معرفی QuickGrid برای Blazor
.NET 6 Preview 1 is now available and ready for evaluation. This is the first preview of .NET 6, the next major update to the .NET platform. .NET 6 is expected to ship in November of this year, and will be a Long Term Support (LTS) release.
Blazor 5x - قسمت 19 - کار با فرمها - بخش 7 - نکات ویژهی کار با EF-Core در برنامههای Blazor Server
// Do NOT do this anymore //services.AddDbContext(o => o.UseSQlite("filename.db")); // But instead do this: services.AddDbContextFactory(o => o.UseSQlite("filename.db"));
public class MyService { private readonly IDbContextFactorey _contextFactory; public MyService(IDbContextFactory contextFactory) { _contextFactory = contextFactory; } // create a new context for each operation / unit of work public async Task DoSomethingAsync() { using (var ctx = _contextFactory.CreateDbContext()) { // this using clause contains your unit of work } } }
یکپارچه سازی Visual Studio و زبان R
R is decidedly the most popular statistical/data analysis language in use today. R Tools for Visual Studio brings together the power of R and Visual Studio in a convenient and easy to use plug-in that’s free and Open Source
فناوری blockchain چیست
So, what is a blockchain? It's a complicated question because the inventor of Bitcoin, the pseudonymous Satoshi Nakamoto, didn't use the term in the original Bitcoin paper.
For many, “the blockchain” is nothing more than a shorthand for "how
Bitcoin works." But more usefully, the blockchain is a distributed
ledger, shared by untrusted participants, with strong guarantees about
accuracy and consistency