entity-framework Questions

Cannot connect .NET app with MongoDB (System.MissingMethodException: Method not found:)

November 22, 2024
RakibulB
2 Answers

I am simply trying to connect my MongoDB cluster with my .NET app, but when I test my routes with swagger i get this error: System.MissingMethodException: Method not found: 'MongoDB.Bson.GuidRepresentationMode MongoDB.Bson.BsonDefaults.get_GuidRepresentationMode()'. at MongoDB.Driver.MongoUrlBuilder..ctor() at MongoDB.Driver.MongoUrlBuilder..ctor(String url) at Microsoft.EntityFrameworkCore.MongoOptionsExtension.SanitizeConnectionStringForLogging(String connectionString) at…

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Postgresql – .net ef migration error "no schema has been selected to create in"

September 30, 2024
MagicWheel
2 Answers

I can't figure out where i made a mistake. I have 2 schemas in my db (Postgre): BooksStore and PollHub. My project should use BooksStore. I use ef code-first method to create tables in schema. So I google for two…

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How to save nested JSON into SQL Server using C# on .NET Core with Entity Framework?

September 2, 2024
Veasna
3 Answers

I have my JSON objects in this format: [ { "id": "k002f3d", "usage": { "sent": 0, "recv": 2, "total": 2 } }, { "id": "k641327", "usage": { "sent": 0, "recv": 2, "total": 2 } }, { "id": "k6419b2", "usage": {…

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How do I configure EF Core in Azure Function .NET8-isolated with Entra app authentication?

August 26, 2024
swaglord mcmuffin'
2 Answers

I have a bit of an issue that causes major problem for me at this point, and I can't seem to find any resolution consulting the docs or in similar questions asked here. I only have this problem when using…

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Asp.net – Multiple tables query with repository pattern

July 2, 2024
RifloSnake
2 Answers

I have an ASP.NET Web API project, and have implemented repository and unitOfWork patterns. I currently have a big SQL query that I want to implement in code, it includes a lot of tables and joins. My current solution is…

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Asp.net – How do I declare the CreatedBy field to be null for serialization but non null for database?ll

June 19, 2024
The One
2 Answers

In my server, my field "Name" is marked as [Required] so EntityFramework can mark it as non nullable on the migration: public class MyClass { [Required] public string? CreatedBy {get;set;} } But the "CreatedBy" field is set at creation on…

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Visual Studio Code – Creating an EF migration for a SQL script

June 17, 2024
bilpor
3 Answers

I have created a SQL script file with a bunch of insert's into a table if the values do not already exist. It's made up with a series of: INSERT INTO Departments (Number, [Name]) SELECT 3, 'TOPS' WHERE NOT EXISTS…

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Issues with EF Update Command and Azure Credentials in ASP.NET Core Application

May 10, 2024
Yamen
2 Answers

I am encountering errors while attempting to run an Entity Framework (EF) update command (dotnet ef database update) from my ASP.NET Core application. The application is connected to a database hosted on Azure. After executing the EF update command, I…

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How to recover a accidentally deleted table in ASP.NET Web API & Entity Framework project with Azure SQL Server?

April 26, 2024
CR7
2 Answers

I accidentally deleted a table manually from my Azure SQL Server database in an ASP.NET Web API & Entity Framework project. How can I restore it? Migrations won't update because it thinks the database is up to date, unaware of…

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Asp.net – Entity Framework: Save Private Field

April 21, 2024
Rgamer43
2 Answers

I'm using Entity Framework with MongoDB. I have a class, Account with the following field: private readonly byte[] salt; Account is configured in Entity Framework like so: protected override void OnModelCreating(ModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); modelBuilder.Entity<Account>().ToCollection("accounts"); } When I save an…

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