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افزونه GitHub برای ویژوال استدیو

We're pleased to announce that version 2.0 of the GitHub Extension for Visual Studio is now available. You can install it directly from the Tools and Extensions gallery in Visual Studio, as well as from our releases page and our website. 

افزونه GitHub  برای ویژوال استدیو
اشتراک‌ها
نگارش نهایی ASP.NET Core 2.2 منتشر شد

The main theme for this ASP.NET Core release was to improve developer productivity and platform functionality with regard to building Web/HTTP APIs. As usual, we made some performance improvements as well.  

نگارش نهایی ASP.NET Core 2.2 منتشر شد
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تغییر مجوز کتابخانه‌ی Prism

Prism is now an officially paid product with a dual license. There is a free community license and a paid commercial license. If your company makes more than $1M USD, they should head to our website and buy a license NOW https://prismlibrary.com 

تغییر مجوز کتابخانه‌ی Prism
اشتراک‌ها
Windows Server 2019 معرفی شد

Microsoft today officially announced the next generation of their Windows Server product. Now known as Windows Server 2019, it includes various changes made to security, scalability and reliability of the platform. 

Windows Server 2019 معرفی شد
نظرات مطالب
پیاده سازی UnitOfWork به وسیله MEF
من کلاسهام به این شکله:
کلاس کانتکس‌های من
 public class VegaContext : DbContext, IUnitOfWork, IDbContext
    {
#region Constructors (2) 

        /// <summary>
        /// Initializes the <see cref="VegaContext" /> class.
        /// </summary>
        static VegaContext()
        {
            Database.SetInitializer<VegaContext>(null);
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="VegaContext" /> class.
        /// </summary>
        public VegaContext() : base("LocalSqlServer") { }

#endregion Constructors 

#region Properties (2) 

        /// <summary>
        /// Gets or sets the languages.
        /// </summary>
        /// <value>
        /// The languages.
        /// </value>
        public DbSet<Language> Languages { get; set; }

        /// <summary>
        /// Gets or sets the resources.
        /// </summary>
        /// <value>
        /// The resources.
        /// </value>
        public DbSet<Resource> Resources { get; set; }

#endregion Properties 

#region Methods (2) 

// Public Methods (1) 

        /// <summary>
        /// Setups the specified model builder.
        /// </summary>
        /// <param name="modelBuilder">The model builder.</param>
        public void Setup(DbModelBuilder modelBuilder)
        {
            //todo
            modelBuilder.Configurations.Add(new ResourceMap());
            modelBuilder.Configurations.Add(new LanguageMap());
            modelBuilder.Entity<Resource>().ToTable("Vega_Languages_Resources");
            modelBuilder.Entity<Language>().ToTable("Vega_Languages_Languages");
            //base.OnModelCreating(modelBuilder);
        }
// Protected Methods (1) 

        /// <summary>
        /// This method is called when the model for a derived context has been initialized, but
        /// before the model has been locked down and used to initialize the context.  The default
        /// implementation of this method does nothing, but it can be overridden in a derived class
        /// such that the model can be further configured before it is locked down.
        /// </summary>
        /// <param name="modelBuilder">The builder that defines the model for the context being created.</param>
        /// <remarks>
        /// Typically, this method is called only once when the first instance of a derived context
        /// is created.  The model for that context is then cached and is for all further instances of
        /// the context in the app domain.  This caching can be disabled by setting the ModelCaching
        /// property on the given ModelBuidler, but note that this can seriously degrade performance.
        /// More control over caching is provided through use of the DbModelBuilder and DbContextFactory
        /// classes directly.
        /// </remarks>
        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            modelBuilder.Configurations.Add(new ResourceMap());
            modelBuilder.Configurations.Add(new LanguageMap());
            modelBuilder.Entity<Resource>().ToTable("Vega_Languages_Resources");
            modelBuilder.Entity<Language>().ToTable("Vega_Languages_Languages");
            base.OnModelCreating(modelBuilder);
        }

#endregion Methods 

        #region IUnitOfWork Members
        /// <summary>
        /// Sets this instance.
        /// </summary>
        /// <typeparam name="TEntity">The type of the entity.</typeparam>
        /// <returns></returns>
        public new IDbSet<TEntity> Set<TEntity>() where TEntity : class
        {
            return base.Set<TEntity>();
        }
        #endregion
    }
در تعاریف کلاسهایی که از IDBContext ارث می‌برن اکسپورت شدن (این یک نمونه از کلاس‌های منه)
در طرف دیگر برای لود کردن کلاس زیر نوشتم
public class LoadContexts
    {
        public LoadContexts()
        {
            var directoryPath = HttpRuntime.BinDirectory;//AppDomain.CurrentDomain.BaseDirectory; //"Dll folder path";

            var directoryCatalog = new DirectoryCatalog(directoryPath, "*.dll");

            var aggregateCatalog = new AggregateCatalog();
            aggregateCatalog.Catalogs.Add(directoryCatalog);

            var container = new CompositionContainer(aggregateCatalog);
            container.ComposeParts(this);
        }

        //[Import]
        //public IPlugin Plugin { get; set; }

        [ImportMany]
        public IEnumerable<IDbContext> Contexts { get; set; }
    }
و در کانتکس اصلی برنامه این پلاگین هارو لود می‌کنم
public class MainContext : DbContext, IUnitOfWork
    {
        public MainContext() : base("LocalSqlServer") { }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            var contextList = new LoadContexts(); //ObjectFactory.GetAllInstances<IDbContext>();
            foreach (var context in contextList.Contexts)
                context.Setup(modelBuilder);

            Database.SetInitializer(new MigrateDatabaseToLatestVersion<MainContext, Configuration>());
            //Database.SetInitializer(new DropCreateDatabaseAlways<MainContext>());
        }

        /// <summary>
        /// Sets this instance.
        /// </summary>
        /// <typeparam name="TEntity">The type of the entity.</typeparam>
        /// <returns></returns>
        public IDbSet<TEntity> Set<TEntity>() where TEntity : class
        {
            return base.Set<TEntity>();
        }
    }
با موفقیت همه پلاگین‌ها لود میشه و مشکلی در عملیات نیست. اما Attribute‌های کلاس هارو نمیشناسه. مثلا پیام خطا تعریف شده در MVC نمایش داده نمیشه چون وجود نداره ولی وقتی کلاس مورد نظر از IValidatableObject  ارث میبره خطای‌های من نمایش داده میشه. می‌خوام از خود متادیتاهای استاندارد استفاده کنم.



اشتراک‌ها
SameSite Cookie و فایرفاکس

The new SameSite behavior has been the default in Firefox Nightly since Nightly 75 (February 2020). At Mozilla, we’ve been able to explore the implications of this change. Starting with Firefox 79 (June 2020), we rolled it out to 50% of the Firefox Beta user base. We want to monitor the scope of any potential breakage. 

SameSite Cookie و فایرفاکس
اشتراک‌ها
روش محافظت از سایت، در صورت آلوده شدن تعدادی از اسکریپت‌های آن که از یک سایت ثالث تامین شده‌‌اند

SRI Integrity Attribute allows the browser to determine if the file has been modified, which allows it to reject the file.

<script src="//www.site.com/plus/scripts/ba.js"
     integrity="sha256-Abhisa/nS9WMne/YX+dqiFINl+JiE15MCWvASJvVtIk="
     crossorigin="anonymous"></script>

روش محافظت از سایت، در صورت آلوده شدن تعدادی از اسکریپت‌های آن که از یک سایت ثالث تامین شده‌‌اند