A brief history of web design for designers 

بهترین فروشگاه رایگان! nopCommerce بصورت منبع باز است. یک پروژه با ویژگی‌های جامع است که به سادگی برای هرنوع کسب و کار جدید کارایی دارد ، در عین حال به اندازه کافی قدرتمند است. این یک پلت فرم تجارت الکترونیک امن، مقیاس پذیر و قابل تمدید است.   بسیاری از تکنیک‌های معماری بصورت کامل در این پروژه دیده میشود.  توضیحات:

C# MVC 4.5 (4) - Code First - DDD - Multilayered software architecture 

Here are some of the reasons why nullable reference types are less than ideal:

• Invoking a member on a null value will issue a System.NullReferenceException exception, and every invocation that results in a System.NullReferenceException in production code is a bug. Unfortunately, however, with nullable reference types we “fall in” to doing the wrong thing rather than the right thing. The “fall in” action is to invoke a reference type without checking for null.
• There’s an inconsistency between reference types and value types (following the introduction of Nullable<T>) in that value types are nullable when decorated with  “?” (for example, int? number); otherwise, they default to non-nullable. In contrast, reference types are nullable by default. This is “normal” to those of us who have been programming in C# for a long time, but if we could do it all over, we’d want the default for reference types to be non-nullable and the addition of a “?” to be an explicit way to allow nulls.
• It’s not possible to run static flow analysis to check all paths regarding whether a value will be null before dereferencing it, or not. Consider, for example, if there were unmanaged code invocations, multi-threading, or null assignment/­replacement based on runtime conditions. (Not to mention whether analysis would include checking of all library APIs that are invoked.)
• There’s no reasonable syntax to indicate that a reference type value of null is invalid for a particular declaration.
• There’s no way to decorate parameters to not allow null. 

How a bug in Visual Studio 2015 exposed my source code on GitHub and cost me $6,500 in a few hours

The .NET Portability Analyzer is a free Visual Studio Add-in (or console app) that will give you a detailed report on how portable your code is. 

Biggest Changes With C# 9.0 and .NET 5

React v17.0 Release Candidate: No New Features 

Version 5.11 Includes 325 New Icons! 

What's new in Angular CLI 8.3? 

من Visual Studio Tools for Apache Cordova CTP3.1 رو کامل نصب کردم 

اون پیغام Getting started with Visual Studio رو هم نشون داد ولی موقع اجرا با Ripple یا build پروژه با پیغام زیر مواجه میشم و برنامه اجرا نمیشه و  هیچ اروری هم تو Error List نیست 

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