenance mode , and all innovation is occurring in the open source .NET Core now and into the future. So step one to remaining relevant is to understand .NET Core (and the closely related .NET Standard).
The Basics of Web Application Security
Create a Simple .NET Application on Linux
Virtual Panel: High Performance Application in .NET
<Project>
<PropertyGroup>
<BlazorMode>Client</BlazorMode>
<DefineConstants Condition=" '$(BlazorMode)' == 'Client' ">$(DefineConstants);BlazorClient</DefineConstants>
<DefineConstants Condition=" '$(BlazorMode)' == 'Server' ">$(DefineConstants);BlazorServer</DefineConstants>
<LangVersion>8.0</LangVersion>
</PropertyGroup>
</Project> #if BlazorClient ... #elif BlazorServer ... #endif
app.Use(async (context, next) =>
{
context.Items["isVerified"] = true;
await next.Invoke();
}); app.Run(async (context) =>
{
await context.Response.WriteAsync("Verified request? " + context.Items["isVerified"]);
}); {
"dependencies": {
//same as before
"Microsoft.AspNetCore.Session": "1.0.0"
}
} public void ConfigureServices(IServiceCollection services)
{
services.AddSession(); public void Configure(IApplicationBuilder app)
{
app.UseSession(); app.UseSession(options: new SessionOptions
{
IdleTimeout = TimeSpan.FromMinutes(30),
CookieName = ".MyApplication"
}); public ActionResult TestSession()
{
this.HttpContext.Session.Set("key-1", BitConverter.GetBytes(DateTime.Now.Ticks));
this.HttpContext.Session.SetInt32("key-2", 1);
this.HttpContext.Session.SetString("key-3", "DNT");
return Content("OK!");
} public IActionResult Index()
{
byte[] key1 = this.HttpContext.Session.Get("key-1");
long key1Value = BitConverter.ToInt64(key1, 0);
int? key2Value = this.HttpContext.Session.GetInt32("key-2");
string key3Value = this.HttpContext.Session.GetString("key-3");
return Content("OK!");
} using System;
using Microsoft.AspNetCore.Http;
using Newtonsoft.Json;
namespace Core1RtmEmptyTest.StartupCustomizations
{
public static class SessionExts
{
public static void SetDateTime(this ISession collection, string key, DateTime value)
{
collection.Set(key, BitConverter.GetBytes(value.Ticks));
}
public static DateTime? GetDateTime(this ISession collection, string key)
{
var data = collection.Get(key);
if (data == null)
{
return null;
}
var dateInt = BitConverter.ToInt64(data, 0);
return new DateTime(dateInt);
}
public static void SetObject(this ISession session, string key, object value)
{
var stringValue = JsonConvert.SerializeObject(value);
session.SetString(key, stringValue);
}
public static T GetObject<T>(this ISession session, string key)
{
var stringValue = session.GetString(key);
return JsonConvert.DeserializeObject<T>(stringValue);
}
}
} {
"dependencies": {
//same as before
"Microsoft.Extensions.Configuration.Json": "1.0.0"
}
} 
class ConcreteCreator : Creator
{
public override IProduct FactoryMethod(string type)
{
switch (type)
{
case "A": return new ConcreteProductA();
case "B": return new ConcreteProductB();
default: throw new ArgumentException("Invalid type", "type");
}
}
} public interface IVehicleFactory {
IDiesel GetDiesel();
IMotorCar GetMotorCar();
} public class IranKhodro : IVehicleFactory
{
public IDiesel GetDiesel() { return new Arena(); }
public IMotorCar GetMotorCar() { return new Peugeot206(); }
}
public class Saipa : IVehicleFactory
{
public IDiesel GetDiesel() { return new Foton(); }
public IMotorCar GetMotorCar() { return new Peride(); }
} public interface IDiesel { string GetName();}
public interface IMotorCar { string GetName();} public class Foton : IDiesel { public string GetName() { return "This is Foton"; } }
public class Arena : IDiesel { public string GetName() { return "This is Arena"; } }
public class Peugeot206 : IMotorCar { public string GetName() { return "This is Peugeot206"; } }
public class Peride : IMotorCar { public string GetName() { return "This is Peride"; } } IVehicleFactory factory = new IranKhodro();
Console.WriteLine("***" + factory.GetType().Name + "***");
IDiesel diesel = factory.GetDiesel();
Console.WriteLine(diesel.GetName());
IMotorCar motorCar = factory.GetMotorCar();
Console.WriteLine(motorCar.GetName());
factory = new Saipa();
Console.WriteLine("***" + factory.GetType().Name + "***");
diesel = factory.GetDiesel();
Console.WriteLine(diesel.GetName());
motorCar = factory.GetMotorCar();
Console.WriteLine(motorCar.GetName()); 
و کلام آخر در مورد این الگو:
