DbMigration.DropColumn Method

Definition

Namespace:

System.Data.Entity.Migrations

Assembly:

EntityFramework.dll

Overloads

DropColumn(String, String, Object)	Adds an operation to drop an existing column. 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.
DropColumn(String, String, IDictionary<String,Object>, Object)	Adds an operation to drop an existing column. 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.

DropColumn(String, String, Object)

Adds an operation to drop an existing column.

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.

[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed")]
protected internal void DropColumn (string table, string name, object anonymousArguments = null);

member this.DropColumn : string * string * obj -> unit

Protected Friend Sub DropColumn (table As String, name As String, Optional anonymousArguments As Object = null)

Parameters

table

String

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

name

String

The name of the column to be dropped.

anonymousArguments

Object

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

Attributes

SuppressMessageAttribute

DropColumn(String, String, IDictionary<String,Object>, Object)

Adds an operation to drop an existing column.

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.

[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed")]
protected internal void DropColumn (string table, string name, System.Collections.Generic.IDictionary<string,object> removedAnnotations, object anonymousArguments = null);

member this.DropColumn : string * string * System.Collections.Generic.IDictionary<string, obj> * obj -> unit

Protected Friend Sub DropColumn (table As String, name As String, removedAnnotations As IDictionary(Of String, Object), Optional anonymousArguments As Object = null)

Parameters

table

String

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

name

String

The name of the column to be dropped.

removedAnnotations

IDictionary<String,Object>

Custom annotations that exist on the column that is being dropped. May be null or empty.

anonymousArguments

Object

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

Attributes

SuppressMessageAttribute