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EARules_AllowNesting

EARules_AllowNesting allows an Add-In registered to provide rules for a language to specify if two elements should be nested in the Browser window after being nested on a diagram.

This event occurs while a user drags one element onto another in a diagram.

Syntax

Function EARules_AllowNesting (Repository As EA.Repository, Language As String, Child as EA.Element, Parent as EA.Element, Diagram as EA.Diagram) As Integer

The EARules_AllowNesting function syntax contains these parameters.

Parameter

Description

See also

Repository

EA.Repository

Direction: IN

Description: An EA.Repository object representing the currently-open Enterprise Architect model. Poll its members to retrieve model data and user interface status information.

Repository Class

Language

String

Direction: IN

Description: Specifies the language for the rule that Enterprise Architect is requesting. This will match one of the values returned from EARules_Initialize.

EARules_Initialize

Child

EA.Element

Direction: IN

Description: Specifies the element that has been graphically nested within another element.

Element Class

Parent

EA.Element

Direction: IN

Description: Specifies the target element of a drag-and-drop operation within a diagram.

Element Class

Diagram

EA.Diagram

Direction: IN

Description: The diagram that the move event has occurred on.

Diagram Class

Return Value

  • Return a positive value to allow the nesting to occur
  • Return a negative value to use the base rules
  • Return zero to prevent the nesting from occurring