DbMigration.AddColumn Method

  • Reference

Definition

Namespace:
System.Data.Entity.Migrations
Assembly:
EntityFramework.dll

Adds an operation to add a column to an existing table.

Entity Framework Migrations APIs are not designed to accept input provided by untrusted sources (such as the end user of an application). If input is accepted from such sources it should be validated before being passed to these APIs to protect against SQL injection attacks etc.

protected internal void AddColumn (string table, string name, Func<System.Data.Entity.Migrations.Builders.ColumnBuilder,System.Data.Entity.Migrations.Model.ColumnModel> columnAction, object anonymousArguments = null);
[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed")]
protected internal void AddColumn (string table, string name, Func<System.Data.Entity.Migrations.Builders.ColumnBuilder,System.Data.Entity.Migrations.Model.ColumnModel> columnAction, object anonymousArguments = null);
member this.AddColumn : string * string * Func<System.Data.Entity.Migrations.Builders.ColumnBuilder, System.Data.Entity.Migrations.Model.ColumnModel> * obj -> unit
Protected Friend Sub AddColumn (table As String, name As String, columnAction As Func(Of ColumnBuilder, ColumnModel), Optional anonymousArguments As Object = null)

Parameters

table
String

The name of the table to add the column to. Schema name is optional, if no schema is specified then dbo is assumed.

name
String

The name of the column to be added.

columnAction
Func<ColumnBuilder,ColumnModel>

An action that specifies the column to be added. i.e. c => c.Int(nullable: false, defaultValue: 3)

anonymousArguments
Object

Additional arguments that may be processed by providers. Use anonymous type syntax to specify arguments e.g. 'new { SampleArgument = "MyValue" }'.

Attributes
SuppressMessageAttribute

Applies to