EntityFrameworkCore Key column auto increment from specific value

MS SQL Auto Increment non Identity Column

This is after Update as discussed in the comments. It simply increments Version ...of this row.......ALTER TRIGGER triggerIncrementUpdate ON Table1 AFTER UPDATE AS BEGIN UPDATE Table1 SET Version += 1 FROM Table1 INNER JOIN INSERTED As I ON Table1.ID = I.ID END

Auto-Incremented value not working in PostgreSQL when using EntityFramework Core

Because you created the column with the specific type ...integer... you need to specify the type as ...serial... for PostgreSQL to generate the id for you....https://www.postgresql.org/docs/current/static/datatype-numeric.html#DATATYPE-SERIAL

c# mocking EF6 context and dealing with auto increment primary keys

Has anyone found a good way to get auto-increment primary keys in a mocked context to work when testing service layers?...In most cases, seeding the primary key as part of the data to test is possible. But many service layer methods deal with creating multiple objects or linking other processes together that quickly fail if you are not responsible ...

Why does EF core ignore auto increment column and try to update this?

In mssql database I have an auto increment column named ...AutoIncrementNumber... which is configured with this mentioned ...protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<User>(entity => { entity.Property(e =>e.AutoIncrementNumber).ValueGeneratedOnAdd(); } } ...I added a new user and want t...

Auto increment non key value entity framework core 2.0

I've got an object that has a key stored as a GUID as well as a friendlyID, like this:...public class Job { [Key] public Guid Id { get; set; } [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int FriendlyId { get; set; } public string Description { get; set; } } ...However when I try to update description using my...

Identity auto increment not applied on column

It's type ...should be ...int... to make it Identity:...public int Id { get; set; }

How to tell Entity Framework that my ID column is auto-incremented (AspNet Core 2.0 + PostgreSQL)?

Code is simple. ...Tag.cs... entity:...public partial class Tag { [Key] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int Id { get; set; } public string Name { get; set; } public string Description { get; set; } } ...HomeController.cs... class:...public async Task<IActionResult> Index() { tagRepository.Insert(n...

How to set a property to be "Identity" or auto-incremented column with Entity Framework Core?

In a new WPF project that I am writing using c#, I want to attempt on using ...Entity Framework Core... to interact with my SQL Server database....Every time I try to add model to my context, I get the following error ...Cannot insert explicit value for identity column in table 'Orders' when IDENTITY_INSERT is set to OFF....I am using a ...Reposito...

Generate auto-increment int column in MariaDB with EFCore

The Problem:...I'm trying to create a table with efcore in .netcore 2.2 using codefirst having an auto-increment integer primary key starting at 0. All solutions i found result in either an error on adding migration or the auto-incrementing works but start at int.MinValue....All the following solutions have been tried seperated, not combined: ...So...

Problem with migrations in column unique and auto-increment using MySQL

I have a problem when I use the MySQL database in my project. In general, some project tables need to have an auto-incrementing field as data is entered. However, in MySQL a column except Id can only be auto-incrementing if it is unique key. For example: ...public class Client { [Key] public Guid Id { get; set; } [MaxLength(200)] p...