GoXam for WPF v3
CheckLinkValid Method (GraphLinksModel<NodeType,NodeKey,PortKey,LinkType>)
Northwoods.GoXam.Model Namespace > GraphLinksModel<NodeType,NodeKey,PortKey,LinkType> Class : CheckLinkValid Method
a node key identifying the node data from which the link comes
an optional value identifying which port on the "from" node the link is connected to
a node key identify the node data to which the link goes
an optional value identifying which port on the "to" node the link is connected to
true if relinking; false if adding a new link
the original link data that might be modified, if ignoreexistinglink is true
This predicate is true if adding a link between two nodes/ports would result in a validly structured graph.
Syntax

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
ignoreexistinglink
true if relinking; false if adding a new link
oldlinkdata
the original link data that might be modified, if ignoreexistinglink is true

Return Value

The behavior of this predicate depends on the value of ValidCycle and ValidUnconnectedLinks.
See Also

Reference

GraphLinksModel<NodeType,NodeKey,PortKey,LinkType> Class
GraphLinksModel<NodeType,NodeKey,PortKey,LinkType> Members