DomainModel.CreateElementLink Method

Creates an element link of a specified type.

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

Syntax

'宣告
Public Overridable Function CreateElementLink ( _
    partition As Partition, _
    elementLinkType As Type, _
    roleAssignments As RoleAssignment(), _
    propertyAssignments As PropertyAssignment() _
) As ElementLink

public virtual ElementLink CreateElementLink(
    Partition partition,
    Type elementLinkType,
    RoleAssignment[] roleAssignments,
    PropertyAssignment[] propertyAssignments
)

public:
virtual ElementLink^ CreateElementLink(
    Partition^ partition, 
    Type^ elementLinkType, 
    array<RoleAssignment^>^ roleAssignments, 
    array<PropertyAssignment^>^ propertyAssignments
)

abstract CreateElementLink : 
        partition:Partition * 
        elementLinkType:Type * 
        roleAssignments:RoleAssignment[] * 
        propertyAssignments:PropertyAssignment[] -> ElementLink 
override CreateElementLink : 
        partition:Partition * 
        elementLinkType:Type * 
        roleAssignments:RoleAssignment[] * 
        propertyAssignments:PropertyAssignment[] -> ElementLink 

public function CreateElementLink(
    partition : Partition, 
    elementLinkType : Type, 
    roleAssignments : RoleAssignment[], 
    propertyAssignments : PropertyAssignment[]
) : ElementLink

Parameters

• partition
  Type: Microsoft.VisualStudio.Modeling.Partition
  The partition where the element link is to be created. Typically the DefaultPartition.

• elementLinkType
  Type: System.Type
  A non-abstract domain relationship defined in the DSL Definition.

• roleAssignments
  Type: array<Microsoft.VisualStudio.Modeling.RoleAssignment[]
  An array of relationship role assignments for the new element link.

• propertyAssignments
  Type: array<Microsoft.VisualStudio.Modeling.PropertyAssignment[]
  If the domain relationship defines properties for its instances, you can assign their values here.

Return Value

Type: Microsoft.VisualStudio.Modeling.ElementLink
The ElementLink created.

Remarks

This method of creating a link is more suitable for generated code than for ordinary programming.

The following examples use the types defined in a DSL generated from the Minimal Language solution template.

Examples

To create a link using this method:

ExampleElement element1, element2;
MyLanguageDomainModel dm = ...;

RoleAssignment sourceRole = new RoleAssignment(ExampleElementReferencesTargets.SourceDomainRoleId, element1);
RoleAssignment targetRole = new RoleAssignment(ExampleElementReferencesTargets.TargetDomainRoleId, element2);
ExampleElementReferencesTargets link1 = 
        dm.CreateElementLink(dm.Store.DefaultPartition,
        typeof(ExampleElementReferencesTargets), 
        new RoleAssignment[] { sourceRole, targetRole},
        null)
        as ExampleElementReferencesTargets;

This example creates the same link more directly using the domain relationship:

ExampleElementReferencesTargets link = new 
    ExampleElementReferencesTargets(element1, element2);

If the domain relationship defines role properties on the classes that it associates, and if you do not want a reference to the link, then you can create the link using the role properties. In the Minimal Language DSL, the ExampleElementReferencesTargets relationship defines role properties Source and Target:

// Creates the link without returning a reference to it:
element1.Targets.Add(element2);

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

DomainModel Class

Microsoft.VisualStudio.Modeling Namespace

Other Resources

[redirect] Domain Model in the Generated API