DbMigration.AlterTableAnnotations<TColumns> Method (String, Func<ColumnBuilder, TColumns>, IDictionary<String, AnnotationValues>, Object)
Adds an operation to handle changes in the annotations defined on tables. 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.
Assembly: EntityFramework (in EntityFramework.dll)
[SuppressMessageAttribute("Microsoft.Design", "CA1026:DefaultParametersShouldNotBeUsed")] protected internal void AlterTableAnnotations<TColumns>( string name, Func<ColumnBuilder, TColumns> columnsAction, IDictionary<string, AnnotationValues> annotations, object anonymousArguments = null )
Parameters
- name
-
Type:
System.String
The name of the table. Schema name is optional, if no schema is specified then dbo is assumed.
- columnsAction
-
Type:
System.Func<ColumnBuilder, TColumns>
An action that specifies the columns to be included in the table. i.e. t => new { Id = t.Int(identity: true), Name = t.String() }
- annotations
-
Type:
System.Collections.Generic.IDictionary<String, AnnotationValues>
The custom annotations on the table that have changed.
- anonymousArguments
-
Type:
System.Object
The additional arguments that may be processed by providers. Use anonymous type syntax to specify arguments e.g. 'new { SampleArgument = "MyValue" }'.
Type Parameters
- TColumns
The columns in this operation. You do not need to specify this type, it will be inferred from the columnsAction parameter you supply.