ElementLink Class

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07/25/2011

Base class for all domain relationships.

Inheritance Hierarchy

System.Object
  Microsoft.VisualStudio.Modeling.ModelElement
    Microsoft.VisualStudio.Modeling.ElementLink
      More...

Namespace: Microsoft.VisualStudio.Modeling
Assembly: Microsoft.VisualStudio.Modeling.Sdk.10.0 (in Microsoft.VisualStudio.Modeling.Sdk.10.0.dll)

Syntax

'宣告
<SerializableAttribute> _
<DomainObjectIdAttribute("706debaa-dd2d-4293-99af-695aadd36c9a")> _
<DomainRelationshipAttribute(AllowsDuplicates := True)> _
Public MustInherit Class ElementLink _
    Inherits ModelElement

[SerializableAttribute]
[DomainObjectIdAttribute("706debaa-dd2d-4293-99af-695aadd36c9a")]
[DomainRelationshipAttribute(AllowsDuplicates = true)]
public abstract class ElementLink : ModelElement

[SerializableAttribute]
[DomainObjectIdAttribute(L"706debaa-dd2d-4293-99af-695aadd36c9a")]
[DomainRelationshipAttribute(AllowsDuplicates = true)]
public ref class ElementLink abstract : public ModelElement

[<AbstractClass>]
[<SerializableAttribute>]
[<DomainObjectIdAttribute("706debaa-dd2d-4293-99af-695aadd36c9a")>]
[<DomainRelationshipAttribute(AllowsDuplicates = true)>]
type ElementLink =  
    class
        inherit ModelElement
    end

public abstract class ElementLink extends ModelElement

The ElementLink type exposes the following members.

Constructors

	Name	Description
	ElementLink	Creates a new instance of the ElementLink class.

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Properties

	Name	Description
	Id	Gets the ID of the element. (Inherited from ModelElement.)
	IsActive	Gets the IsActive flag and verifies to see whether the element is active. (Inherited from ModelElement.)
	IsDeleted	Gets the IsDeleted flag and checks to see whether the element has been deleted from the model. (Inherited from ModelElement.)
	IsDeleting	Gets the IsDeleting flag and verifies whether the element is currently being deleted from the model. (Inherited from ModelElement.)
	LinkedElements	Gets a read-only collection of elements connected by this element link.
	Partition	Gets or sets the Partition that contains the element. (Inherited from ModelElement.)
	Store	Gets the Store that contains the element. (Inherited from ModelElement.)

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Methods

	Name	Description
	CanMerge	Verifies whether a source element can be added to this element. (Inherited from ModelElement.)
	ChooseMergeTarget(ElementGroup)	Selects a target element to accept as its child an element that the user wants to copy, drag, or create. (Inherited from ModelElement.)
	ChooseMergeTarget(ElementGroupPrototype)	Selects a target element to accept as its child an element that the user wants to copy, drag, or create. (Inherited from ModelElement.)
	Copy()	Creates a copy of the element in the model. (Inherited from ModelElement.)
	Copy(IEnumerable<Guid>)	Creates a copy of the element and its child links and elements. (Inherited from ModelElement.)
	Delete()	Deletes an element from the model. (Inherited from ModelElement.)
	Delete(array<Guid[])	Deletes an element from the model. (Inherited from ModelElement.)
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetDomainClass	Gets the most-derived domain class for this element. (Inherited from ModelElement.)
	GetDomainRelationship	Gets the domain relationship that this link instantiates.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetRoleCollection<TCollection, TElement>(Guid)	Gets or creates the linked element collection (Inherited from ModelElement.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	MergeConfigure	Allows the model element to configure itself immediately after the Merge process has related it to the target element. (Inherited from ModelElement.)
	MergeDisconnect	Disconnects a source element from a target element. (Inherited from ModelElement.)
	MergeRelate	Creates a relationship between this target element and the specified source element. (Inherited from ModelElement.)
	MoveBefore	Change the order of links connected to an element, moving this link before another.
	MoveToIndex	Move this link to a specified index position in the list.
	OnCopy	Called when this element has been created as a copy of another element. (Inherited from ModelElement.)
	OnDeleted	Called when this element has been deleted from the model. (Inherited from ModelElement.)
	OnDeleting	Called when this element is about to be deleted. (Inherited from ModelElement.)
	OnResurrected	Called when this element has been added back to a model. (Inherited from ModelElement.)
	OnRolePlayerChanged	Called when the role player has been changed.
	OnRolePlayerChanging	Called when the role player will be changed.
	OnRolePlayerPositionChanged	Called when the position of a role has changed. (Inherited from ModelElement.)
	OnRolePlayerPositionChanging	Called when a role player position is about to change. (Inherited from ModelElement.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Extension Methods

	Name	Description
	AddExtension(Guid)	Overloaded. Extend this ModelElement with newly instantiated extension of the identified domain type. An InvalidOperationException will be thrown if the element already has an extension of that type. (Defined by ModelElementExtensionMethods.)
	AddExtension(Type)	Overloaded. Extend this ModelElement with a newly instantiated extension of the specified type. An InvalidOperationException will be thrown if the element already has an extension of that type. (Defined by ModelElementExtensionMethods.)
	AddExtension(DomainClassInfo)	Overloaded. Extend this ModelElement with a newly instantiated extension of the specified domain type. An InvalidOperationException will be thrown if the element already has an extension of that type. (Defined by ModelElementExtensionMethods.)
	AddExtension(ExtensionElement)	Overloaded. Extend this ModelElement with a specific extension. An InvalidOperationException will be thrown if the element already has an extension of the same type. (Defined by ModelElementExtensionMethods.)
	AddExtension<T>()	Overloaded. Extend this ModelElement with a newly instantiated extension of a particular type. An InvalidOperationException will be thrown if the element already has an extension of the same type. (Defined by ModelElementExtensionMethods.)
	CanDelete	Deletes the element from the model. (Defined by ImmutabilityExtensionMethods.)
	GetAllExtensions	Return an enumerable that performs a breadth first traversal across the tree of extension elements embedded in this ModelElement. (Defined by ModelElementExtensionMethods.)
	GetBaseElement	Returns the root of the virtual MEL in which the specified ModelElement is participating. (Defined by ModelElementExtensionMethods.)
	GetExtension(Guid)	Overloaded. (Defined by ModelElementExtensionMethods.)
	GetExtension(Type)	Overloaded. Get the ExtensionElement of the specified type from the available extensions of this ModelElement. If the element has no such extension then an InvalidOperationException will be raised. (Defined by ModelElementExtensionMethods.)
	GetExtension(DomainClassInfo)	Overloaded. (Defined by ModelElementExtensionMethods.)
	GetExtension<T>()	Overloaded. Get the ExtensionElement of the specified type from the available extensions of this ModelElement. If the element has no such extension then an InvalidOperationException will be raised. (Defined by ModelElementExtensionMethods.)
	GetLocks	Get the lock flags for this element. This will include any locks enabled on the Partition containing the element. (Defined by ImmutabilityExtensionMethods.)
	IsExtendedBy(Guid)	Overloaded. Query whether this ModelElement is currently extended by an ExtensionElement of a particular type. (Defined by ModelElementExtensionMethods.)
	IsExtendedBy(Type)	Overloaded. Query whether this ModelElement is currently extended by an ExtensionElement of a particular type. (Defined by ModelElementExtensionMethods.)
	IsExtendedBy(DomainClassInfo)	Overloaded. Query whether this ModelElement is currently extended by an ExtensionElement of a particular type. (Defined by ModelElementExtensionMethods.)
	IsLocked	Test whether this element has any of a specified set of locks (Defined by ImmutabilityExtensionMethods.)
	RemoveExtension(Type)	Overloaded. Remove any extension of this ModelElement that is of a particular type. (Defined by ModelElementExtensionMethods.)
	RemoveExtension(Guid)	Overloaded. Remove any extension of the specified ModelElement that is of a particular type. (Defined by ModelElementExtensionMethods.)
	RemoveExtension(DomainClassInfo)	Overloaded. Remove any extension of the specified ModelElement that is of a particular type. (Defined by ModelElementExtensionMethods.)
	RemoveExtension(ExtensionElement)	Overloaded. Remove a specified ExtensionElement from the extensions of this ModelElement. (Defined by ModelElementExtensionMethods.)
	SetLocks	Set the lock flags of this element (Defined by ImmutabilityExtensionMethods.)
	TryGetExtension(Guid)	Overloaded. (Defined by ModelElementExtensionMethods.)
	TryGetExtension(Type)	Overloaded. (Defined by ModelElementExtensionMethods.)
	TryGetExtension(DomainClassInfo)	Overloaded. (Defined by ModelElementExtensionMethods.)
	TryGetExtension<T>()	Overloaded. Get the ExtensionElement of the specified type from the available extensions of this ModelElement. If this element has no such extension then the result will be null. (Defined by ModelElementExtensionMethods.)

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Fields

	Name	Description
	DomainClassId	ID of the domain class for the ElementLink.

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Explicit Interface Implementations

	Name	Description
	IMergeElements.CanMerge	Returns true if this element can merge with the content of the prototype. (Inherited from ModelElement.)
	IMergeElements.ChooseMergeTarget(ElementGroup)	(Inherited from ModelElement.)
	IMergeElements.ChooseMergeTarget(ElementGroupPrototype)	(Inherited from ModelElement.)
	IMergeElements.MergeConfigure	(Inherited from ModelElement.)
	IMergeElements.MergeDisconnect	(Inherited from ModelElement.)
	IMergeElements.MergeRelate	(Inherited from ModelElement.)

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Remarks

When you define a domain relationship between two ModelElements in your DSL Definition, the generated class is derived from ElementLink. Many relationships in the DSL runtime and designer are also ElementLinks.

ElementLinks are also ModelElements, and can therefore have properties and be connected by links.

For more information, see Navigating and Updating a Model in Program Code.

Examples

[redirect] Walkthrough: Creating a Generated API

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Change History

Date	History	Reason
June 2010	Clarified descriptions.	Information enhancement.

June 2010

Clarified descriptions.

Information enhancement.

Inheritance Hierarchy

共用方式為

ElementLink Class

Inheritance Hierarchy

Syntax

Constructors

Properties

Methods

Extension Methods

Fields

Explicit Interface Implementations

Remarks

Examples

Thread Safety

See Also

Reference

Change History

Inheritance Hierarchy

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