AddUniqueConstraintOperation Class

Definition

Namespace:

Microsoft.EntityFrameworkCore.Migrations.Operations

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Package:

Microsoft.EntityFrameworkCore.Relational v8.0.0

A MigrationOperation to add a new unique constraint.

[System.Diagnostics.DebuggerDisplay("ALTER TABLE {Table} ADD CONSTRAINT {Name} UNIQUE")]
public class AddUniqueConstraintOperation : Microsoft.EntityFrameworkCore.Migrations.Operations.MigrationOperation, Microsoft.EntityFrameworkCore.Migrations.Operations.ITableMigrationOperation

[<System.Diagnostics.DebuggerDisplay("ALTER TABLE {Table} ADD CONSTRAINT {Name} UNIQUE")>]
type AddUniqueConstraintOperation = class
    inherit MigrationOperation
    interface ITableMigrationOperation

Public Class AddUniqueConstraintOperation
Inherits MigrationOperation
Implements ITableMigrationOperation

Inheritance

Object

AnnotatableBase

Annotatable

MigrationOperation

AddUniqueConstraintOperation

Attributes

DebuggerDisplayAttribute

Implements

ITableMigrationOperation

Remarks

See Database migrations for more information and examples.

Constructors

AddUniqueConstraintOperation()

Properties

Columns	The ordered-list of column names for the columns that make up the constraint.
IsDestructiveChange	Indicates whether or not the operation might result in loss of data in the database. (Inherited from MigrationOperation)
IsReadOnly	Indicates whether the current object is read-only. (Inherited from AnnotatableBase)
Item[String]	Gets the value annotation with the given name, returning null if it does not exist. (Inherited from Annotatable)
Name	The name of the constraint.
Schema	The schema that contains the table, or null if the default schema should be used.
Table	The table to which the constraint should be added.

Methods

AddAnnotation(String, Annotation)	Adds an annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from Annotatable)
AddAnnotation(String, Object)	Adds an annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from Annotatable)
AddAnnotations(IEnumerable<IAnnotation>)	Adds annotations to this object. (Inherited from AnnotatableBase)
AddAnnotations(IReadOnlyDictionary<String,Object>)	Adds annotations to this object. (Inherited from AnnotatableBase)
AddRuntimeAnnotation(String, Annotation)	Adds a runtime annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from AnnotatableBase)
AddRuntimeAnnotation(String, Object)	Adds a runtime annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from AnnotatableBase)
AddRuntimeAnnotations(IEnumerable<Annotation>)	Adds runtime annotations to this object. (Inherited from AnnotatableBase)
AddRuntimeAnnotations(IReadOnlyDictionary<String,Object>)	Adds runtime annotations to this object. (Inherited from AnnotatableBase)
CreateAnnotation(String, Object)	Creates a new annotation. (Inherited from Annotatable)
CreateFrom(IUniqueConstraint)	Creates a new AddUniqueConstraintOperation from the specified unique constraint.
CreateRuntimeAnnotation(String, Object)	Creates a new runtime annotation. (Inherited from AnnotatableBase)
EnsureMutable()	Throws if the model is read-only. (Inherited from Annotatable)
EnsureReadOnly()	Throws if the model is not read-only. (Inherited from Annotatable)
FindAnnotation(String)	Gets the annotation with the given name, returning null if it does not exist. (Inherited from Annotatable)
FindRuntimeAnnotation(String)	Gets the runtime annotation with the given name, returning null if it does not exist. (Inherited from AnnotatableBase)
GetAnnotation(String)	Gets the annotation with the given name, throwing if it does not exist. (Inherited from AnnotatableBase)
GetAnnotations()	Gets all annotations on the current object. (Inherited from Annotatable)
GetOrAddAnnotation(String, Object)	Adds an annotation to this object or returns the existing annotation if one with the specified name already exists. (Inherited from Annotatable)
GetOrAddRuntimeAnnotationValue<TValue,TArg>(String, Func<TArg,TValue>, TArg)	Gets the value of the runtime annotation with the given name, adding it if one does not exist. (Inherited from AnnotatableBase)
GetRuntimeAnnotations()	Gets all runtime annotations on the current object. (Inherited from AnnotatableBase)
OnAnnotationSet(String, Annotation, Annotation)	Called when an annotation was set or removed. (Inherited from Annotatable)
RemoveAnnotation(String)	Removes the given annotation from this object. (Inherited from Annotatable)
RemoveRuntimeAnnotation(String)	Removes the given runtime annotation from this object. (Inherited from AnnotatableBase)
SetAnnotation(String, Annotation, Annotation)	Sets the annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from Annotatable)
SetAnnotation(String, Annotation)	Sets the annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from Annotatable)
SetAnnotation(String, Object)	Sets the annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from Annotatable)
SetRuntimeAnnotation(String, Annotation, Annotation)	Sets the runtime annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from AnnotatableBase)
SetRuntimeAnnotation(String, Object)	Sets the runtime annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from AnnotatableBase)

Explicit Interface Implementations

IAnnotatable.AddRuntimeAnnotation(String, Object)	Adds a runtime annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from AnnotatableBase)
IAnnotatable.FindRuntimeAnnotation(String)	Gets the runtime annotation with the given name, returning null if it does not exist. (Inherited from AnnotatableBase)
IAnnotatable.GetRuntimeAnnotations()	Gets all the runtime annotations on the current object. (Inherited from AnnotatableBase)
IAnnotatable.RemoveRuntimeAnnotation(String)	Removes the given runtime annotation from this object. (Inherited from AnnotatableBase)
IAnnotatable.SetRuntimeAnnotation(String, Object)	Sets the runtime annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from AnnotatableBase)
IMutableAnnotatable.AddAnnotation(String, Object)	Adds an annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from Annotatable)
IMutableAnnotatable.RemoveAnnotation(String)	Removes the given annotation from this object. (Inherited from Annotatable)
IMutableAnnotatable.SetOrRemoveAnnotation(String, Object)	Sets the annotation stored under the given name. Overwrites the existing annotation if an annotation with the specified name already exists. Removes the existing annotation if null is supplied. (Inherited from Annotatable)
IReadOnlyAnnotatable.FindAnnotation(String)	Gets the annotation with the given name, returning null if it does not exist. (Inherited from AnnotatableBase)
IReadOnlyAnnotatable.GetAnnotations()	Gets all annotations on the current object. (Inherited from AnnotatableBase)
IReadOnlyAnnotatable.Item[String]	Gets the value of the annotation with the given name, returning null if it does not exist. (Inherited from AnnotatableBase)

Extension Methods