I have been using Windows operating system from the beginning. When I first started using computer Windows XP was the latest operating system and it was amazing. After few years I started my career as a Java developer and in my office also I have been using Windows only.
 After few years Windows Vista got released and I suffered with it for few months and then Microsoft released Windows 7 which is the best Windows operating system IMO. And then they released Windows 8 which I don’t like much. Recently they released Windows 10 and I have upgraded from Windows 8.1 to Windows 10. Windows 10 is certainly better than Windows 8 but it still sucks compared to Windows 7. 

DuoCode is an alternative compiler, powered by Microsoft® Roslyn, and integrated in Visual Studio.

It magically cross-compiles your C# 6.0 code into high-quality readable JavaScript code, enabling rapid development of web applications utilizing the extensive features of the C# language, the Visual Studio IDE, and the .NET Framework base class libraries. 

Database Engineering Complete Course | DBMS Complete Course
In this program, you’ll learn:
Core techniques and methods to structure and manage databases.
Advanced techniques to write database driven applications and advanced data modeling concepts.
MySQL database management system (DBMS) and data creation, querying and manipulation.
How to code and use Python Syntax
How to prepare for technical interviews for database engineer roles.
 

Vertical Slice Architecture, not Layers! 

Why Vertical Slice Architecture? Nobody wants to deal with a system that is hard to change and easy to introduce bugs because it's a spaghetti code mess of various technical concerns. Clean Architecture is popular because it separates concerns into many different layers. But why are we organizing code by layers? Does adding a new feature require you to modify files across multiple projects in your UI, business, and data access layers? Vertical Slice Architecture is about how you organize code and focus on features instead of technical layers will make your system easier to change. 

    public class EfRolesService : IRolesService
    {
        readonly IUnitOfWork _uow;
        readonly IDbSet<Role> _roles;
        public EfRolesService(IUnitOfWork uow)
        {
            _uow = uow;
            _roles = _uow.Set<Role>();
        }

        public IList<Role> FindUserRoles(int userId)
        {
            var query = from role in _roles
                        from user in role.Users
                        where user.Id == userId
                        select role;

            return query.OrderBy(x => x.Name).ToList();
        }

        public string[] GetRolesForUser(int userId)
        {
            var roles = FindUserRoles(userId);
            if (roles == null || !roles.Any())
            {
                return new string[] { };
            }

            return roles.Select(x => x.Name).ToArray();
        }

        public bool IsUserInRole(int userId, string roleName)
        {
            var query = from role in _roles
                        where role.Name == roleName
                        from user in role.Users
                        where user.Id == userId
                        select role;
            var userRole = query.FirstOrDefault();
            return userRole != null;
        }
    }

    public class CustomRoleProvider : RoleProvider
    {
        public override bool IsUserInRole(string username, string roleName)
        {
            // Since the role provider, in this case the CustomRoleProvider is instantiated by 
            // the ASP.NET framework the best solution is to use the service locator pattern. 
            // The service locator pattern is normally considered to be an anti-pattern but 
            // sometimes you have to be pragmatic and accept the limitation on the framework 
            // that is being used (in this case the ASP.NET framework).

            var rolesService = ObjectFactory.GetInstance<IRolesService>();
            return rolesService.IsUserInRole(username.ToInt(), roleName);
        }

        public override string[] GetRolesForUser(string username)
        {
            var rolesService = ObjectFactory.GetInstance<IRolesService>();
            return rolesService.GetRolesForUser(username.ToInt());
        }
// مابقی نیازی نیست پیاده سازی شوند

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01 - The Basics
02 - TreeViews and Value Converters
03 - View Model MVVM Basics
04 - Custom Window Chrome and Styles
05 - Creating Login Form Sign Up Screen
06 - Attached Properties
07 - Storyboard Animations
08 - Advanced View Models Real World
09 - User Controls Side Menu Content
10 - ItemsControl Chat List & Design Time Data
11 - Dependency Injection & Multiple Projects
12 - MVVM View Model Binding to Animations
13 - Complete Page Animation
14 - Create Chat Message Bubbles
15 - Adaptive Control Design with View Model Binding
16 - Chat Message Title Bar Menu
17 - Chat Message Input Box Control
18 - Styling Scrollbars Custom
19 - Creating Popup Menus
20 - Creating Vertical Popup Menu
21 - Custom Dialog System Message Box Popup
22 - Slide Up Settings Menu
23 - Settings Page UI
24 - Advanced Edit Text Control
25 - Advanced Cross-Control Syncing