MigrationBuilder.DropForeignKey(String, String, String) Method

Definition

Namespace:

Microsoft.EntityFrameworkCore.Migrations

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Package:

Microsoft.EntityFrameworkCore.Relational v8.0.0

Builds a DropForeignKeyOperation to drop an existing foreign key constraint.

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.DropForeignKeyOperation> DropForeignKey (string name, string table, string? schema = default);

abstract member DropForeignKey : string * string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.DropForeignKeyOperation>
override this.DropForeignKey : string * string * string -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.DropForeignKeyOperation>

Public Overridable Function DropForeignKey (name As String, table As String, Optional schema As String = Nothing) As OperationBuilder(Of DropForeignKeyOperation)

Parameters

name

String

The name of the foreign key constraint to drop.

table

String

The table that contains the foreign key.

schema

String

The schema that contains the table, or null to use the default schema.

Returns

OperationBuilder<DropForeignKeyOperation>

A builder to allow annotations to be added to the operation.

Remarks

See Database migrations for more information and examples.