bool IsLinked( 
   object fromdata,
   object fromparam,
   object todata,
   object toparam
)

Parameters

fromdata

a node key identifying the node data from which the link comes

fromparam

an optional value identifying which port on the "from" node the link is connected to

todata

a node key identify the node data to which the link goes

toparam

an optional value identifying which port on the "to" node the link is connected to

Return Value

This is used for model navigation and graph traversal.

Note that this method is universal, because it can only assume the node data is of type System.Object. The corresponding methods in the generic model classes operate on a specific node data type.

Reference

IDiagramModel Interface
IDiagramModel Members