Blazor C# Tutorials
30 videos

In this playlist, I am going through all the fundamentals and sharing my journey to be a full stack Blazor developer. This is the future of web development in ASP.NET world. If you want to learn Blazor this is the best place to start.

1. Build Your First App - EP01
2. Getting Started - EP02
3. #Routing - EP03
4. Dependency #Injection - EP04
5. Forms & #Validations - EP05
6. JavaScript #Interop - EP06
7. #Razor #Components | Re-usability - EP07
8. Razor Components | #Lifecycle Methods - EP08
9. Razor Component #Libraries - EP09
10. Call #REST #API - #CRUD Methods - EP10
11. #Authentication | Out of the box- EP11
12. Custom AuthenticationStateProvider - EP12
13. Layouts | Login Pages - EP13
14.  HttpClient | Login User
15. IHttpClientFactory | Login User
16. Sending JWT token & Request Middleware
17. Handling Exceptions 

public interface IUnitOfWork
    {
        IDbSet<TEntity> Set<TEntity>() where TEntity : class;
        int SaveChanges();
        void Update<TEntity>(TEntity entity) where TEntity : class;
    }


 public class MyContext : DbContext, IUnitOfWork
    {
        public void Update<TEntity>(TEntity entity) where TEntity : class
        {
            var fqen = GetEntityName<TEntity>();

            object originalItem;
            EntityKey key = (IObjectContextAdapter)this).ObjectContext.CreateEntityKey
                          (fqen, entity);
            if (((IObjectContextAdapter)this).ObjectContext.TryGetObjectByKey(key, out 
                                            originalItem))
            {
               ((IObjectContextAdapter)this).ObjectContext.ApplyCurrentValues
                  (key.EntitySetName, entity);
            }
               ((IObjectContextAdapter)this).ObjectContext.ApplyCurrentValues
                        (key.EntitySetName, entity);
        }

        private string GetEntityName<TEntity>() where TEntity : class
        {
            return string.Format("{0}.{1}", ((IObjectContextAdapter)this).ObjectContext.
            DefaultContainerName, _pluralizer.Pluralize(typeof(TEntity).Name));
        }

        #region IUnitOfWork Members
        public new IDbSet<TEntity> Set<TEntity>() where TEntity : class
        {
            return base.Set<TEntity>();
        }
        #endregion
    }

Announcing the new version of Microsoft To Do—we’ve come a long way!  

We’ve crammed months of work into v4.2.1 with over 400 commits since our last v4.1.3 release.  

Today we’ve published up to nuget FreshMvvm 2.0 with some very anticipated new features. 

TypeChat.NET is an experimental project from the Microsoft Semantic Kernel team. TypeChat.NET brings the ideas of TypeChat to .NET. 

{
    "userIsAuthorizedForCourseTranscripts": false,
    "modules": [
        {
            "title": "Course Overview",
            "clips": [
                {
                    "title": "Course Overview",
                    "playerParameters": "author=scott-allen&name=aspdotnet-core-1-0-fundamentals-m0&mode=live&clip=0&course=aspdotnet-core-1-0-fundamentals",
                    "transcripts": [ ]
                }
            ]
        },
        {
            "title": "Building Your First ASP.NET Core Application",
            "clips": [
                {
                    "title": "Introduction",
                    "playerParameters": "author=scott-allen&name=aspdotnet-core-1-0-fundamentals-m1&mode=live&clip=0&course=aspdotnet-core-1-0-fundamentals",
                    "transcripts": [
                        {
                            "displayTime": 0.0,
                            "text": "Hi! This is Scott, and this course will help you build your first application with ASP.NET Core."
                        },
                        {
                            "displayTime": 7.0,
                            "text": "In this course, we'll be using Visual Studio and the new ASP.NET Framework to build a web application that"
                        }
                    ]
                }
            ]
        }
    ]
}

public class PluralsightCourse
{
    public bool UserIsAuthorizedForCourseTranscripts { get; set; }
    public PluralsightCourseItems[] Modules { get; set; }
}
public class PluralsightCourseItems
{
    public string Title { get; set; }
    public PluralsightCourseClip[] Clips { get; set; }
}
public class PluralsightCourseClip
{
    public string Title { get; set; }
    public string PlayerParameters { get; set; }
    public PluralsightCourseClipTranscript[] Transcripts { get; set; }
}
public class PluralsightCourseClipTranscript
{
    public float DisplayTime { get; set; }
    public string Text { get; set; }
}

public static PluralsightCourse ProcessJsonFile(string jsonData)
{
    return JsonConvert.DeserializeObject<PluralsightCourse>(jsonData);
}

• Use BindAttribute on the action method 
• Use [Editable] or [BindNever] on the model 
  
• Use two different models 
• Use a base class 
  
• Use ModelMetadataTypeAttribute 
  
• Explicit binding via TryUpdateModelAsync<> 
  

This was a very quick run down of some of the options available to you to prevent mass assignment. Which approach you take is up to you, though I would definitely suggest using one of the latter 2-model approaches. There are other options too, such as doing explicit binding via TryUpdateModelAsync<> but the options I've shown represent some of the most common approaches. Whatever you do, don't just blindly bind your view models if you have properties that should not be edited by a user, or you could be in for a nasty surprise.

And whatever you do, don't bind directly to your EntityFramework models. Pretty please. 

My last post investigated ways to build a .NET Core desktop/console app with a web-rendered UI without bringing in the full weight of Electron. This seems to have interested a lot of people, so I decided to upgrade it to newer technologies and add cross-platform support.

The result is a little NuGet package called WebWindow that you can add to any .NET Core console app. It can open a native OS window (Windows/Mac/Linux) containing web-based UI, without your app having to bundle either Node or Chromium.