This event is triggered once for each rule defined in EA_OnInitializeUserRules to be performed on each element in the selection being validated. If you don't want to perform the rule defined by RuleID on the given element, then simply return without performing any action. On performing any validation, if a validation error is found, use the Repository.ProjectInterface.PublishResult method to notify Enterprise Architect. Also look at EA_OnInitializeUserRules.

public virtual void EA_OnRunElementRule(
	Repository Repository,
	string RuleID,
	Element Element
)

Public Overridable Sub EA_OnRunElementRule ( _
	Repository As Repository, _
	RuleID As String, _
	Element As Element _
)

public:
virtual void EA_OnRunElementRule(
	Repository^ Repository, 
	String^ RuleID, 
	Element^ Element
)