Visual Studio 2019 version 16.11 will be the last version of Visual Studio 2019 

See how Visual Studio , Visual Studio Team Services, and Git can work together 

.NET 5 Preview 7 is now available and is ready for evaluation. Here’s what’s new in this release:

• Blazor WebAssembly apps now target .NET 5
• Updated debugging requirements for Blazor WebAssembly
• Blazor accessibility improvements
• Blazor performance improvements
• Certificate authentication performance improvements
• Sending HTTP/2 PING frames
• Support for additional endpoints types in the Kestrel sockets transport
• Custom header decoding in Kestrel
• Other minor improvements 

Cayley is an open-source graph inspired by the graph database behind Freebase and Google's Knowledge Graph.

Features 

• Community driven
• Written in Go
  • can be used as a Go library
• Easy to get running (3 or 4 commands)
• RESTful API
  • or a REPL if you prefer
• Built-in query editor and visualizer
• Multiple query languages:
  • Gizmo - a JavaScript, with a Gremlin-inspired* graph object.
  • GraphQL-inspired* query language.
  • (simplified) MQL, for Freebase fans
• Plays well with multiple backend stores:
  • KVs: Bolt, LevelDB
  • NoSQL: MongoDB, ElasticSearch, CouchDB/PouchDB
  • SQL: PostgreSQL, CockroachDB, MySQL
  • In-memory, ephemeral
• Modular design; easy to extend with new languages and backends
• Good test coverage
• Speed, where possible. 

    public class Student
    {
        public string FirstName;
        public string LastName;
        public int TotalPointsEarned;

        public void TakeExam(int pointsForExam)
        {
            TotalPointsEarned += pointsForExam;
        }

        public void ExtraCredit(int extraPoints)
        {
            TotalPointsEarned += extraPoints;
        }


        public int PointsEarned { get { return TotalPointsEarned; } }
    }

using System.Collections.Immutable;
using System.Linq;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Diagnostics;
 
namespace CodingStandards
{
    [DiagnosticAnalyzer(LanguageNames.CSharp)]
    public class CodingStandardsAnalyzer : DiagnosticAnalyzer
    {
        public const string DiagnosticId = "CodingStandards";

        // You can change these strings in the Resources.resx file. If you do not want your analyzer to be localize-able, you can use regular strings for Title and MessageFormat.
        internal static readonly LocalizableString Title = new LocalizableResourceString(nameof(Resources.AnalyzerTitle), Resources.ResourceManager, typeof(Resources));
        internal static readonly LocalizableString MessageFormat = new LocalizableResourceString(nameof(Resources.AnalyzerMessageFormat), Resources.ResourceManager, typeof(Resources));
        internal static readonly LocalizableString Description = new LocalizableResourceString(nameof(Resources.AnalyzerDescription), Resources.ResourceManager, typeof(Resources));
        internal const string Category = "Naming";

        internal static DiagnosticDescriptor Rule = 
            new DiagnosticDescriptor(
                DiagnosticId, 
                Title, 
                MessageFormat, 
                Category, 
                DiagnosticSeverity.Error, 
                isEnabledByDefault: true, 
                description: Description);
 
        public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
        {
            get { return ImmutableArray.Create(Rule); }
        }

        public override void Initialize(AnalysisContext context)
        {
            // TODO: Consider registering other actions that act on syntax instead of or in addition to symbols
            context.RegisterSyntaxNodeAction(analyzeFieldDeclaration, SyntaxKind.FieldDeclaration);
        }

        static void analyzeFieldDeclaration(SyntaxNodeAnalysisContext context)
        {
            var fieldDeclaration = context.Node as FieldDeclarationSyntax;
            if (fieldDeclaration == null) return;
            var accessToken = fieldDeclaration
                                .ChildTokens()
                                .SingleOrDefault(token => token.Kind() == SyntaxKind.PublicKeyword);

            // Note: Not finding protected or internal
            if (accessToken.Kind() != SyntaxKind.None)
            {
                // Find the name of the field:
                var name = fieldDeclaration.DescendantTokens()
                              .SingleOrDefault(token => token.IsKind(SyntaxKind.IdentifierToken)).Value;
                var diagnostic = Diagnostic.Create(Rule, fieldDeclaration.GetLocation(), name, accessToken.Value);
                context.ReportDiagnostic(diagnostic);
            }
        }
    }
}

using System.Collections.Immutable;
using System.Composition;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CodeActions;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Syntax;
 
namespace CodingStandards
{
    [ExportCodeFixProvider(LanguageNames.CSharp, Name = nameof(CodingStandardsCodeFixProvider)), Shared]
    public class CodingStandardsCodeFixProvider : CodeFixProvider
    {
        public sealed override ImmutableArray<string> FixableDiagnosticIds
        {
            get { return ImmutableArray.Create(CodingStandardsAnalyzer.DiagnosticId); }
        }

        public sealed override FixAllProvider GetFixAllProvider()
        {
            return WellKnownFixAllProviders.BatchFixer;
        }

        public sealed override async Task RegisterCodeFixesAsync(CodeFixContext context)
        {
            var root = await context.Document.GetSyntaxRootAsync(context.CancellationToken).ConfigureAwait(false);

            // TODO: Replace the following code with your own analysis, generating a CodeAction for each fix to suggest
            var diagnostic = context.Diagnostics.First();
            var diagnosticSpan = diagnostic.Location.SourceSpan;

            // Find the type declaration identified by the diagnostic.
            var declaration = root.FindToken(diagnosticSpan.Start)
                                   .Parent.AncestorsAndSelf().OfType<FieldDeclarationSyntax>()
                                   .First();

            // Register a code action that will invoke the fix.
            context.RegisterCodeFix(
                CodeAction.Create("Make Private", 
                c => makePrivateDeclarationAsync(context.Document, declaration, c)),
                diagnostic);
        }

        async Task<Document> makePrivateDeclarationAsync(Document document, FieldDeclarationSyntax declaration, CancellationToken c)
        {
            var accessToken = declaration.ChildTokens()
                .SingleOrDefault(token => token.Kind() == SyntaxKind.PublicKeyword);

            var privateAccessToken = SyntaxFactory.Token(SyntaxKind.PrivateKeyword);

            var root = await document.GetSyntaxRootAsync(c);
            var newRoot = root.ReplaceToken(accessToken, privateAccessToken);

            return document.WithSyntaxRoot(newRoot);
        }
    }
}

To update a document in MongoDB, I used to fetch it, update the values, and save back the entry. I would question the need for an update method. Looking back, it's evident that performance optimizations were hardly a concern when working on a personal project.

I love Entity Framework. I also like (not love) nHibernate. That’s right, as a DBA and data professional, I’m telling you I love Object/Relational Mapping tools (ORM). I think this is a technology set that the DBA needs to more tightly embrace. Let me tell you why.