All Questions

I decided to add models to work with the database. That's how it was and working public sealed class DatabaseContext : DbContext { public DbSet<Payment> Payments { get; set; } = null!; I ...

In my company, we have a system with the following structure: Moldable hosts: servers are defined by their IP addresses Moldable databases: each database is created based on a country code Company-...

My app receives multiple files (50 files, each file with 1000 rows) and processes them in Dataflow blocks. In one of the blocks UploadToDatabaseBlock, I set MaxDegreeOfParalellism to 8. This creates ...

Ok, so back in the day we used the ADO and created entities, but now that Visual Studio Pro 2009 won't work with .NET 8 anymore, it seems to be the target for today's era. Anyways besides that I had a ...

I'm trying to unit test the derived class of a dbContext. I keep getting the error message [Fact] public void GetAssync_Method_Called() { var options = new DbContextOptionsBuilder<CoreDbContext&...

I have the User and Role models. Where a many-to-many relationship is generated between both models, represented by a collection at both ends: ICollection<User> Users {get;set:} in the Role ...

This is my first time asking for help on Stack Overflow. If there are any rules that I didn't follow, just point them out, and I'll take note of them in the next question. An exception was thrown when ...

I'm working on an ASP.NET Core application where I have a DbContext instance injected via dependency injection. The context is registered as scoped. However, I'm experiencing an issue where, when ...

My user entity: public class User : IdentityUser<long> { public Office Office { get; set; } // not nullable // ...other custom properties } Suppose I want to create a new user: var ...

My Blazor Form works and does valid submission,but when I submit the form multiple times in a very small time interval, it gives different types of exceptions, like: Microsoft.AspNetCore.Components....

We generated Data (for DBContext) and Models by scaffolding an existing SQL Server database. In the result, we found the following checking of modelBuilder.HasDefaultSchema(). For scaffolding, we ...

Which options to use when configuring the DBContext for multi tenant design. The application is a Dot net core WebAPI, with many customers each having separate Database. The DBContext connection ...

I want to have a global configuration in my DBContext to save all Enums in my model as string in the data store, the constraint is I need the config to work even if the Enum is nullable I already ...

I want to add a migration but it is not working for me - I get this error: Unable to create a 'DbContext' of type ''. The exception 'Unable to resolve service for type 'Microsoft.EntityFrameworkCore....

I recently got to know that SQL native client will no longer support from SQL Server 2022 and we may need to upgrade the provider. Please refer to this official Microsoft document: MSDN My application ...