ContextLinkBase Class
The base class for ContextLink. Represents a relationship between two ContextNodeBase objects that is not a parent-child relationship.
Assembly: IACore (in IACore.dll)
Examples of the relationship represented by a ContextLinkBase object include:
A Paragraph node that is encircled by an InkDrawing node. A ContextLinkBase object is created and added to the Links properties of both the Paragraph node and the InkDrawing node. The SourceNode is the InkDrawing node and the DestinationNode is the Paragraph node.
An AnalysisHint node and a WritingRegion node. When an AnalysisHint node is used in ink analysis, a ContextLinkBase is created between the WritingRegion node and the AnalysisHint node. The SourceNode is the AnalysisHint node and the DestinationNode is the WritingRegion node.
Two InkDrawing nodes where a line is drawn between them, as in a flow chart.
To determine the relationship between SourceNode and DestinationNode get the SemanticType by calling the GetPropertyData method.
The following example finds all the nodes that are linked to the ContextNodeBase node, selectedNode. If selectedNode is not a destination node, the destination node is added to an ArrayList named destinationNodes. If selectedNode is not the source node, it is added to an ArrayList named sourceNodes.
Dim destinationNodes As ArrayList = New ArrayList() Dim sourceNodes As ArrayList = New ArrayList() ' Find all the nodes that link to the currently selected node. For Each link As Microsoft.Ink.ContextLink In selectedNode.Links If link.DestinationNode <> selectedNode Then destinationNodes.Add(link.DestinationNode) End If If link.SourceNode <> selectedNode Then sourceNodes.Add(link.SourceNode) End If Next
The following example finds all WritingRegionNode objects in the node tree of an InkAnalyzer named theInkAnalyzerWithHint. It puts those nodes that are linked to a PropertyGuidsForAnalysisHintsBase with a Factoid value of "IS_DATE_FULLDATE" into a ContextNodeCollection named writingRegionsWithFactoids.
Dim writingRegionsWithFactoids As _ New ContextNodeBaseCollection(Me.theInkAnalyzerWithHint) Dim allWritingRegions As ContextNodeBaseCollection = _ Me.theInkAnalyzerWithHint.FindNodesOfType( _ ContextNodeTypeBase.WritingRegion) Dim writingRegion As ContextNodeBase For Each writingRegion In allWritingRegions ' See if they are linked to any factoid Dim link As ContextLinkBase For Each link In writingRegion.Links If link.SourceNode.Type = ContextNodeType.AnalysisHint And _ link.SourceNode.ContainsPropertyData(PropertyGuidsForAnalysisHintsBase.Factoid) Then If CType(link.SourceNode.GetPropertyData(PropertyGuidsForAnalysisHintsBase.Factoid), String) _ = "IS_DATE_FULLDATE" Then writingRegionsWithFactoids.Add(writingRegion) End If End If Next link Next writingRegion
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.