Delete table from EF CodeFirst migration

Entity Framework deletes related entities in a cascading manner.

This is exactly how cascading deletes behaves in EF. Setting ...Cascade... on a relation in EF designer instructs EF to execute ...DELETE... statement for each loaded realated entity. It doesn't say anything about ...ON CASCADE DELETE... in the database....Setting Cascade deletion when using EF needs two steps:...Set ...Cascade... on relation in EF...

How to disable cascade delete for link tables in EF code-first?

I got the answer. :-) Those cascade deletes were being created because of ...ManyToManyCascadeDeleteConvention.... You need to remove this convention to prevent it from creating cascade deletes for link tables:...modelBuilder.Conventions.Remove<ManyToManyCascadeDeleteConvention>();

How to recreate my EF CodeFirst Table?

In system tables there is a table called...__MigrationHistory ......I deleted it....In Package manager console ran command "update-database" Problem fixed!...More info:...http://blog.oneunicorn.com/2012/02/27/code-first-migrations-making-__migrationhistory-not-a-system-table/

Error deploying to SQL Azure using EF 6 alpha3 Code First and Migrations creating __MigrationHistory table

This is a ...bug... in Alpha 3 - Sorry for the inconvenience....There is a pretty easy workaround:...1) Create a custom migration SQL generator:...public class AzureSqlGenerator : SqlServerMigrationSqlGenerator { protected override void Generate(CreateTableOperation createTableOperation) { if ((createTableOperation.PrimaryKey != nul...

Entity framework manually deleted tables cant be generated from EF migration

I finally figured out the solution . Its basically change in strategy how we use migration . The Migration Add-migration only checks the Models and the previous migration timestamp cs files possibly . so until and unless we provide ...update-database... command in nuget . it Never actually gets to know which Tables have got deleted manually . So t...

EF 6 CodeFirst Migrations Not Working

You'll need to run the "Add-Migration" command that will actually add the migration that the 'Update-Database' command will run:...Code First Migrations..."Add-Migration will scaffold the next migration based on changes you have made to your model since the last migration was created"

How to disable cascade delete for link tables in EF code-first?

I got the answer. :-) Those cascade deletes were being created because of ...ManyToManyCascadeDeleteConvention.... You need to remove this convention to prevent it from creating cascade deletes for link tables:...modelBuilder.Conventions.Remove<ManyToManyCascadeDeleteConvention>();

How do i delete single record from table using EF 6.1.1

There are no changes about how to delete an entity between EF 4 and EF 6. To delete an entity using Entity Framework, you need to use the ...Remove... method on ...DbSet.... ...Remove... works for both ...existing and newly added entities.... ...Calling ...Remove... on an entity that has been added but not yet saved to the database will cancel the ...

EntityFramework CodeFirst: CASCADE DELETE for same table many-to-many relationship

1) I don't see any straightforward way to control the cascade on the many-to-many relationships using FluentApi. ...2) The only available way I can think of to control that is by using the ...ManyToManyCascadeDeleteConvention..., which I guess is enabled by default, at least it is for me. I just checked one of my migrations including a many-to-many...

Delete the foreign key data when the data in the foreign table is deleted

If you don't want to do it through the SQL server, you'll have to load all the child objects in the ...db context... and delete them.

EF 6 Code First Migration after deleting data from __MigrationHistory table

I'm not sure if its good approach to fix that but it worked for me....I just did insert into that table with proper version and names of the already applied migrations, I did it in EF Core and it works actually, but please wait for somebody to comfirm that what im writing about....The problem I see there is that you need two more fields to be fille...