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Class AlterColumnExpression

Represents a migration expression used to alter the definition of an existing column in a database table. This may include changing the column's type, constraints, or other properties.

Inheritance

object

MigrationExpressionBase

Namespace: Umbraco.Cms.Infrastructure.Migrations.Expressions.Alter.Expressions

Assembly: Umbraco.Infrastructure.dll

Syntax

public class AlterColumnExpression : MigrationExpressionBase, IMigrationExpression

Constructors

AlterColumnExpression(IMigrationContext)

Initializes a new instance of the AlterColumnExpression class with the specified migration context.

Declaration

public AlterColumnExpression(IMigrationContext context)

Parameters

Type	Name	Description
IMigrationContext	context	The IMigrationContext to use for the migration operation.

Properties

Column

Gets or sets the definition of the column to be altered.

Declaration

public virtual ColumnDefinition Column { get; set; }

Property Value

Type	Description
ColumnDefinition

SchemaName

Gets or sets the name of the schema that contains the column to be altered.

Declaration

public virtual string? SchemaName { get; set; }

Property Value

Type	Description
string

TableName

Gets or sets the name of the table containing the column to be altered.

Declaration

public virtual string? TableName { get; set; }

Property Value

Type	Description
string

Methods

GetSql()

Declaration

protected override string GetSql()

Returns

Type	Description
string